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TA1268NTOSHIBAN/a20avaiI2C BUS CONTROL NTSC 1CHIP COLOR TV IC


TA1268N ,I2C BUS CONTROL NTSC 1CHIP COLOR TV ICTA1268NTA17ERNVVI‘IZC BUS CONTROL NTSC 1CHIP COLOR TV ICTA1268N provides PIF, SIF, Video, Chroma an ..
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TA1268N
I2C BUS CONTROL NTSC 1CHIP COLOR TV IC
TOSHIBA
TOSHIBA BIPOLAR LINEAR INTEGRATED CIRCUIT SILICON MONOLITHIC
TA1268N
IZC BUS CONTROL NTSC 1CHIP COLOR TV IC
TA1268N
TA1268N provides PIF, SIF, Video, Chroma and Deflection
circuit for NTSC Color TV. TA1268N also provides Audio-
Video Switch and Text interface. TA1268N combine these
functions in a 56pin dual-in-Iine shrink-type plastic
package. 4 ----".
TA1268N realizes rationalization of various alignments f//’WW ‘,
;\\‘r">//”//T i ( f i T
"'c1e11tii,iiiiii't “m
_----"
and controls by bus control system.
FEATURES
SDlP56-P-600-1.78
Weight : 5.55g (Typ.)
PIF Circuit
0 PLL Type IF Demodulation (Bus alignment)
0 Adjustment Free AFT without Tank Coil
0 RF AGC Output (Delay point: Bus alignment)
0 Dual Time Constant Fast AGC
Video Circuit
It Black Stretcher
0 DC Restoration Circuit
0 D.L. Aperture Compensate Circuit (Bus Control)
0 Internal Filter Auto-adjust Circuit
(Fsc link type)
TEXT Circuit
It Linear RGB Input
It Cut Off/Drive Adjustment
(Bus adjustment)
0 RGB Primary Color Output
Deflection Circuit
0 Uni-color Circuit (Bus control) 0 Auto-slicer Type High Performance
0 3.58MH2 Trap Filter Circuit (Bus on/off) Sync. Separation Circuit
0 Y Delay Line Circuit 0 Adjustment Free Countdown System
Chroma Circuit 0 Sync. Separation Output
It Color Control Circuit (Bus control) It X-ray Protect Circuit
It Tint Control Circuit (Bus control) 0 Vertical Ramp Output
It B.P.F./T.O.F. Circuit (Bus select) 0 Dual Time Constant AFC Circuit
It Included ACC/Killer Filter 0 Horizontal and Vertical Position
SIF Circuit Adjustment (Bus adjustment)
0 Inter Carrier SIF System 0 Vertical Amplitude Adjustment
0 External Sound Select Switch (Bus select)
o Attenuator Circuit (Bus control)
(Bus adjustment)
TOSHIBA
BLOCK DIAGRAM
X-RAY (ii
FBP IN Cat)
Sync. OUT (i?
H. OUT (ii
H. AFC (ii
32vaco (iii
D. GND (iii
ACL (ii
EXT. VIDEO Ci)
I Sharpness
Smoothing
BLACK DET Ciii
AV/SW OUT (i,
DC REST Ca)
CHROMA IN Ci
Vcc Ci
Streatch
Restoretlon
3.58 —o/°
Contrast
, 4 8 DSDA
s'; u: D g
x' fy. C .9
ti > E Dscc
< é bl,
. :26 H.V
- _ g _M:> cc
D ' Lu
0 'jf C' D v SEPA FILTER
I - Ll =
D v. RAMP
.59 D. Vcc
V. OUT
ANALOG B IN
ANALOG G IN
ANALOG R IN
Analogue R68 |_- | V.RAMP
Cut—off I Drive
D F-BLK
@ vcxo
D APC FILTER
| AFC |
IF Vcc |_ ‘l‘
B P F Clamp
_ LU -
TV DET. OUT Ci ' I t, - 10 LOOP FILTER
T u. U)
SIF Vcc Ort,,), - l E>u :9) PIF Vcc
- cr LLI
PIF TANK (iii 8 la J Ci) PIF IN
PIF TANK (iii ':i1rss Pss Ci) PIF IN
LLD LL CY
SIF GND@-g Eé E5©PIF GND
.53 w l
LIMITER IN (ii E 23 Ci) AGC FILTER
AUDIO TV IN (ii? l Ci) SIF TANK
" Err,
DE-EMPHASIS (i? “D Ci) RF AGC
EXT. AUDIO Ci
N.c.(iii
Ci) SOUND OUT
TA1268N
TOSHIBA
TERMINAL FUNCTION
TA1268N
PIN NAME
FUNCTION
INTERFACE CIRCUIT
Sound Output
This terminal is for Sound
Output.
