TA1246AF-TA1246F Fast Delivery |IC PHOENIX CO.,LIMITED

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TA1246AF-TA1246F
HI-FI AUDIO SIGNAL PROCESSOR FOR VHS VCR
TOSHIBA TA1246F/AF
TENTATIVE TOSHIBA BIPOLAR LINEAR INTEGRATED CIRCUIT SILICON MONOLITHIC
TAI 246F, TAI 246AF
Hl-Fl AUDIO SIGNAL PROCESSOR FOR VHS VCR
FEATURES
0 Bus line control (IZC-Bus)
o No adjustments of FM modulation center frequency f0
0 Auto adjustments of BPF center frequency f0
MAIN FUNCTIONS
1. Hi-Fi audio processing
o Input/Output select switch
(4 Line IN to 1 Line Out)
QFP48-P-1014-0.80
Weight : 1.47g (Typ.)
0 Electronic volume (Through/ALC/GCA)
o PNR (Peak Noise Reduction)
0 20 kHz LPF
0 FM modulator-demodulator (NTSC/PAL)
0 Switching noise compensation
2. Others
0 Logarithmic amplifier out for level meter
0 Envelope detector out
0 Provided line out mute transistors
0 Mix out for RF conv. (Built-in ALC)
1 2001-06-25
BLOCK DIAGRAM
Lina.2 (L) IN
Hi-Fi ‘R-ch)
Rec Love Adj.
TV (I) IN
Hi-Fi' (L-ch)
Re: Level Adj.
TV (L) IN
ALC Filter
LineJ (R) IN
Llnl.1 (L) IN
Vref Filier
TA1 246F I AF - 2
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(8)1130
Selector
EEIPB (R)
EE I PB (N)
Output
SelectL
EE I PB (L)
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C. Pulse
-----l_
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- MON) 3W1
NI IN! lid
- MNN un Tut,
"durtr tion Ip-u)
PB FM AGC Filter
FM Out
Mono ALC Filter
Monaural Out
Serial Dam IN
(ACK On!)
Serial Clock IN
Log Amp. (R) Out
Log Amp. (L) Om
TOSHIBA
TA1246F/AF
TOSHIBA TA1246F/AF
TERMINAL CHARATERRISTICS (VCC = 9 V, Ta = 25°C)
PIN TYP. DC TYP. AC
No. FUNCTION VOLTAGE VOLTAGE INTERFACE COMMENT
_ ':Uiir2Uv
Line IN 33 k0 WF "y-1sdiss)
'-qr2drs, E;
(-8dBs) F
Direct Following external circuits and internal
Input 3kQ input resistance of Line IN terminals are
. directly to cl the same.
1 Line.3 (R) IN 4.51/ terminal. g Line.1 (L) IN : pin 47
-18.2dBV v f Line.1 (R) IN : pin 45
(-16st) re Line.2 (L) IN : pin 39
Line.2 (R) IN : pin 38
Line.3 (L) IN : pin5
Line.3 (R) IN : pin1
TV (L) IN : pin 43
TV (R) IN : pin 45
1 fl 0 Connect with external capacitor 330 pF.
2 Vref Out 4.5V - or less The BPF adjustment is reset with 7/ 18
Vcc.1-
o This terminal is used to decide the NR
3 NR Emph. Filter 4.5V - g Emphasis time constant.
(R) m Typ. capacitance : 0.01 pF
s V f (Please use high accuracy one.)
Connect with a capacitor for DC offset
4 DC.F.B. (L) 4.51/ - elimination of PNR circuit.
Direct
5 Line.3 (L) IN 4.5V -18.2dBV 120 kQ Refer to the pin1 : Llne.3 (R) IN.
(-16dBs)
TOSHIBA TA1246F/AF
PIN TYP. DC TYP. AC
No. FUNCTION VOLTAGE VOLTAGE INTERFACE COMMENT
6 Weighting Filter.1
(L) This terminal is used to set the weighting
4.5V - time constant. . . .
Filter.1 : 10 pF offset elimination
7 Weighting Filter.2 Filter.2 : 0.01 pF We.T.C.
This terminal is used to set the Attack/
Recovery time with an external capacitor.
. Typ. capacitance : 10PF
8 Peak Det. Filter (L) - - Attack time : 5ms
Recovery time : 70 ms
Refer to (Remark 8).
0 This terminal has the same function as pin 3 NR
9 NR Emph. Filter (L) 4.5V - Emph. Filter (R).
Refer to the explanation of pin 3.
0 External mute control terminal of Line
By pulling up this terminal to "High"
$11.5 V:5.5V), pin 12 and 14 turn to
GND (muted).
:59; (Refer the application circuit.)
Open 3 Supplement :
10 Aux Mute 0.1 V - - Since this terminal control is independent
f. of Bus control, the mute function can be
j, used at power Off, too, by pulling this
terminal to "High".
Note :
Connect this terminal to GND, if the Aux
Mute function is not used.
. -9.2dBV . .
11 Line (L) Out 4.5V (-7dBs) SEPP L-ch line output terminal.
4 2001-06-25
TOSHIBA
TA1246F/AF
Kl"? FUNCTION JgETADGCE ngEiAAGCE INTERFACE COMMENT
0 At Aux Mute ON (pin 10 : "High"), this
At Mute At Mute terminal is shorted to GND below 20 n.
Line (L) Mute ON : - ON Supplement :
12 0V s 20 f) It does not operate in the Mute command
from the Bus control.
_.................................... _.................... _QZdBV ....................... 6""ihb’di"t'éiiﬁ'i'iiéi"Bi'i'bg"Aﬁi'ﬁiia'rﬁéifei .......
(L-ch Log Amp. IN) - (-TiL)' 8.3 kn meter.
Input impedance : 8.3 kfl
13 Line (R) Out 4.5V (?72ddls1)/ SEPP R-ch line output terminal.
At Mute At Mute o This terminal has the same function as
Line (R) Mute ON : - ON pin 12 Line Mute. Refer to the
14 ............................................. 9 y........ _.................... $200 .......... '.?..i?lt..ry.a.t..ify1.f.o.f....p..ip...1..?.. V....................................
-9.2dBV o This terminal has the same function as
(R-ch Log Amp. IN) - 8.3 kn pin 12 L-ch Log Amp. IN. Refer to the
(-7st) . .
explanation of pm 12.
o Logarithmic detector output terminal
for level meter.
Output voltage : o-sv
Supplement :
0 Refer to the (Remark 12).
15 Log Amp. (L) Out - - 1:09 It When lust Clock mode is selected hy
; Bus, this output also functions during
N the Aux Mute ON.
Setting procedure of Just Clock Mode :
SA No.0 D7 (Log/J. Clock)-)''"
Refer to (Remark 17) for more details of
Just Clock mode.
Log Amp. (R) Out 0 Logarithmic detector output terminal
for level meter.
16 Log Amp. (L) - - 1009 Out t Ita . 0-51/
Input Select SW i pu vo ge '
Cont. (Lg Supplement :
It Refer to (Remark 12).
0 Clock input terminal of IZC-Bus.
Note 2
1kQ Connect with external Pull UP resistor. (As
a result, this terminal becomes "Open
. Vth High" on board.)
17 Serial Clock IN 2.25v - (:3 Pull UP resistance : 4.7 k0
(Max. f = 500 kHz)
100 k0 Supplement :
or greater The voltage can be impressed also at the
VCC OFF.
5 2001-06-25
TOSHIBA TA1246F/AF
PIN TYP. DC TYP. AC
No. FUNCTION VOLTAGE VOLTAGE INTERFACE COMMENT
0 Data input and ACK output terminal of
IZC-Bus.
Note :
0 Connect with external Pull UP resistor.
' (As a result, this terminal becomes "Open
-if' High" on board.)
Wm Pull UP resistance : 4.7 k!)
- . (Max. f = 500 kHz)
Supplement :
Data input resistance : i 100 k0
Output resistance of ACK "Low" : s
(ACK 0.3V : 14mA can be pull in.)
The voltage can be impressed also at the
Vcc OFF.
18 Serial Data IN Vth
(ACK Out) 2.25V
-9.2dBV 1009 Monaural output for RF Modulator.
19 Monaural Out 4.5V (-7dBs) Refer to the (Remark 10).
20 GND.2 - - GND for FM circuit. (VCC : 5V)
ALC filter terminal for monaural out.
Supplement :
The Mono ALC does not function when
this terminal is connected with GND.
21 Mono ALC Filter - -
6 2001-06-25
TOSHIBA
TA1246F/AF
FUNCTION
TYP. DC
VOLTAGE
TYP. AC
VO LTAGE
INTERFACE
COMMENT
FM Out
(BPF Monitor Out)
1.05 Vp-p
0 .SmA
FM Modulation output. (L/R Mix Out)
Supplement 1 :
An output channel can be selected at Rec
mode. (L-ch or R-ch)
Method :
(Refer to the (Remark 16) for details.)
1) Pin 31 : open (Refer to the
"Additional function 1 of pin 31.)
2) Impress the voltage to pin 30
(FM Mod. Monitor Cont.)
o The L/R Mix ratio is varied by Bus
control.
Supplement 2 :
The BPF characteristic can be monitored at
PB via the route "pin 25 (PB FM IN)-aBPF
-9 pin 22".
Method :
(Refer to the (Remark 16) for details.)
1) Pin 27 (Hi-Fi Det. Out) : 9.0V
2) The monitored channel is switched
by impressing the voltage to pin 31.
(Refer to the "Additional function 2
of pin 31.)
Pin 31 : 9V : R-ch, GND : L-ch
0 As for demodulators in this IC, both L-
ch and R-ch operate while monitoring
though the monitored channel is one
of them.
VCC for FM circuit : 5V
PB FM AGC Filter
0~1.7V
Filter terminal of PB FM AGC Det.
Supplement :
AGC flat range : PB FM 50--150 mVp-p
(L-ch or R-ch component)
Reference channel of AGC is selected by
Bus SA No.2 D2. (R-ch : 0, L-ch : 1)
1#Fv~0.01,uF
TOSHIBA TA1246F/AF
No. FUNCTION TYP. DC TYP. AC
VOLTAGE VOLTAGE INTERFACE COMMENT
PB FM input terminal.
It UR mixed input level :
Max 400 ml/p-p
Typ. (Single component : Max. 200 mi/p-p)
25 PB FM IN OV 100 mV 0 Non Hi-Fi Det. Level : 5mVp-p
p-p Supplement :
PB FM Amp. of AGC input : 0/ +3dB
(Bus SA No.3 D1 (PB FM Gain)) at +3dB
mode typ. IN : 70 mVp-p
The output terminal of Envelope detector
of PB FM.
(Connect with a capacitor.)
This output terminal can be used for
tracking adjustment. Note that the this
output impedance is high.
Supplement :
0 Output voltage
0V (Non Hi-Fi)~4.3V (Hi-Fi)
Non Hi-Fi : 0.1 V of less
VCC 5V
26 ENV. Det. Out 0--4.3V -
0.056/1F
8 2001-06-25
TOSHIBA
TA1246F/AF
TYP. DC
TYP. AC
No. FUNCTION VOLTAGE VOLTAGE INTERFACE COMMENT
Output terminal of PB FM detection.
Supplement 1 :
0 Output voltage
0V (Hi-Fi)/4.3V (Non Hi-Fi)
0 Output resistance
Hi-Fi : 48 k0
Non Hi-Fi : Typ. 1000
Supplement 2 :
(*) The drop out detection level is - 19--
-21dB. The timing of the Non.
Hi-Fi detection is shown in the
following figures. Refer to (Remark 14
and 15) for details. Moreover, set the
Mute by the Bus control at the trick.