The maximum flew out
current of these terminals is
3.6mA. So, the minimum load
register is 1kQ.
Attenuator
RF AGC
This terminal is for RF AGC
output.
Monitor
SIF Tank Coil
This terminal is for connecting
SIF detect tank coil.
This terminal is for Sound
Mute Switch, too.
If this terminal is connected to
GND, the sound output is
muted.
AGC Filter
This terminal is for PIF 2nd
AGC filter.
Ir RF AGC AGC
Amplifier
PIF GND
This terminal is for GND of PIF
circuit.
PIF Input
This terminal is for f input.
The typical input value is
90dBpV.
TOSHIBA
TA1268N
ll) PIN NAME FUNCTION INTERFACE CIRCUIT
9 PIF VCC T.his Itermlnal IS for VCC of PIF -
circuit.
—._ 69
APC Detection
. This terminal is for PIF PLL soon
10 Loop Filter loop filter. Co) ss-):
ia ai(ii)
Thi t . li f APCfilt (i)) I 300Q
. e a - NN
11 AFC Filter IS "l'] f; or ier S, a
of fsc oscillation. m I', -I
(éKiller f
12 VCXO 131.i,ii2Cz1',Itaiif X'tal of
13 GND ElusDjmrminal is for V/C/D -
14 Fast Blanking This terminal is for fast
blanking of RGB input.
TOSHIBA
TA1268N
ll) PIN NAME FUNCTION INTERFACE CIRCUIT
15 These terminals are for RGB
16 Analog RGB Input . .
signal input.
. . This terminal is for VCC of
18 Digital VCC digital circuit.
19 These terminals are for RGB
20 RGB Output . .
21 primary color signal output.
. Thi . I . f rti I
22 Vertical Output IS termma IS or ve Ica
pulse output.
C4) ai I
(is) 5k§v2_ SkO 'ii.
23 These terminals are for NFB Tr O 1:
24 NFB, Vertical Ramp. input and vertical ramp
output. @ <
N t' RGBBIanking
TOSHIBA
TA1268N
No PIN NAME FUNCTION INTERFACE CIRCUIT
fig? -(is)
1000 r''.
cis)- - rN
25 1frtical.synf.. This terminal is tr vertical li, HQ
Separation Filter sync. separation filter. 7: e (i);
m . '" (i))
This terminal is for VCC of
26 H. VCC horizontal circuit.
< [.t..j, < 5
ti, :1
27 These terminals are for input SCA 1kQ iiA-
SDA 1009
28 SCL, SDA and output of " Bus. 'j,7,0-'
SDA it
Only T)
This terminal is for input of X-
RAY protect circuit.
The threshold voltage is 3.5V
(Typ.). If this terminal is
29 X-RAY applied the voltage that is
more than threshold voltage,
the X-RAY protect circuit
make horizontal output a low.
This terminal is for Fly-back
Pulse input.
The FIy-back Pulse is the
30 Fly-back Pulse Input reference of AFC circuit, gate sy"
pulse and so on. h,
The current needs to keep a
under 1mA. t,
* Fly-bvack Pulse Phase ' (YD
h I f I W 'f-a)
T . . . . se
31 Sync. Pulse Output IS termina IS or Sync pu 30m
output.
TOSHIBA
TA1268N
PIN NAME
FUNCTION
INTERFACE CIRCUIT
Horizontal Output
This terminal is for horizontal
pulse output.
H. AFC
This terminal is for horizontal
AFC filter.
The AFC circuit fits the phase
between inputted horizontal
sync. signal and horizontal
pulse which is made by
countdowning 32fH.
32fH VCO
This terminal is for connecting
ceramic oscillator. That
constitutes 32fH (503kHz)
oscillation circuit.
The CSBLA503KECZF30
(Murata) is recommended.
D. GND
This terminal is for GND of
digital circuit.
A.B.L.