VCC2 5V DOC Det. at -19---21 dB
(is) TrrrTTrp? iiiiiiiiiiiiiiiii ll
FBFMIN yj,ly,i,ll,y,' 'ii'lii'jjji'jlijj'ili'Hii:
I I 'tttto-Orr l I
27 Hi-Fi Det. Out 0/4.3v - s IC inside I I I
: DOC Det. I I I I
Filter I - I I -
-hi-- Moral l
Hi-Fi :
Det. Out
Supplement 3 :
(Refer the pin 22, 30 and 31)
0 Impress 9.0V to this terminal for
following test modes.
BPF monitor mode ON :
At PB mode, the output signal of BPF
can be monitored at pin 22.
Pin 30 monitor output R-ch select :
The monitor output switches to R-ch.
0 Audio signal of Line Out and Monaural
Out turn into Norm. Audio at Non. Hi-
(Refer to (Remark 16) for details.)
TOSHIBA
TA1246F/AF
FUNCTION
TYP. DC
VOLTAGE
TYP. AC
VO LTAGE
INTERFACE
COMMENT
Switching Pulse IN
Pulse input terminal for switching noise
compensation.
Current input type. Threshold : 50 PA Typ.
Supplement :
The CR current conversion as the
following figure is necessary in case of
voltage pulse.
Pulse Level : 1.5 Vp.p~5.0 Vp-p
1.:5 Vp_p~5.0 Vp-p
_.r'ry-ur
680 pF
DC voltage only.
Zener Zap Pulse
Zener Zap pulse input terminal.
Note :
Please do not use this terminal and
connect with GND because this terminal is
used for manufacture.
TOSHIBA
TA1246F/AF
FUNCTION
TYP. DC
VOLTAGE
TYP. AC
VO LTAGE
INTERFACE
COMMENT
FM Mod. Monitor
(Zener Zap Cont.)
Rec. PNR / PB
SW.N.C Monitor
- 10.2 dBV
(-8dBs)
100 fl
or less
Test terminal for evaluation.
(Refer to (Remark 16).)
This terminal is usually used to control the
L/R selection of Rec FM Out.
Threshold 5V : L-ch
GND : R-ch
'S'iib'hierhehtm: ............................................................
Zap mode ON : Zener Zap writing mode is
turned ON by connecting with VCC1
(9 V).
Note :
Don't use this mode usually because this
control is used when the IC is
manufactured.
'iirGr'Gac'ii/inGii"ijiiiiriiiiir,"ihis' ..............
terminal works as the following waveform
monitor.
0 At Rec :
0 At PB
PNR output
: After Switching Noise
Compensation.
Supplement :
These outputs are usually L-ch waveform,
but you can select R-ch by impressing
9.0V to pin 27.
Note :
This terminal usually works as s control
input, not a monitor output.
Therefore, please sat the monitor mode
with pin 31 before monitoring.
Moreover, please do not impress the
forced voltage to pin 30 at the monitor
TOSHIBA
TA1246F/AF
Kl"? FUNCTION JngADGCE ngEtAAGCE INTERFACE COMMENT
Normal audio input terminal for PB
(possible at EE).
Supplement 1 :
Gain from pin 31 to line Out is 9dB.
Supplement 2 :
Please insert an external attenuator
before input, if the output level of the
Normal Audio IN normal audio IC is high.
Example :
PB Norm. Out -17.2dBV
-17.2dBV g
31 ................................... 4.5V (c,y F This terminal has the following functions
Vref concurrently. (Refer to the pin 22, 27 and
Monitor/Cont. Additional flinction l. (Rec-mode) :
(Mode SW ) o The funttion of pm 30 IS selected as a
control input or waveform monitor.
Setting : Connect with-.
Open : Pin 30 Control Mode
GND : Pin 30 Monitor Mode
...................................... A&‘d‘i‘i’i‘dﬁéi"iur'iéfi'a'ri"'2""(‘iié'ﬁiaaéi'":"""""""""'
o L-ch/R-ch selection of BPF monitor (pin
(BPF Monitor) 22) at PB.
L/R Select Setting : Connect with-.
9V : Pin 22 BPF R-ch Monitor
GND : Pin 22 BPF L-ch Monitor
32 Peak Det. Filter - - o This terminal has the same function as pin 8 but
(R) R-ch. Refer to pin 8.
33 Weighting Filter.2 o This terminal has the same function as pin 7 but
(R) R-ch. Refer to pin 7.
34 Weighting Filter.1 4.51/ - o This terminal has the same function as pin 6 but
(R) R-ch. Refer to pin 6.
Output terminal for Normal audio IC at
. Rec.
35 2:;mal Audio. 4.5V ?loézdgfy SEPP Supplement :
Use pin 3 Line.3 (L) as SAP input at
applying to SAP.
12 2001-06-25
TOSHIBA TA1246F/AF
Kl"? FUNCTION ngffADé‘E (2'l'iA1 INTERFACE COMMENT
o This terminal has the same function as pin4 but
36 DCF.B (R) 4.5V - R-ch. Refer to pin 4.
37 VCC_1 9.0V - - VCC for NR circuit : 9V
Direct
38 Line.2 (R) IN 4.5V -18.2dBV 120 k0 Refer to pin1 : Line.3 (R) IN.
(-16dBs)
Direct
39 Line.2 (L) IN 4.5V -18.2dBV 120 k0 Refer to pin1 : Line.3 (R) IN.
(-16dBs)
The control terminal for Hi-Fi Audio EVR
(electronic variable resistor) level.
Supplement :
EVR (R-ch) Open When EVR is used, EVR rhode s.witch (ALC
40 Rec Level Adj. 0V - /Through/Manu) of Bus IS set In
"Manual". (SA No.1 D4 and D5)
DC Adj. Width : o~4.5v (Typ. 1.8V)
Gain width : -cxo--14dB (Typ. OdB)
Open or GND when EVR unused.
Direct
41 TV (R) IN 4.5V -18.2dBV 120 k0 Refer to pin1 : Line.3 (R) IN.
(-16dBs)
42 EX: L(Ichehl)Adj. IT - Refer to pin40 : (R-ch) Rec Level Adj.
Direct
43 TV (L) IN 4.5V -18.2dBV 120 k!) Refer to pin1 : Line.3 (R) IN.
(-16dBs)
Filter terminal for EVR ALC.
EVR ALC Attack Time :
C; Set by built-in 1000 and external
. F capacitance.
44 ALC Filter - - EVR ALC Recovery Time : Set by external
Open resistance and capacitance.
(The GND connection is recommended at
ALC unused.)
Direct
45 Line.1 (R) IN 4.5V -18.2dBV 120 k0 Refer to pin1 : Line.3 (R) IN.
(-16dBs)
13 2001-06-25
TOSHIBA
TA1246F/AF
FUNCTION
TYP. DC
VOLTAGE
TYP. AC
VO LTAGE
INTERFACE
COMMENT
GND for NR circuit (VCC 9V).
We recommend the GND pattern is
separated between this terminal and FM
GND (pin 20) and filter's GND of NR is
connected with this terminal.
Line.1 (L) IN
Direct
- 18.2 dBV
(-16dBs)
120 k0
Refer to pin1 : Line.3 (R) IN.
Vref Filter
45k0 45kQ
0 Connect with external capacitor for
ripple rejection of signal lines.
o Vref rise time is set with external
capacitance.
(Note) Please use the same capacitance
as the recommended application
circuit.
If a different constant is used,
pop noise may be occurred.
TOSHIBA TA1246F/AF
Function explanation contents ... Operations and reference characteristics of this IC are showed
afterwards.
(Remark 1) ...... Handling instruction for this IC and outline of Bus usage.
About Bus Control (l2C-Bus)
o Data/Clock Input Format
0 Bit Map of Bus Control Mode
(Remark 2) ...... Rough sketch of block diagram
(Remark 3) ...... Input/output selector block diagram
(Remark 4) ...... Table of input/output selector control
(Remark 5) ...... Hi-Fi audio level chart (Rec)
(Remark 6) ...... Hi-Fi audio level chart (PB)
(Remark 7) ...... Hi-Fi audio electric volume characteristic (Rec)
(Remark 8) ...... PNR attack/recovery time
(Remark 9) ...... 20kHz LPF characteristic
(Remark 10) ..... Monaural out (to RF conv.) ALC characteristics
(Remark 11) ..... BPF
(Remark 12) ..... Characteristic of level meter log amp.
(Remark 13) ..... Characteristic of envelope det. out
(Remark 14) ..... PB FM drop out
(Remark 15) ..... PB FM mute (Non Hi-Fi detection)
(Remark 16) ..... Procedure of test mode
(Remark 17) ..... Method of using log amp. for just clock
(Remark 18) ..... FM mod. out temperature characteristic
(Remark 19) ..... FM mod. out voltage characteristic
15 2001-06-25
TOSHIBA TA1246F/AF
OPERATIONS AND REFERENCE CHARACTERISTICS
(Remark 1) Handling instruction for this IC and outline of the Bus usage
1. This IC doesn't operate before receiving the Bus data, so it is necessary to send the
Bus data first after power ON.
2. The Bus is transferred in order of Slave Address, Sub Address and Data. There are 7
addresses in all.
For the simplicity, Sub Address is sometimes represented in the decimal as "SA No. "
in this document.
3. The control data of this IC is composed with 8bit without Slave and Sub Address. We
represent the control data by a number of two figures in hexadecimal.
Ex. ... 8bit in binary : 10001111
4 by 4 in binary : 1000 and 1111
In decimal : 8 and 15
In hexadecimal : 8 and F
2 figures in hex. : 8F
4. The center frequency of FM Mod. has been already adjusted during IC
manufacturing, so SA No.5 and 6 cannot be operated.
5. PB FM BPF is adjusted automatically. But manual adjustment mode exists, too. By
select manual mode ON (SA No.1 D6), you can adjust the center frequency of BPF by
setting the Bus data from Do to D7 on SA No.3 and 4.
6. It is Not necessary to set SA No. from 3 to 6 if you set the BPF mode"Auto".
16 2001-06-25
TOSHIBA TA1246F/AF
BUS CONTROL MODE
ADDRESS DATA
SLAVE SUB-ADD. D7 l D6 I Ds l D4 l D3 l Dit l D1 I Do
0 00000000 Log/ 5 . . i." Rec Norm. Out :...' i."
J.Clock i.' Hi-Fi Select sw i' Select sw i.' Mute i' EE/Rec/PB
Auto i,' BPF .
1 00000001 BPF i." mode i' i'
(Requ-) E(Auto /).f Rec EVR mode i' Output SW
est i' Manu i' .
2 00000010 FM Out L/R Mix i.' ::.' PB FM i..' PB FM EM/OEdei’Ffo
. 2 SW.N.C Pulse Width i' AGC 5 . i.'
Ratio . . (R/L) Gain g(NTSC
11101010 PAL
3 00000011 END ZAP; Blank BPF f0 L-ch Manual Adjust
4 00000100 Blank i.." Blank BPF f0 R-ch Manual Adjust
5 00000101 FM Mod. f0 L-ch Adjust
6 00000110 FM Mod. f0 R-ch Adjust
i.'.' Supplement : SA No.3 and 4 are not used because BPF center frequency is usually set with
automatic adjustment mode.
: SA No.5 and 6 cannot be used because the center frequency of FM Mod. is
usually set before shipping.
i. ......... SA No. (Sub Address No) .' It represent what kind of data is it at explaining of
operations and method of measurements.
17 2001-06-25
TOSHIBA TA1246F/AF
IZC-BUS OUTLINE
The I2C-Bus has two wires, serial data (SDA) and serial clock (SCL) which carry information between
the ICs connected to the Bus. The Bus terns to busy after the Start Condition.
And the Bus turns to free again after the Stio Condition.
Don't vary the data while clock is "I".
Serial Clock
Start" "c'iiiiiiior, Stop'ESrH'ciition
A HIGH to LOW transition of the SDA line while SCL is HIGH defines a Start Condition. A LOW to
HIGH transition of the SDA line while SCL is HIGH defines a Stop Condition. (The inside of CI] )
Start and stop of data transmissions follow the above-defined form.
DON'T Don't vary the data while clock is "1" at data transmission. The data signal follows
the avove-illustrated form.
If the slave IC receive the data successfully, it output acknowledge "Low" to the master IC (PC Ack.
Level Max. : 0.4V). Acknowledge synchronize with every 9th clock of data.
The connection between master and slave IC is illustrated as follows.
Master Bus
Decoder
pg-Com.
External PuII-Up resistors needed. ... If there is a pair of PuII-Up resistors with any
of ICs which are controlled by FC-Bus, it
doesn't need more PuII-Up resister for this IC.
18 2001-06-25
TOSHIBA TA1246F/AF
BUS CONTROL INPUT FORMAT (IZC-BUS)
Format. 1 : Sub-add. and data input by turns.
...... Data of Data of ......
i Slave Address Sub-Address "A'' Sub-Add. "A'' Sub-Address "B'' Sub-Add. "B''
Pin18(Data) . 0000**** ******** 0000**** ********
Pin 17 (Clock)
It start by changing the Data from "HIGH" to "LOW" while the clock is "HIGH". And it stops by changing the Data from
"LOW" to "HIGH" while the clock is "HIGH".
Format. 2 : Sub-add. input continually.
...... Data of Data of Data of ......
i' Slave Address Sub-Address "N'' Sub-Add, "N'' Sub-Add. "N + I" Sub-Add. "N + 2" E
Pin18(Data) . 1000**** ******** ******** ******** :.'
Pin 17 (Clock)
It start by changing the Data from "HIGH" to "LOW" while the clock is "HIGH". And it stops by changing the Data from
"LOW" to "HIGH" while the clock is "HIGH".
(Note 1) While the clock is "HIGH", don't vary the Data from "HIGH" to "LOW" or from
"LOW" to "HIGH" to input data.
(Note 2) Do not change the format ("by turns" or "continually") on transmitting halfway.
19 2001-06-25
TOSHIBA
TA1246F/AF
BUS LINE MODE
"i.'."'..'.'."".'."..'.'".'.'.'.".'.: I Initial Mode (At start up)
BUS ITEM
SUB-ADD.
COMMENT
EE/Rec/PB
Norm. Audio
Input SW
Line.3 (L)
Line.3 (L)
Hi-Fi Select SW
Log / J.Clock
i.' 00000000
D7lD6lDslD4.lD3lD2lD1lDo
Rec FM Mod. is
not outputted.
EE mode :
Rec FM Mod. is
outputted.
Rec mode :
PB mode :
Mute at Line Out & PB SW.
(Audio outputs signal (line
out and monaural out)
don't turn to Norm. Audio)
Mix L or R-ch
of Hi-Fi
selected with
D5 & D6.
L-ch (Main) of
Hi-Fi selected
with D5 & Dir
Apply to SAP :
Line.3 (L) is
selected.
Selector for
Rec Norm.
Audio IC
—\O—‘O
Hi-Fi Audio Input Selector.
Normal state to use
Logarithmic Amp.. (S1 : A)
Just Clock mode.
(SI : B)
TOSHIBA
TA1246F/AF
BUS ITEM
SUB-ADD.
COMMENT
Output SW
Hi-Fi Select
Hi-Fi + Norm
Mix Out
Norm Out
Monitor
Select Line.2
Monitor
Select Line.3
Rec EVR mode
:..rtfirii(iiirirrrf.:.
Through
Manual
BPF mode
(Auto/Manu)
Auto BPF
(Request)
D7IDGJBSIDAID3L
s s 1 a ioi.
Dz|D1|
2 505_
.'.'.'. ..i.i,.f...tS..rS.t.?...,9..y..t...,........,,......,,....,,........,.....j.
Dual ch, L-ch Out
Dual ch, R-ch Out
Mix out of Hi-Fi Stereo and
Norm. Audio
Dual ch, Mix Out of Hi-Fi
(L) and Norm. Audio
Dual ch, Mix Out of Hi-Fi
(R) and Norm. Audio
Norm. Audio Ou
Line.2 Monitor :
Line.3 Monitor :
_\_|_|_|_|_|_|_|oo
_\o_|o_\o_|o_\
_§_i_‘_|oooo_|
_\_.oo_‘—\OO—I
—\—-oo
EVR Through mode
EVR Manual Adj. mode
BPF is adjusted
automatically VCC ON.
Use this mode if BPF is
adjusted by Manual.
Shot only 1 pulse at
request.
TOSHIBA
TA1246F/AF
BUS ITEM
SUB-ADD.
COMMENT
Mod. f0 / BPF
(NTSC/PAL)
PB FM Gain
PB FM AGC
(L / R)
SW.N.C. Pulse
FM L/R Mix
i.' 00000010
D7lDiP5.lD4.lD3-l/22lD1lDo
; i E E f E i:.." 0
Mod. f0 & BPF:
1.3M/1.7MHz
Mod. f0 & BPF:
1.4M/1.8MH2
PB FM AGC Gain Selector
"Norm/UP"
L/R Selector :
PB FM AGC Det. Input and
BPF Monitor.
_\_\_|_\oooo
Variable Switching Noise
Compensation Width.
_‘_\oo—|—\OO
—-o—‘o—-o—ro
—»—‘oo
Variable L/R Mix ratio of
Rec FM Out.
BUS ITEM
SUB-ADD.
D7lDtilDslD4lD3lD2lD1lD0
COMMENT
BPF f0 L-ch
Manual Adjust
f0 Center
- 19.2%
END ZAP
5 00000011
"i0:.'.0i.0:..'0i".0i".0
§1§o§o§o§o§o
Use for center frequency
adjustment of BPF by
manual.
(Sat SA No.1 D6 BPF Mode
"Manual")
It is no matter whichever
"0" or "1".
Test Bit for manufacturing
0 It is reserved for the end
of FM Mod. f0
adjustment.
TOSHIBA
TA1246F/AF
BUS ITEM
SUB-ADD.
D7lP6lD5lD4lD3.lD2lD1lDo
COMMENT
BPF f0 R-ch
Manual Adjust
f0 Center
- 19.2%
3 00000100
EOE0§0§0E0§o
"i1.i.0i0i.0:.".0i.0
Use for center frequency
adjustment of BPF by
manual.
(Set SA No.1 D6 BPF Mode
"Manual")
Width of adjustment :
A19.2% Max (0.6%/Step)
It is no matter whichever
"0" or "I".
It is no matter whichever
"0" or "1".
BUS ITEM
SUB-ADD.
D7lDilp5lD4lD3jlp2W1lD0
COMMENT
FM Mod f0
L-ch Adjust
- 17.5%
f0 Center
0:,:0,i0.i.0i,.0.i.0ioi"0
1i.0i.'.0:.'..0i.0:_'.0.ioi.0
It is reserved for adjustment
of FM Mod. center
frequency at manufacturing.
TOSHIBA
TA1246F/AF
BUS ITEM
SUB-ADD.
D7W6lp5lD4lD3jp2W1W0
COMMENT
FM Mod f0
R-ch Adjust
- 17.5%
f0 Center
0.i0.i0.i.0'::0.i.0i0i'0
1.:'i::'0i'.ioi0i.'.io':.:ioi0
It is reserved for adjustment
of FM Mod. center
frequency at manufacturing.
TOSHIBA TA1246F/AF
(Remark 2) Rough sketch of block diagram
I- ------------------ "
l l Rec FM Out I
I i (y)
Hi-Fi I
A P l 25
udio I rocess I PB FM IN Cys)
l FM Mod FM Demod l
l Rec PNR PB PNR l
|_ ________________________________ "
Hi-Fi PB o Hi-Fi
Input "' Iii,
Select SW
I I Output
c, nput SIgna Norm Output signal
A '"u"'u-"w""o()
Select SW
& Norm
. Monitor
Norm. Audio ""
-10-2dBV,r "r-17.2dw
Another IC I
I EE I
- ----- +0 I
-tr--g
Normal
Audio Process
Normal Audio Head
0 Refer to (Remark 2) about table of Input/Output selecter control.
0 Refer to (Remark 3) (Input/output selecter diagram).
25 2001-06-25
(Remark 3)
Inputloutput selector block diagram
Line.3 (R) IN
Select SW
Line.1(R)lNO L
Line.2 (R) IN C :«
Line.3 (R) IN 0—
TV (R) IN
Hi-Fi Mix
£+)_ (L+R)
Line.1 (L) IN
Line.2 (L) IN O—h-wo
Line3 (L)1N 0
TV (L) m C
Rec Norm. Out
Select SW
Line.2 (R) IN
5 Audio '
3 Process
5 ........... EHi'Fi (R)
EEE/PB
-Hi-Fl (L)
Hi-Fi I Mix! Norm SW
_} Monitor
Inthoni SW
Line.2 (L) IN
. Input Selector
TA1246F/ AF - 26
§—1o.2dav 5
- 17.2 dBV
Line.3 (L) IN
Output Selector
Stereo/LIR SW
Line (R) Out
Monaural Out
Line (L) Out
TOSHIBA
TA1246F/AF
TOSHIBA
(Remark 4)
Table of input selector control
TA1246F/AF
BUS DATA SELECTED INPUT SIGNAL
Hi-Fi SELECT sw REEETE’C'WWSUT Hi-Fi (L) Hi-Fi (R) REC NORMAL OUT
D6 D5 D4 D3 TERMINAL
0 0 0 0 TV (L) TV (R) TV (L + R)
0 0 0 1 TV (L) TV (R) TV (L)
0 0 1 * TV (L) TV (R) Line.3 (L)
0 1 0 0 Line.1 (L) Line.1 (R) Line.1 (L + R)
0 1 0 1 Line.1 (L) Line.1 (R) Line.1 (L)
0 1 1 * Line.1 (L) Line.1 (R) Line.3 (L)
1 0 0 0 Line.2 (L) Line.2 (R) Line.2 (L + R)
1 0 0 1 Line.2 (L) Line.2 (R) Line.2 (L)
1 0 1 * Line.2 (L) Line.2 (R) Line.3 (L)
1 1 0 0 Line.3 (L) Line.3 (R) Line.3 (L + R)
1 1 0 1 Line.3 (L) Line.3 (R) Line.3 (L)
1 1 1 * Line.3 (L) Line.3 (R) Line.3 (L)
Table of output selector control
BUS DATA OUTPUT SIGNAL
OUTPUT sw TERMINAL TERMINAL TERMINAL
D3 D; D1 Do LINE (L) OUT LINE (R) OUT MONAURAL OUT
0 0 O 0 Hi-Fi (L) Hi-Fi (R) Hi-Fi (L + R)
0 0 0 1 Hi-Fi (L) Hi-Fi (L) Hi-Fi (L)
0 0 1 0 Hi-Fi (R) Hi-Fi (R) Hi-Fi (R)
0 1 0 0 Hi-Fi (L) + Norm Hi-Fi (R) + Norm Hi-Fi (L + R) + Norm
0 1 0 1 Hi-Fi (L) + Norm Hi-Fi (L) + Norm Hi-Fi (L) + Norm
0 1 1 0 Hi-Fi (R) + Norm Hi-Fi (R) + Norm Hi-Fi (R) + Norm
0 1 1 1 Norm Norm Norm
1 0 0 0 Line.2 (L) Line.2 (R) Line.2 (L + R)
1 0 0 1 Line.2 (L) Line.2 (L) Line.2 (L)
1 0 1 0 Line.2 (R) Line.2 (R) Line.2 (R)
1 1 0 0 Line.3 (L) Line.3 (R) Line.3 (L + R)
1 1 0 1 Line.3 (L) Line.3 (L) Line.3 (L)
1 1 1 0 Line.3 (R) Line.3 (R) Line.3 (R)
27 2001-06-25
(Remark 5)
Hi-Fi audio level chart (Rec)
Typ. Level
Norm. Audio Output.
' Norm.
Audio lC
IC ‘erminal
Line IN. 33!“
ENorm. Audio
50mm sw IN
Output
TV IN Selenor ' ALC
Through
we“ 3 EVR Vol. Typrf
adjusted with EVR.
-~....,.:ada
.. .......... ¢
Range which can be
Selector
IC terminal
IC terminal
Monaural Out
=1 Line Out I
‘20:" Typ. Level
TA1246F I AF — 28
Vcc : 9V limited
Rec FM Out
1:140 kHz‘l
1:53 kHz
: TA1246AF
149 kHl
TOSHIBA
TA1246F/AF
(Remark 6)
TA1246FIAF - 29
Hi-Fi audio level chart (PB)
PB FM IN
(d BV)
0;-1.2(:140kHz)
o ________________
5 -1o.2(:50kHz)
Typ. Level
Normv Audio
Output SW IN
Audio IC
IC terminal
Monaural Out
Omput _|\
J PNR I Selector l/
Expand _ _
—1 2 ---—6-""
------ ¢“"- 5-0.2
TA1246AF
TA1246F
TOSHIBA
TA1246F/AF
TOSHIBA
(Remark 7)
Hi-Fi audio electric volume characteristic (Rec)
EVR GAIN
PlN11/13 Line Out OUTPUT LEVEL
EVR MANUAL MODE
1.0 2.0
le : f=1kHz, -20.2dBV
3.0 4.0 5.0
PlN41/43 EVR CONTROL VOLTAGE (V)
ALC Level
EVR ALC MODE
-5 -20 5 6
Line IN INPUT LEVEL (dBV)
PlN11/13 Line Out OUTPUT LEVEL (dBV)
Flatness
0.6 dB
TA1246F/AF
TOSHIBA TA1246F/AF
(Remark 8) PNR attack/recovery/time
1. DIN : TV IN (Pin 41, 43)
2.5 Hz (- 14.2 dBV)/5 kHz (-34.2 dBV) Tone-burst AM
2. VOUT : Monitor Out (Pin 30)
(A voltage follower circuit is necessary to measure the characteristics.)
It is necessary to set the IC in Monitor Mode by impressing 9V to pin 27 to
monitor the signal from pin 30. When monitoring, pin 30 is usually an
output of L-ch. The output turn to R-ch by impressing 9V to pin 31. (Refer
to remark 16)
Vf "''''''"'''"'')' .......... -
TVIN “““m """""""““i“ i
Pin30 IIIIIII i." l iiiiiL'.L'".2'.2'.2.L'"."i'.'.''. i'.'.'.'.'.'.'.".'.'.'. f '.' ........ f
Monitor Out 'ii)iirtt52SlNJNJN) H1 H1 + 2 dB
LI-2d8 LI
31 2001-06-25
TOSHIBA TA1246F/AF
(Remark 9) 20 kHz LPF (Only for reference : This characteristic cannot be measured at any terminal.)
LPF OUTPUT GAIN
8k 9k 10k 12k 14k 16k 18k 20k 25k 30k 40k
LPF INPUT FREQUENCY (Hz)
(Remark 10) Monaural out (to RF conv.) ALC characteristic
ALC Level
Flatness
0.2 dB
P|N19 Monaural Out OUTPUT LEVEL (dBV)
-10 -5 -4 0 4 5 10
PIN 43 TV IN (L) INPUT LEVEL (dBV)
32 2001-06-25
TOSHIBA TA1246F/AF
(Remark 11) Features of BPF characteristic
Gain characteristic .. to have notch characteristic in order to prevent FM signals from
other channels
Group delay ........ to flaten group delay characteristic in order to prevent strain
inferiority.
BPF Automatic Adjustment
This IC automatically adjusts the BPF characteristic with 6 bit resolution using bus line
clock at start-up. So, it can always keep stable characteristics.
Supplements ........ OD It needs clock pulses to adjust the BPF characteristic.
(clock frequency of less than 200 kHz, maximum 512 pulses)
There is no problem to send data during automatic adjust,
but pay attention as not to set the BPF Request Mode "ON"
again (SA No. 1, D5). The adjustment works independently
respectively by L-ch and R-ch and ends automatically.
© Re-adjust the BPF characteristic with "BPF Request mode"
after start-up at use.
BPF Request mode '. SA No. 1, D5. We recommend this mode
to used every time at play-back (just before play-back).
(Caution)
Do not automatic adjust in the state of power supply
transition and the state of unstably. And do not send the
clock pulse or the data pulse in the state of power supply
transition.
Usage of automatic adjustment (Setup procedure)
1. Usage at every normal start-up
(1) Since automatic adjustment starts as soon as pin 2 (Vref) voltage exceeds 7/18V
Ncc H), automatic adjustment will be executed by inputting clock pulses at that
(It is not particularly necessary the Bus line data.)
2. Usage after start-up
(1) Automatic adjustment starts with the BPF Request mode "ON" (SA No. l, D5)
(2) Setthe BPF request mode "OFF".
And the adjustment is executed by inputting the clock pulses.
Supplements :
OD If the BPF request mode "ON", the adjustment definitely starts from the
initial state.
(2) BPF Request can set up in any of Rec and PB mode, but pay attention that
modulator an demodulator atop at adjust mode.
(3) We recommend the automatic adjust should be executed at start-up or just
before play-back.
33 2001-06-25
TOSHIBA TA1246F/AF
BPF frequency characteristic.
Supplement ... In this IC, BPF f0 and Mod. f0 are automatically shifted by choosing NTSC
or PAL with Bus line.
NTSC MODE
2500 o
FREQUENCY (MHz)
PAL MODE
2500 8
0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4
FREQUENCY (MHz)
34 2001-06-25
TOSHIBA TA1246F/AF
(Remark 12) Characteristic of level meter log amp.
5 - - --.e.-"
V 3 Just Clock Mode f
/' "Log Mode
-50 -40 -30 -20 -10 0 1O
PIN 12/14 Log Amp. IN (dBV)
PIN 43 TV (L) IN (dBV)
(Remark 13) Characteristic of envelope det. out
PB FM IN is Mix IN of L and R, but the characteristics as follows illustrate as either
channel of L or R.
PIN 26 (V)
0 50 100 150 200 250 300 350 400
PIN 25 PB FM IN (L OR R) LEVEL (mr/p-p)
35 2001-06-25
TOSHIBA TA1246F/AF
(Remark 14) PB FM drop out
Outline of this function
DOC (Drop-Out Compensation)
This IC detects "Dropout" when the PB FM signal is missed for 4ps of more and the
dropout compensation works shortest between 18ps.
We call this dropout compensation "Smoothing Mute" and this corrects play-back
audio signal.
In the compensation, the electric potential is smoothly brought close from the
dropout detection point toward the Vref.
Fig.1 shows the waveform of the dropout detection timing and the DOC operation.
Supplement ...... The audio outputs does not turn to Normal Audio when the
dropout is detected.
4/15 or less 4ps or more I
-e i“ F—H
I I I I
I I I I
PB FMIN I Illllllllllllllllll OdB
(Single component)
-20dB ---- -
Detection delay_J u-
I u- Release delay
4ps t DOC
j ' 18ps
DOC detection Normal
(Internal of IC)
DOC operation
__________________ Vref potential
Smoothing Mute
PB audio signal
(After de-modulation) l
36 2001-06-25
TOSHIBA TA1246F/AF
Even if PB FM Level changes somewhat, OdB which becomes the reference of
detection is constantly controlled with AGC because dropout is detected by the
following PB FM AGC signal.
The response time of AGC is set much longer than the dropout time. Therefore, the
dropout is not lifted up in AGC.
Fig.2 shows the dropout detection level, the PB FM Level movement and the
appearance of the control of AGC.
Supplement ...... The dropout detection level is -20dB. The hysteresis of 6dB is
applied to release level. (Refer to the following figure.)
Displacement at slow time gradually.
Pin25 -------r-
PB FMIN (
s Ie h _--------------
(Sing ch) l semvpp
I -------_-- -r----2i-so- ,
300mVp-p l I p-p
l AGC flat range l
FM AGCOut ll E3iiinm-
Drop Out
AGC does not follow to the change in a short period.
37 2001-06-25
TOSHIBA TA1246F/AF
(Remark 15)
PB FMIN llllllllllllllllll
(Single ch)
DOC detection
(IC inside)
PB FM mute (Non Hi-Fi detection)
Outline of this function
When the dropout of the PB FM signal detects and 340 ps of more continues, this IC
detects Non Hi-Fi.
Release of Non Hi-Fi detection is after 3.3 ms after the dropout is released.
If Non Hi-Fi is detected, the Hi-Fi processing part is muted and audio outputs turn to
Normal Audio.
340 ps or less (Min : 140/15) Mote; or more (Min : 140 ps)
_.I v- k—ul
I I I I
Non DOC
I -----t-- r--vth
Hi-Fi Det. Filter M\ I
(IC inside) I l II I I :
I I I I I I
I I Detection delay I L- __I L_Release delay
I I 340ps (Min : 140 ,asT'I l I 3.3 ms (Min : 1.6 ms)
I I I I Non Hi-Fi I
Pin 27 Hi-Fi I I I
Hi-Fi Det Out I I I
I I I I I
I I / l /
Line Out I I I l I
l I l I
\/ s..,
Hi-Fi Audio Normal Audio Hi-Fi Audio
Smoothing Mute
The detection delay and the release delay time of Non Hi-Fi are set by the constant
in the IC.
(Note) Please set Mute with the bus at a special reproduction etc. because PB FM
Level is unstable and the Non Hi-Fi detection is unstable at that time, too.
38 2001-06-25
TOSHIBA TA1246F/AF
(Remark 16)
Procedure of test mode
This IC has three test modes for the evaluation. To enter the various test modes, the
forced voltage is impressed from the outside to the terminal. The procedure to enter
the test modes is shown as follows.
1. FM mod out (Pin 22) : L-ch/R-ch selection
(1) Initial state : The forced voltage is not impressed to any terminal.
(Especially, please make terminal 31 (Norm IN) "Open". Because the signal is
output from pin 30 when pin 31 is in the state "GND".)
(2) Bus setting : Rec mode (The FM modulation signal is output.)
(3) Impress the voltage to pin 31.
5V : L-ch FM Out (NTSC : 1.3 MHz, PAL , 1.4 MHz)
GND : R-ch FM Out (NTSC : 1.7 MHz, PAL .' 1.8 MHz)
2. Rec PNR out/PB SW N.C. out monitor (pin 30) : Monitor ON and L-ch/R-ch selection
(1) Initial state
(2) Bus setting : EE, Rec of PB (Any mode possible)
(3) Pin 31
GND : Monitor ON (L-ch monitoring at pin 30)
(4) Pin 27 (Hi-Fi Det Out)
9V : R-ch selected
39 2001-06-25
TOSHIBA
TA1246F/AF
PB BPF monitor
The BPF characteristic can be evaluated as following procedure.
Signal route : pin 25 (PB FM IN)-9BPF-opin 22 (Rec FM Out)
(1) Initial state
(2) Bus : PB mode
(3) Impress the voltage to pin 27.
9V : BPF Monitor Mode ON
(4) In the above-mentioned condition, L-ch or R-ch is selected with Bus control "FM
AGC : L-ch or R-ch" (SA No.2 D2). In addition, L-ch or R-ch can be selected from
the outside according to procedure 5).
SA No.2 D2 "0" , R-ch BPF Monitor Out
"1" : L-ch BPF Monitor Out
(5) Impress the voltage to pin 31. (The bus control of procedure 4) is not accepted.)
9V : R-ch BPF Monitor Out
GND : L-ch BPF Monitor Out
Supplement : Input level
Pin 25 (PB FM IN) : 25 mi/p-p (CM Sin Wave)
Pin 24 (FM AGC Filter) : DC 1.0V
40 2001-06-25
TOSHIBA
(Remark 17)
Method of using log amp. for just clock
TA1246F/AF
We recommend that Log Amp. of this IC is used as DC converter for the Just Clock
function. The Just Clock is a useful function that adjust the clock of VCR by micro
computer with the time signal of the TV broadcasting.
CI Just Clock mode procedure :
(1)Aux Mute ON. Bus Mute Off.
(2)Just Clock is ON by Bus control (SA No.0 D7 : "1"). Then Log Amp. input SW
terns to "B" as shown in the following figure. (Only L-ch of Log Amp. operates
at the Just Clock mode.)
Bus Cont : Just Clock is ON
r---Sw : B
Output Cir; I 1 Log Amp. (R) Out
19 dB B p'
-i>----ailgfw Log Amp.
C --------.--_--- 2c>-' ------------- (L) Out
l 9dB A
Output ----:cHy-- /Just Clock
Sig Out
------ 7 ------_
I F-er-r-t l
43 (ix, r12 4% (i
NL,':? V.V '?
Just Clock
Mute ON Line (R) Out
41 2001 -06-25
TOSHIBA TA1246F/AF
Level chart
Normal
OdB OdB 9dB
Line IN "d DC 3.3V Out
-10.2dBV
- -9.2dBV
Just clock
9d 0.8dBV
OdB OdB
Line IN C (i)
- 10.2 dBV
DC 4.7 V Out
(-20.2 dBV)
42 2001-06-25
TOSHIBA TA1246F/AF
(Remark 18) FM mod. out temperature characteristics
NTSC R-ch
9 1700
-25 0 25 50 75 100
AMBIENT TEMPERATURE (°C)
NTSC L-ch
3 1300
- 25 0 25 50 75 100
AMBIENT TEMPERATURE (°C)
43 2001-06-25
TOSHIBA
TA1246F/AF
(Remark 19) FM mod. out supply voltage characteristics
NTSC R-ch
7 8 9 IO 11 12 13
VCCH : SUPPLY VOLTAGE (v)
NTSC L-ch
7 8 9 10 11 12 13
VCCH :SUPPLY VOLTAGE (V)
44 2001-06-25
TOSHIBA
OPERATING CONDITION
Operating voltage range :
Typ. supply voltage
4.75 V~5.25 V, 8.75 V~9.25 V
: 5.0V (FM circuit), 9.0V (Audio circuit)
Supply current : Rec mode 14 mA (VCC 5V) +24 mA (VCC 9V) = 286 mW
PB mode 21 mA (VCC 5V)+26 mA (VCC 9V) = 339 mW
MAXIMUM RATINGS (Ta = 25°C)
CHARACTERISTIC SYMBOL RATING UNIT
Supply Voltage VCC 10 V
Input Terminal Voltage Ulbl VEE - 0.3~VCC + 0.3 V
Input Signal Voltage em 9 Vp-p
Power Dissipation PD (Note) 962 mW
Operating Temperature Top, -20-75 °C
Storage Temperature Tstg - 55--150 ''C
ATTENTION IN USE
ELECTRIC POWER P (mW)
THE THERMAL RESISTANCE CHARACTER-
ISTIC OF THE PACKAGE : QFP48-P-1014-0.80
50 100
AMBIENT TEMPERATURE Ta
TA1246F/AF
(1) Please do not start up the power supply of the IC while inputting the Bus control signal. Please
input the Bus control signal after standing up of the power supply.
(2) Please do not start up the power supply after applying the forced voltage to the terminals such as
pin 31 though it enters the test mode for the evaluation by applying the forced voltage.
ELECTRICAL CHARACTERISTICS (VCC high = 9V, VCC low = 5V, Ta = 25°C)
CHARACTERISTICS
BI. No.
SYM BOL
TEST CONDITION
TEST TERMINAL
MAIN-MODE
THE OTHERS
MIN. TYP.
Supply Current
Supply current at Rec 9V
mode. SV
Supply current at PB 9V
mode. 5 V
TV Gain
43, 41
——> Line Out
11, 13
Line.1 Gain
Line.1 IN
47, 45
—-> Line Out
11, 13
Line.2 Gain
Line.2 IN
39, 38
-—> Line Out
11, 13
Line.3 Gain
Line.3 IN
-> Line Out
11, 13
1.tnN.tD 33 10133195 tndinonndul
TV Distortion
(Design )
Grantee
TV Out
Max Level
”TV. Max
43, 41
—> Line Out
11, 13
Through
IN SW :
All mode
Out SW :
le (TV IN) : 1kHz, -1o.2 dBV
Measure : UOUT (Line Out)
UIN (Line.1 IN) :
1kHz, - 10.2 dBV
Measure : UOUT (Line Out)
Um (Line.2 IN) :
1 kHz, —10.2dBV
Measure : UOUT (Line Out)
UIN (Line.3 IN) :
1 kHz, — 10.2 dBV
Measure : UOUT (Line Out)
0.5 1.0
. W (N IN) : 1kHz, —10.2dBV
Measure distortion :
UOUT (Line Out)
— 0.01
le (TV IN) : 1kHz, level up
Measure : UOUT (Line Out)
at THD 1%.
7.6 8.6
TA1 2461: IAF - 46
TOSHIBA
TA1246F/AF
CHARACTERISTICS
Bl. No.
SYMBOL
TEST CONDITION
TEST TERMINAL
MAIN»MODE THE OTHERS
MAX. UNIT
Line.2 Monitor
GL2 Moni
Line.2 IN
39, 38
—> Line Out
11, 13
Line.3 Monitor
GL3 Moni
Line.3 IN
—> Line Out
11, 13
1. DIN (Line.2 IN) :
1kHZ, - 10.2 dBV
Out SW . 2. Measure : UOUT (Line Out)
Monitor
1. 0m (Line.3 IN) :
1kHz, —10.2dBV
2. MeaSure : UOUT (Line Out)
1.5 dB
N.A. Out Mix
(H. L/R Mix)
GH.N Mix1
43, 41
—> MA. Out
1. DIN (TV IN) : 1kHz, level up
2. Measure :
vou'r (Norm. Audio Out)
TV(L+R)
N.A. Out Dual
--> MA. Out
IN sw : '0'5
TV (L)
1. Um (TV IN) : 1kHz, level up
2. Measure :
UQUT (Norm. Audio Out)
1.0 dB
11W!) TI Jonalas 1ndmo-1ndUI
NA. Line.3
(SAP) Out Gain
Line.3 IN
—> N.A. Out
1. DIN (Line.3) : 1kHz, —10.2dBV
2. Measure :
UOUT (Norm. Audio Out)
IN SW:
Line3.L ‘05
0.5 dB
Norm Audio
Out Max Level
UN.Max
Norm Audio
Distortion
(Design )
Grantee
Line.3 IN
—) N.A. Out
1. U|N (Line.3) : 1kHz, level up
2. Measure : ”OUT (Norm. Audio 7.6
IN SW : Out) at THD 1/5.
L' 3.L
me 1. W (Line.3) : 1kHz, —10.2dBV
2. Measure distortion : —
vou-r (Norm. Audio Out)
TA1246FIAF - 47
TOSHIBA
TA1246F/AF
CHARACTERISTICS
BI. No.
TEST CONDITION
SYMBOL CIR-
curr TEST TERMINAL
MAlN-MODE
THE OTHERS
Norm IN Gain
Norm Audio
Output SW IN
Norm IN Max
Out Level
—> Line Out
11, 13
UNJN Max
Um (N.A.O.5W IN) :
1kHz, -10.2dBV
Measure : vou-r (Line Out)
Output select :
"Normal" mode
. On condition the same as
UIN (N.A.0.SW IN) :
1kHz level up
Measure : vou-r (Line Out)
at THD 1%.
Norm IN + Hi-Fi
Mix Gain.1
GNJN Mix1
1lnNID 33 Jonalas Indtnonndut
Norm IN + Hi-Fi
Mix Gain.2
Norm Audio
Output SW IN
— & TV IN
43. 41
—) Line Out
GNJN Mix2
Norm IN + Hi-Fi
Mix Gain.3
GNJN Mix3
le1 (N.A.O.SW 1N) :
1kHz, -10.2 dBV
UlNZ (TV IN) 2 No input
Measure : UOUT (Line Out)
Output select :
"Hi-Fi + Normal" mode
UIN1 (N.A.O.SW IN) : No
U|N2 (TV IN) :
1kHz, —10.2 dBV
Measure : vou-r (Line Out)
Output select :
”Hi-Fi + Normal" mode
U|N1 (N.A.0.SW IN) :
1kHz, — 10.2 dBV
UINZ (TV IN) :
1kHz, —10.2dBV
UOUT (Line Out)
Output select :
"Hi-Fi + Normal" mode
TA1 246F I AF - 48
TOSHIBA
TA1246F/AF
CHARACTERISTICS
Bl. No.
SYM BOL
TEST CONDITION
TEST TERMINAL
MAIN-MODE
THE OTHERS
EVR Gain
EVR Gain L / R
EVR Max Gain
GEVR Max
EVR Min Gain
GEVR Min
Distortion.1
DEVR.1
Distortion.2
DEVR.2
EVR Out Max
”EVR Max
EVR ALC Gain
GEVR Max
EVR ALC Gain
L/R Ratio
AGALc L/R
EVR ALC Level
”EVR ALC
EVR ALC
Flatness
FEVR ALC
43, 41
—-) Line Out
11, 13
Manual
EVR DC
le (TV IN) : 1kHz, -10.2dBV
EVR Vol. DC : 1.8V (Gain Typ.)
vOUT (Line Out)
u-'r\im'-'
3-1 : UOUT (Line Out)
Measure the difference at the
level of L-ch and R-ch.
”IN (TV IN) : 1kHz, —20.2 dBV
EVR Vol. DC : 4.5V (Gain Max)
”OUT (Line Out)
le (TV IN) : 1kHz, -0.2dBV
EVR Vol. DC : 0V (Gain Min)
”OUT (Line Out)
v.cou'rvie'rsirri.deirvi
vIN (rv IN) : 1kHz, —10.2dBV
EVR Vol. DC : 1.8V (Gain Typ.)
Measure distortion :
UOUT (Line Out)
U|N (TV IN) : 1kHz, -0.2dBV
EVR Vol. DC : 1.8V (Gain Typ.)
Measure distortion :
”OUT (Line Out)
DIN (TV IN) : 1kHz level up
EVR Vol. DC : 1.8V (Gain Typ.)
Measure :
UOUT (Line Out) at THD 1%.
um (TV IN) : 1kHz, -1o.2 dBV
vou-r (Line Out)
qdr,iv-:rxi
vIN (TV IN) : 1kHz, —1o.2 dBV
UOUT (Line Out)
Measure the difference at the
level of L-ch and R-ch.
le (TV IN) : 1kHz, -2dBV
”OUT (Line Out)
Ari.-'"
le (TV|N):1kHz, —2I6dBV
vou-r (Line Out)
Input two kinds of signals and
measure the difference of the
outputs.
TA1246F IAF - 49
TOSHIBA
TA1246F/AF
CHARACTERISTICS
SYMBOL
TEST CONDITION
TEST TERMINAL
MA|N~MODE
THE OTHERS
MIN. TYP.
MAX. UNIT
leuyuual
Impedance
Line IN
Measme the resistance of the
input terminal.
Pin : 1, 5. 38, 39, 41, 43, 45.
96 120
144 km
Monaural Out
Monaural Out
Distortion.1
(Design )
Grantee
DMono‘l
MonauraI Out
Distortion.2
(Design )
Grantee
DMonoz
mo Imneuow
Monaural Out
Max Level
”Mono Max
Monaural Out
ALC Level
”Mono ALC
Monaural Out
ALC Flatness
AGMono ALC
43, 41
—) Mono Out
TV L. IN
—> Mono Out
Out SW Hi-Fi
(L+ R)
Out sw Hi-Fi
le (TV IN) : 1kHz, —10.2dBV
UOUT (Monaural Out)
2.4 dB
vIN (TV L IN)
: 1kHz, —10.2dBV
Measure distortion
: ”OUT (Monaural Out)
— 0.05
um (TV L IN) : 1kHz. —o.2 dBV
Measure distortion :
UOUT (Monaural Out)
— 0.06
le (TV L IN) : 1kHz. level up
Pin 21 (Mono ALC Filter) : GND
Measure : ”OUT
(Monaural Out) at THD 1%.
6.5 7.5
le (TV L IN) : 1kHz, -4dBV
UOUT (Monaural Out)
U|N (TV L IN) :
1kHz, -4/4dBV
”OUT (Monaural Out)
Input two kinds of signals and
measure the difference of the
output at time.
1.5 dB
TA124GFIAF - 50
TOSHIBA
TA1246F/AF
CHARACTERISTICS
BI. No. ITEM
SYMBOL
TEST CONDITION
TEST TERMINAL
MAlN-MODE THE OTHERS
5-1 Log Amp 0ut.1
5-2 Log Amp 0ut.2
Log Amp Out.3
4utt tion
Log Amp IN
12, 14
—) Log Amp
15, 16
5-4 Log Amp Out.4
5-5 Log Amp Out.5
TV L IN : 43
—> Log Amp
L-ch : 15
1. 0m (Log Amp IN) : No input
2. Measure DC (V) :
”OUT (Log Amp Out)
1. 11m (Log Amp IN) :
EE 1kHz, -29.2dBV
2. Measure DC (V) :
NTSC vou-r (Log Amp Out)
1. U|N (Log Amp IN) :
1kHz, -9.2 dBV
2. Measure DC (V) :
UOUT (Log Amp Out)
1. DIN (TV L IN) :
1kHz, —20.2dBV
2. Measure DC (V) :
”OUT (Log Amp L Out)
Just Clock
1. ”IN (TV L IN) :
1kHz, —10.2dBV
2. Measure DC (V) :
UQUT (Log Amp L Out)
Aux Mute
TA1246F [AF — 51
TOSHIBA
TA1246F/AF
CHARACTERISTICS
SYMBOL
TEST CONDITION
TEST TERMINAL
MAlN-MODE
THE 0TH ERS
MAX. UNIT
'1u03 '1xa
Aux Mute ON
Threshold
Voltage
Aux Mute Cont
1. TV L IN—>Line Out : Monitor
(Confirm the output (Line
Out) signal.)
2. Raise the voltage of pin 10
from 0 (V). Measure the
voltage of pin 10 when the
signal of Line Out goes out.
Monitor ON
Threshold
Voltage
Vth27B
PB BPF Monitor
PB FM IN
—) Rec FM Out
1. Pin 31 (Norm IN) : DC 9V
BPF R-ch Out mode
2. um (PB FM IN) :
1.7 MHz, 25 mvpp
3. Pin 24 (FM AGC Filter) :
DC 1 V
Pin 27 : DC (V)
UOUT (Rec FM Out) Monitor
Raise the voltage of pin 27
from 0 (V). Measure the
voltage of pin 27 when the
signal is output to UCLIJT.
TA124GF I AF — 52
TOSHIBA
TA1246F/AF
CHARACTERISTICS
BI. No. ITEM
SYMBOL
TEST CONDITION
TEST TERMINAL
MAlN-MODE
THE OTHERS
PNR Monitor
R-ch ON
Threshold
Voltage
Vth27R
Pin 30 R-ch
Monitor
TV R IN
—> Rec PNR
Monitor
Rec FM Out
L-ch Monitor
Threshold
Voltage
‘IUOD "Vtil
Vth30L
Rec FM L/R
TV W No Input
—> Rec FM Out
Moduration
Rec FM Out
R-ch Monitor
Threshold
Voltage
Vth30R
Rec FM L/R
TV IN No Input
-—> Rec PM Out
Moduration
Pin 31 (Norm IN) : GND
Pin 30 Monitor Out mode
U|N (TVRIN) :
1kHz, — 10.2 dBV
Line Out : R-ch EE mode
Pin 27 : DC (V)
”OUT (Pin 30) Monitor
Raise the voltage of pin 27
from 0 (V). Measure the
voltage of pin 27 when the
signal of pin 30 goes out.
Pin 31 (Norm 1N) : Open
Pin 30 Cont mode
le : No input
UOUT : Pin 22 (Rec FM Out)
Monitor. (State of L/R Mix)
Pin 30 : DC (V)
Raise the voltage of pin 30
from 2.5 (V). Measure the
voltage of pin 30 when the
signal of pin 22 changes into
Pin 31 (Norm IN) : Open
Pin 30 Cont mode
le : No input
”OUT : Pin 22 (Rec FM Out)
Monitor. (State of HR Mix)
Pin 30 : DC (V)
Reduce the voltage of pin 30
from 2.5 (V). Measure the
voltage of pin 30 when the
signal of pin 22 changes into
TA1245F IAF - 53
TOSHIBA
TA1246F/AF
CHARACTERISTICS
Bl. No. ITEM
SYMBOL
TEST CONDITION
TEST TERMINAL
MAlN-MODE
THE OTHERS
BPF L-ch
Monitor
Threshold
Voltage
Vth31L
BPF L/R SW
PB FM IN
-) Rec FM Out
'1U03 '1x3
BPF R-ch
Monitor
Threshold
Voltage
Vth31R
BPF L/R SW
P8 FM IN
—-> Rec FM Out
”IN (PB FM IN) :
1.3 MHz, 25 mVp.p
Pin 24 (FM AGC Filter) :
DC 1 V
Pin 27 (BPF Moni) : DC 9V
BPF Monitor mode
Pin 31 : DC (V)
UOUT : pin 22 (Rec FM Out)
Monitor
Reduce the voltage of pin 31
from 4.5 (V). Measure the
voltage of pin 31 when the
signal of 1.3 MHz is output to
pin 22.
U|N (PB FM IN) :
1.7 MHz, 25 mVpp
Pin 24 (FM AGC Filter) :
Pin 27 (BPF Moni) : DC 9V
BPF Monitor mode
Pin 31 : DC (V)
”OUT : Pin 22 (Rec FM Out)
Monitor
Raise the voltage of pin 31
from 4.5 (V). Measure the
voltage of pin 31 when the
signal of 1.7 MHz is output to
pin 22.
PNR Monitor
Threshold
Voltage
Vth31M
Conthoni SW
41, 43
-—> 30 Monitor
e-'r,ievid
”IN (N IN) : 1kHz, -10.2dBV
Line Out : EE mode
Pin 31 (Norm IN) : DC (V)
”OUT (Pin 30) Monitor
Reduce the voltage of Pin 31
from 4.5 (V). Measure the
voltage of pin 31 when the
signal of pin 30 goes out.
TA1 245F I AF - 54
TOSHIBA
TA1246F/AF
CHARACTERISTICS TEST TEST CONDITION
SYMBOL CIR- MIN. TYP. MAX. UNIT
Bl. No. ITEM cun TEST TERMINAL MAlN-MODE THEOTHERS
1. ”IN (TV IN) :
400 Hz, — 10.2 dBV
2. Pin 31 : GND
3. Pin 27:
Open (L-ch) & 9V (R-ch)
7-1 Encode Level UEnco 4. vou'r : Pin 30 (Monitor Out) —10.5 —9.5 —8.5 dBV
Monitor
(Note) It is necessary to connect
with buffer (Voltage
follower) for measurering
pin 30.
TOSHIBA
E d L | TV IN 1. 7-1 : ”OUT (Line Out)
7-2 nco e eve Avgnco L/R EE Measure the difference at the -O.5 0 0.5
“R Ratio 41' 4?? level of L-ch and R-ch.
—’ M°"'t°' 0“" NTSC 1. um (rv IN) : 400 Hz,
30 —10.2/ -50.2dBV dB
Encode 2. v 1- (Monitor Out) Monitor
7‘3 Compress LEnco Inop'dt two kinds of signals and 17'0 18.5 20'0
measure the difference of the
outputs.
(Dan) BM
393°C? 1. 0m (TV IN) :1kHz, -10.2dBV
' ° '°" 2. Measure distortion — 0.1 0.2 %
- DEnco
DeSIgn _ ‘
(Grantee) UOUT (Monitor Out) Monitor
E d O t 1. 0m (TV IN) : 1kHz, level up
7-5 nco e u AUE M 2. Measure : UOUT (Monitor -0.7 1.3 — dBV
Max Level nco ax
Out) Monitor at THD 2%.
TA1246F/AF - 55
TA1246F/AF
CHARACTERISTICS
Bl. No.
TEST CONDITION
SYMBOL CIR-
CUIT TEST TERMINAL
MAlN-MODE
MIN. TYP.
TH E 0TH ERS
Mod Out Level
034 Mod
f0 (L) Center
Frequency
(NTSC)
fo.L NTSC
f0 (R) Center
Frequency
(NTSC)
fo.R NTSC
f0 (L) Center
Frequency (PAL)
fo.L PAL FM Out
f0 (R) Center
Frequency (PAL)
fat: PAL
(333) Pow wa
PM Out L/R
Mix Ratio.1
RMix.1
FM Out L/R
Mix Ratio.2
RMix.2
FM Out L/R
Mix Ratio.3
RMix.3
FM Out L/R
Mix Ratio.4
RMix.4
Deviation
Dev L/R
—> FM Out
DeVMod —
”IN “V IN) : No Input
Measure UOUT Pin 22 (FM Out)
0.95 1.05
1.295 1.300
”IN (TV IN) : No input
”OUT Pin 22 (FM Out)
L/R of the FM output is
switched with pin 30.
1.695 1.700
Pin 30 5V : L-ch Out
GND : R-ch Out 1395
1.795 1.800
v-'eim'st'
Rec NTSC mode 5_7 7_7
DIN (TV IN) : No input
“OUT (FM Out)
The Mix ratio of the FM output
is controlled with Bus. 8 5 0 0
Mix Ritjg.{.......... 10 12
12.5 15.0
L—ch R-ch
1 (MHz)
UIN : DC 1 0.5V
UOUT (FM Out)
Measure the frequency of the
FM output at 1'0.5V
movement.
(TA1246F)
(TA1246AF)
45.5 49.0
TA1246F/AF — 56
TOSHIBA
TA1246F/AF
CHARACTERISTICS
Bl. No.
SYMBOL
TEST CONDITION
TERMINAL
MAIN-MODE
THE OTHERS
MIN. TYP.
PB Out Level
PB Out Level
L/R Ratio
PB Out
Distortion
( Desig n )
Grantee
(gd) 1mm apoaaq
PB Out Max
UPB Max
PB Decode
Expand
FM IN (L + R)
—> Line Out
11, 13
”IN (FM IN) :
1.3/ 1.7 MHz (NTSC)
100 mVp.p (L+ R) :
50 mVp_p/ch
400 Hz, 50 kHz Dev.
Measure : vou'r (Line Out)
(TA1246F)
(TA1246AF)
- 11.6 — 10.1
. 9-1 : vou'r (Line Out)
Measure the difference at the
level of L-ch and R-ch.
-1.5 0
U|N (FM IN) :
1.3 / 1.7 MHz (NTSC)
100 mVp-p (L+R) :
50 mVp-p/ch
1 kHz, 50 kHz Dev.
Measure distortion
UOUT (Line Out)
U|N (FM IN) :
1.3/1.7 MHz (NTSC)
100 mvp.p (L + R) :
50 mVp-plch
Dev. (i kHz) up.
Measure : UQUT(Line Out)
at THD 1%
7.6 8.6
UIN (FM IN) :
1.3/1.7 MHz (NTSC)
100 mVp.p (L + R) :
50 mVp.p/ch
400 Hz, 5 k/SO kHz Dev.
"OUT (Line Out)
Input two kinds of signal and
measure the difference of the
outputs.
TA1246F IAF - 57
TOSHIBA
TA1246F/AF
CHARACTERISTICS SYMBOL TCEIET TEST CONDITION MIN TYP M x UNIT
3|. No. ITEM cun TEST TERMINAL MAlN-MODE THEOTHERS ' ' A"
1. ”IN (FM IN) :
1.3/1.7 MHz (NTSC)
Demo Max 50 mV lch
10—1 Frequency DemMax 400 HszDev. (tkHz) up. 210 240
2. Measure deviation :
FM IN ”OUT (Monitor Out) at THD
25 PB 2%.
TOSHIBA
—) Line Out 1. 0m (FM IN) :
11, 13 NTSC 1.3/1.7 MHZ (NTSC)
100 mVp_p (L+R) :
Demo Minimum 5° "NW [Ch 0.3 0.7 1.1
10-2 ”Demo Min 400 Hz, 50 kHz Dev.
Input Level 2' Measure ”IN level : (0.5 1.3 2.5)
UOUT (Monitor Out) at THD
( ) : R-ch
(8d) oweo wa
TA1246F IAF - 58
TA1246F/AF
CHARACTERISTICS
BI. No. ITEM
SYMBOL
TEST CONDITION
TEST TERMINAL
MAIN-MODE
TH E 0TH ERS
Switching Pulse
Threshold Level
l’28th
SWP IN
—> Monitor Out
UIN1 (FM IN) :
1.3/1.7 MHz (NTSC)
100 mVp.p (L+R) :
50 mVpp/ ch
FM : No Dev.
”IN : Pin 28 (SWP IN) :
1 kHz square wave. 5Vp.p.
Pin 31 : GND
vou'r (Monitor Out)
Reduce the level of pin 28.
Measure the level of pin 28
when the output disappears.
SW PuIse IN [—1 r1
5 Vp—p
Ou t SWNC
Z--_r_y_n_
Monitor Out
TA1246F IAF - 59
TOSHIBA
TA1246F/AF
CHARACTERISTICS
Bl. No.
SYMBOL
TEST CONDITION
TEST TERMINAL MAlN-MODE
THE OTHERS
NTSC L—ch
900 kHz
(f0 -400 k)
Point Gain.1
GBPF.L
NTSC L-ch
1.7 MHz
(f0 + 400 k)
Point Gain.2
GBPF.L
MIN (gg) cld ll
NTSC L-ch
1.15 MHz
(f0 — 150 k)
Point Gain.3
GBPF.L
NTSC L-ch
1.45 MHz
(f0 + 150 k)
Point Gain.4
GBPF.L
—> PM Out
1. ”IN (FM IN) : CW sin wave
25 mvp-p
2. Pin 24 (FM AGC Filter)
DC : 1V fix
3. Pin 27 (Hi-Fi Det Out)
DC : 9V BPF Monitor ON
4. Pin 31 (Norm IN)
DC : GND BPF L-ch Monitor
5. ”OUT (FM Out) Monitor
4zfo+150|<
1 (Hz)
_-----------.---) x
f 22fo+400k
1.3MH1
1:10-400
TA124GF IAF - 60
TOSHIBA
TA1246F/AF
CHARACTERISTICS
BI. No.
SYMBOL
TEST CONDITION
TEST TERMINAL
MAlN-MODE
TH E OTHERS
MIN. TYP.
NTSC R-ch
1.3 MHz
(f0 - 400 k)
Point Gain.1
GBPF.R
NTSC R-ch
2.1 MHz
(f0 + 400 k)
Point Gain.2
DSlN (8d) :ldil
NTSC R-ch
1.55 MHz
(f0 — 150 k)
Point Gain.3
NTSC R-ch
1.85 MHz
(f0 + 150k)
Point Gain.4
GBPF.R
—> PM Out
1. DIN (FM IN) : CW sin wave
2. Pin 24 (FM AGC Filter)
DC : 1V fix
3. Pin 27 (Hi-Fi Det Out)
DC : 9V BPF Monitor ON
4. Pin 31 (Norm IN)
DC : 9V BPF R-ch Monitor
5. 00m (FM Out) Monitor
32fo—150k
4zfo+150k
--------------_
1:1‘0—400k
TA1246F IAF — 61
TOSHIBA
TA1246F/AF
CHARACTERISTICS SYMBOL TcﬁgT TEST CONDITION MIN TYP M x UNIT
131. No. ITEM cun TEST TERMINAL MAIN-MODE THE OTHERS ' ' A'
pAL L-ch . UIN (FM IN) : CW sin wave
GBPF.L 25 mVrrp
(112T21210k) _ 400 2. Pin 24 (FM AGC Filter) —— —34 -24
. . PAL DC : 1 V fix
Pount Galn.1 3. Pin 27 (Hi-Fi Det Out)
DC : 9V BPF Monitor ON
:gLMLJh GBPF.L 4. Pin 31 (Norm IN)
13-2 (1; 430 k) +400 DC : GND BPF L-ch Monitor _ —38 —28
° + PAL FM IN 5. now (FM Out) Monitor
Pomt Galn.2 25 PB
— _) FM Out 3:10-15“ 4:f0+150k dB
PAL L-ch PAL _____ L _____ f ______ L---
1.25 MHz 63"” 22
13-3 -150
(f0 — 150k) PAL
Point Gain.3
1w (gd) dd8
-3.6 -1.6 0
PAL L-ch
13-4 1.55 MHz GBP1F5I6 _
(f0 4' 150 '0 PI“. 1 :10 — 4001:
Point Gain.4 1.4MHz
E 1 (Hz)
2 : fo+400k
TOSHIBA
TA1246F IAF - 62
TA1246F/AF
CHARACTERISTICS TEST TEST CONDITION
SYMBOL CIR-
Bl. No. ITEM CUIT TEST TERMINAL MAlN-MODE THE OTHERS
1. 0m (FM IN) : CW sin wave
PAL R-ch 25 v
”MHZ GBPF.R m p—p
13-5 (1; _ 400 k) -400 2. Pin 24 (FM AGC Filter)
P°.tG.1 PAL DC:1Vfix
°'" a'"' 3. Pin 27 (Hi-Fi Det Out)
PAL R h DC : 9V BPF Monitor ON
2 2 MHZ GBPF.R 4. PIn 31 (Norm IN) .
' +400 DC : 9V BPF R-ch MOHItOI’
(fo + 400 k) 5 0 FM Out Monitor
Point Gain.2 PAL F'Vés'N p3 - OUT ( )
_)FM Out 3zfa-150k 42fo+150k
PAL R-ch GBPF.R 22 PAL _____ L _____ f ______ L___
1.65 MHz
(f0 - 150 k) P150
Point Gain.3
1w (gd) Ada
PAL R-ch G
13-3 1.95 MHz 3"”
(fo+ 150k) “50 1zfo-400
Point Gain.4 PAL 1.8MH2
E 1 (Hz)
szo+400k
TA1246F IAF - 63
TOSHIBA
TA1246F/AF
CHARACTERISTICS
No. ITEM
SYMBOL
TEST CONDITION
TEST TERMINAL
MAIN‘MODE
THE OTHERS
(gd) 160 300
14'1 (NTSC L—ch)
DOC Det Level
LDOC.R
-—>FM AGC
Filter
Hi-Fi Det Out
FM AGC R-ch
. UIN (FM IN L-ch) : 1.7 MHz,
150 mVp.p (First of all)
Bus : PB FM AGC "R-ch mode”
Bus : NTSCIPAL "NTSC mode"
Pin 24 (FM AGC Filter) : V.AGC
DC (V) monitor
Reduce the level of am.
Measure the level of UN when
the voltage of V.AGC becomes
0.6V. +qu (0)
In addition, the level of ”IN is
reduced.
Mea5ure the level of ”IN when
the voltage of pin 27 becomes
H|GH.—->v|N (D)
l-Doc = 20 809 (le (D)IvIN (0))
( ):L-ch
.L.____
TA1 246F I AF - 64
TOSHIBA
TA1246F/AF
CHARACTERISTICS
BI. No.
SYMBOL
TEST CONDITION
TEST TERMINAL
MAlN-MODE
THE 0TH ERS
MIN. TYP. MAX. UNIT
(gd) 130 DOtl
DOC Det
Hyste resis
(NTSC L-ch)
HYSDOCR
Non Hi-Fi Det
Level.1
(NTSC R-ch)
”N.H1.R
1Vd (8d) '130 'AUEII'WCI !:l-IH
Non Hi-Fi Det
Leve|.3
(NTSC R-ch 3
”N.H1.R
NTSC 3dB
—>FM AGC
Filter
Hi-Fi Det Out
FM AGC R-ch
On condition that 14-1.
Raise the level of DIN.
Measure the level of am
when the voltage pin 27
becomes Low.—>le (H)
LHys = 20 fog (”IN (H)/U|N
HYS = LDOC - LHys
( ) : L-ch
(2) (5) (8) d3
FM AGC R-ch
PB FM Gain
.dr4erid
0n condition that 14-1.
Bus : FM AGC "R-ch"
le : Pin 25 (FM IN) 1.7 MHz
Reduce the level of 0m.
Measure the level of UN
when the voltage pin 27
becomes HIGH.
1.5 2.5 4.5
FM AGC R-ch
PB FM Gain
Bus PB AGC Gain "3dB"
On condition that 15-1.
DIN : Pin 25 (FM IN) 1.7 MHz
Reduce the level of 0m.
Measure the level of 0m
when the voltage pin 27
becomes HIGH.
0.8 1.8 3.2
TA1246F IAF - 65
TOSHIBA
TA1246F/AF
CHARACTERISTICS TEST TEST CONDITION
SYMBOL cm- MIN. TYP. MAX. UNIT
BI. No. ITEM CUIT TEST TERMINAL MAlN-MODE THE OTHERS
FM IN PB
Non Hi-Fi Det 25
15‘3 Out Level V33 N-H- —>FM AGC NTSC
Filter
24 FM AGC R'Ch On condition that 15-1.
Hi-Fi Det Out _ . I I I 2. UN : Pin 25 (FM IN)
15-4 Level V38 H1-F1 H1-F1 Det Out PB FM Gain 1.7 MHz, 150 mvw, — — 0-1
27 OdB 3. Measure : Pin 27 voltage.
1. 0m (FM IN) : 1.7 MHz
50 & 150 mvp.p
2. UOUT (Env Det Out)
Measure the output voltage
V41I1 NTSC when each signal is input.
PB ( ) : L-ch
Env. Det
FM IN NTSC 26 (V)
—>Env Det Out FM AGC R-ch
1. On condition that 15-1.
DIN : Pin 25 (FM IN) no input 4.1 4.3 4.5
3. Measure : Pin 27 voltage.
1.2 1.4 1.6
(0.9) (1.2) (1.5) V
Env. Det Out
15-5 Leve|.1
(gd) “130 ‘AUBI'JBG H'!H
PB FM Gain
OdB 3.2 3.5 3.8
(2.2) (3.0) (3.7)
Env. Det Out
15 6 Level.2 41.2 NTSC
Um (mVp-p)
TOSHIBA
The signal levels of these measurements are the input levels to external circuit. (It is not at a direct signal level of the terminal.)
TA1246F/AF - 66
TA1246F/AF
TOSHIBA
SETTING DF BUS & SW
EEIRec/PB
Rec Norm Out Select
Hi-Fi Select
Log/J.CloOutput Select
Auto BPF Request
Mod folBPF
PB FM Gain
PB FM AGC (Ll R)
SW N.C. Pulse Width
FM L/R Mix Ratio
TSW.1 (7pin .' WE)
TSW,2 (AUX MUTE)
TSW.3 (L.O.(L))
TSWA (L.O.(R))
TSW.5 (32pin : WE)
TSW.A (36pin)
Tswa (30pin)
Tswc (27pin)
TA1246FIAF -67
ne.3 (L)
i (LR) ' Norm
i (L) - Norm
(R) ' Norm
Line.2 Stereo
Line.2 (L)
Line.2 (R)
Linea Stereo
Linea (L)
Line.3 (R)
Manual
8.5 ps
7.0 us
8.5 dit
(A) ; Off
B : ON
IOIOIO|O\O||
IOIOIOIOIOII
IOIOIOI IOI
|O\O|O|O|O||
IOIOIOIOIOII
IOIOIOIOIOII
|O|O{O||
IOIOIOIOIOII
\OIOIOIOIOI
IOIOIOIOIOII
IOIOIOIOI
IOICMOIOIOII
IOIOIOIOIOII
IOIOIOIOIOII
\OIO!O|O|O|
IOIOIOIOIOII
|O|O|O|O\O|l
IOIOIOIO[O|
IOIOIOIOIOII
IOIOIOIOI
2-10 2-11
|O|O\||O|O|O|l
IOIOIOIOlOII
lOIOIOIOlOI
IO|O|O|O\O||
TA1246F/AF
2-12 bl3 2-14 2-15
IOIOIOIOiOII
IOIOIOIOIOII
IOIC‘IOIOIOII
IOIOIOIOIOII
IOICIOIOIOI
IOIOIOIOIOI
IOIOIOIOIOI
IOIOIOIOKOI
TOSHIBA
TA1246F/AF
EEIReclPB
Ret Norm Out Select
Hi-Fi Select
Log t LClock
Output Select
Auto BPF Request
Mod foIBPF
PB FM Gain
PB FM AGC (LIR)
SW N.C. Pulse Width
FM LIR Mix Ratio
TSW.t (7pin , WE)
TSW.2 (AUX MUTE)
TSW.3 (L.0.(L))
Tsw.a (L.O.(R))
TSW.5 (32pin : WE)
WA (36pin)
TSW.B (30pin)
TSW.C (27pin)
TA1245F I AF - 68
2-16 2-17 2-18
Cl ock
cn ' Norm
Cl - Norm
tto f Norm
Stereo
Stereo
ne.3 Cl
fOIOlO
3-10 3-11 3-12
TOSHIBA TA1246F/AF
EE/ RectPB
Rec Norm Out Select
Hi-Fi Select
Log I LCIOCR Clock
(LR) + Norm
N . Norm
(R) . Norm
Output Select
Stereo
ne.2 lit)
Stereo
Manual
Auto BPF Request
Mod folBPF
PB FM Gain
PB FM AGC (Lt R)
SW N.C. Pulse Width
FM LIR Mix Ratio
TSWA (Tpin : WE)
TSW.2 (AUX MUTE)
TSWS (L.O.(L))
TSWA (L.O.(R))
TSW.5 (32pin : WE)
/sssot (36pin)
IXXXIOIOI
Tsw.a (30pin)
IOIOIXXXIOI
IOIOIXXXI
TSW.C (27pin)
TA1246F t AF - 69
69 2001-06-25
TOSHIBA TA1246F/AF
EEIRec/PB
Rec Norm Out Select Dual
Line.3 (L)
. . Line.1
Hi-Fi Select
Log I LCIock Clock
Hi-Fi Cl
Hi-Fi (R)
Hi (LR) ' Norm
Hi (L) + Norm
Hi (R) + Norm
Output Select Norm
Line.2 Stereo
Line.2
Line.2 (R)
Line.3 Stereo
Line.3 Cl
Line.3 (R)
Manual
BPF Manual
SW N.C. Pulse Width 7.4
Auto BPF Request
Mod foIBPF
PB FM Gain
PB FM AGC (LIR)
FM LIR Mix Ratio
TSWA (7pin : WE)
TSW.2 (AUX MUTE)
TSW.3 (L.O.(L))
IOIOIOI
IOIOIOI
TSWA (L_0.(R))
IOIOIOIOI
TSW.5 (32pin : WE)
TSW.A (36pin)
TSW.B (30pin)
|O‘|\|
TSW.C (27pin)
TA1246F/ AF - 70
70 2001-06-25
TOSHIBA
EE f Rect PB
Rec Norm Out Select
Hi-Fi Select
Log fJ.Clock
Output Select
Auto BPF Request
Mod fo/EPF
PB FM Gain
PB FM AGC (LIR)
SW N.C. Pulse Width
FM LIR Mix Ratio
TSWA t7pin t WE)
TSW.2 (AUX MUTE)
TSW.3 (L.0.(L))
TSWA (L.0.(R))
TSW.5 t32pin : wo
TSWA (36pin)
TSW.B (30pin)
TSW.C (27pin)
TA1245FIAF - "
10-2 11-1 12-1
- Norm
(L) . Norm
(R) ' Norm
Stereo
Stereo
IOIOI |
| IOIOI
IOIOIOII
TA1246F/AF
IOIOIOII
TOSHIBA
EE f Rec f PB
Rec Norm Out Select
Hi-fi Select
Log / J.Clock
Output Select
Auto BPF Request
Mod fo/BPF
PB FM Gain
PB FM AGC (LIR)
13-6 13-7 13-8 14-1
Line.3 (L)
Line.2
Hi-Fi (L)
Hi-Fi (R)
Hi (LR) + Norm
Hi N + Novm
Hi IR) ' Norm
Une.2 Stereo
Line.2
Line.2 (R)
Linea Stereo
Line.3 (L)
I.ine.3 (R)
Ma nual
Manual
SW N.C. Pulse Width
FM LIR Mix Ratio
Tsw.1 (7pin : WE)
TSW.2 (AUX MUTE)
15W.3 (L.O.(L))
TSW.4 (L.O.(R))
TSW.5 (32pin : WE)
TSW.A (36pin)
TSWB (30pin)
TSMC (27pin)
TA124§F I AF - "
IOIOIOII
IOIOIOI
IIOIOIOI
TA1246F/AF
IOIOIOI
IOIOIOI
: Required, 0 2 Recommended
APPLICATION CIRCUIT
SW A Com (1)
A : 22 pin Pa BPF R—ch monitur
B : 22 pin PB BPF Lvd! “
SW A Cont (2)
Open : 30 pin Com mod. (53 :
l : 30 pin monitor mod. (S; : I)
V(c 9V
Normal Audio om
Rec PNR Out
Pa sw.N.c Out "°"i‘°'
(FL. Re: FM cu! SW
Lino] (R) IN
.1" y;
#% NI—Fl DEL 0m Hi-H Non Hi-FI
V(c 9V
SW. C 0" : 22 pin Pl BPF Monitor
5 30 pln R~ch Out (51 : R-(h)
Lint] (L) IN
EVR(R) c1 '°°"n
ts'tit
iriOl c, uxsl
Linev‘l (R) IN
Lint! (L) IN
_---.-.|
Salem”
EEIPB (R)
Output
SelectR
\‘C Bus
00:0er
l Ulll
—1~_-w
Aux Audlo
-{ Log Amp. (R) Out
A is) s 7
0.01 ,5
Cir-gr-t
TA12MF/AF-73
-—- Just Clack
Outpm : 3.5V or greater
Lino (R) Om
22 FF I 4100
TOSHIBA
TA1246F/AF
TOSHIBA TA1246F/AF
PACKAGE DIMENSIONS
QFP48-P-1014-0.80 Unit : mm
A 1e.ow.3 ,
14.thtth2
E; tlssusvnwasiosstl
:iii-39es: TD 24
LEE cm
LIE TEI Chl. co.
DI CTE $1 Fil
1:11: TE CD. er.
DI II] o Sy.
III In '-
III: In
48 III: cm 15
02H H l H H g g g g H I-
. 0.35i0.1
C(i7il
sicaca.aasacSz,=ii,il,' m
V'o.15 tiiti;
0.45:0.2
Weight : 1.47g (Typ.)
74 2001-06-25
TOSHIBA TA1246F/AF
RESTRICTIONS ON PRODUCT USE
000707EBA
OTOSHIBA is continually working to improve the quality and reliability of its products.
Nevertheless, semiconductor devices in general can malfunction or fail due to their inherent
electrical sensitivity and vulnerability to physical stress. It is the responsibility of the buyer,
when utilizing TOSHIBA products, to comply with the standards of safety in making a safe
design for the entire system, and to avoid situations in which a malfunction or failure of such
TOSHIBA products could cause loss of human life, bodily injury or damage to property.
In developing your designs, please ensure that TOSHIBA products are used within specified
operating ranges as set forth in the most recent TOSHIBA products specifications. Also, please
keep in mind the precautions and conditions set forth in the "Handling Guide for
Semiconductor Devices," or "TOSHIBA Semiconductor Reliability Handbook" etc..
OThe TOSHIBA products listed in this document are intended for usage in general electronics
applications (computer, personal equipment, office equipment, measuring equipment, industrial
robotics, domestic appliances, etc.). These TOSHIBA products are neither intended nor
warranted for usage in equipment that requires extraordinarily high quality and/or reliability or
a malfunction or failure of which may cause loss of human life or bodily injury ("Unintended
Usage"). Unintended Usage include atomic energy control instruments, airplane or spaceship
instruments, transportation instruments, traffic signal instruments, combustion control
instruments, medical instruments, all types of safety devices, etc.. Unintended Usage of TOSHIBA
products listed in this document shall be made at the customer's own risk.
0 The products described in this document are subject to the foreign exchange and foreign trade
OThe information contained herein is presented only as a guide for the applications of our
products. No responsibility is assumed by TOSHIBA CORPORATION for any infringements of
intellectual property or other rights of the third parties which may result from its use. No
license is granted by implication or otherwise under any intellectual property or other rights of
TOSHIBA CORPORATION or others.
0 The information contained herein is subject to change without notice.
75 2001-06-25
:
www.loq.com
.

Partno	Mfg	Dc	Qty	Available	Descript
TA1246AF	TOS	N/a	106	avai	HI-FI AUDIO SIGNAL PROCESSOR FOR VHS VCR
TA1246F	TOSHIBA	N/a	13	avai	HI-FI AUDIO SIGNAL PROCESSOR FOR VHS VCR