This terminal is for A.B.L.
circuit.
TV Input
This terminal is for input of
PIF detected signal. The typical
input amplitude is 1.0Vp-p.
TOSHIBA
TA1268N
R'C',“ PIN NAME FUNCTION INTERFACE CIRCUIT
38 A.C.L. This terminal is for ACL circuit. 1kQ on'
'- 10m
lr < It" < l >
Q. Q, a 39 External Video Input This termihal IS for input of
external video signal.
. This terminal is for filter of
40 Black Peak Detection black peak detection.
This terminal is for output of
video switch which selects TV
41 Video Switch Output signal or external video.
Amp. Gain ; Min. 1.7
Typ. 1.9, Max. 2.1
. This terminal is for filter of
42 D. .R
C estoratlon APL detection.
TOSHIBA
TA1268N
PIN NAME
FUNCTION
INTERFACE CIRCUIT
Y Input
This terminal is for Y signal
input.
The typical input amplitude is
1.0Vp-p.
A.F.T.
This terminal is for AFT
output.
Monitor signal output mode
can be selected via Bus.
Bo B1 OUTPUT
TEST purpose only
_|_\oo
RFAGC / 2
Chroma Input
This terminal is for
chrominance signal input.
The typical input signal
amplitude is 286mVp-p (at
burst signal).
This IC is to go to test mode
with this terminal voltage
higher than 4.5V.
V/C/D VCC
This terminal is for VCC of
video, Chroma and Deflection
circuit.
TV Detection Output
This terminal is for PIF
detected signal output.
S.1.F. Vcc
This terminal is for VCC of SIF
circuit.
TOSHIBA
TA1268N
circuit.
No PIN NAME FUNCTION INTERFACE CIRCUIT
These terminals are for x 1 £2 Lg
connecting a tank coil of PIF (ii) u; ar
49 detection circuit.
50 P.l.F. Tank Coil TOKO Corp. products ai) V
292GJAS-7475BS (45.75MH2),
292GJAS-7476BS (58.75MHz) E 1r Cg
are recommended. m
51 S.l.F. GND This terminal IS for GND of SIF -
52 Limiter Input
This terminal is for input of
SIF limiter amplifier circuit.
TV Audio Signal
53 Input
This terminal is for input of
SIF detected signal.
This terminal is connected to
pin 54 via capacitor.
Audio Switch
54 De-emphasis
This terminal is for filter of
SIF de-emphasis.
55 External Audio Input
These terminals are for
external audio input.
Audio Switch
3V 235k!)
TOSHIBA TA1268N
Slave address : 88H
ADSDLEESS D7 D6 D5 D4 D3 D2 D1 D0 PRESET
00 Trap Color 0000 i 0000
01 c. Filter Tint 1100 i 0000
02 A. sw Brightness 0000 i 0000
03 BLK Uni-color 0000 5 0000
04 Mute I Sharpness 0110 l 0000
05 Vertical Phase Horizontal Phase 0001 i 0000
06 Bo B1 Audio Attenuator 0000 i 0000
07 B2 B3 DON'T USE (Fix on 100000) 0010 i 0000
08 B4 v. sw RF AGC 0000 i 0000
09 AFC WPL Vertical Amplitude 0010 i 0000
DA V. Fixed PIF VCO 0100 g 0000
OB R Cut Off 0000 l 0000
oc G Cut Off 0000 l 0000
0D B Cut Off 0000 i 0000
OE G Gain 0000 i 0000
OF B Gain 0000 i 0000
FUNCTION RANGE (MIN.--MAX.) DEFAULT
Color -60--0dB -60dB
TINT *42'' 0°
Brightness 1.34--2.6--3.86V 1.34V
Uni-Color -24-0dB -24dB
Sharpness -18-6dir-14dB (4MHz Gain) 6dB
Audio ATT -85--6dB -85dB
RF AGC 65dBpe-105dBpV (0.6dB/bit), 000000 : f Mute IF Mute
Ver. Amplitude 1.6~2.4V Center
PIF VCO i2.2MH2 (35kHz/bit) Center
RGB Cut-off -0.4-0.4V -0.4V
GB Gain -3.1--3.ldB -3.1dB
TOSHIBA TA1268N
FUNCTION RANGE (MIN.--MAX.) DEFAULT
3.58 Trap (0) : On/(1) : Off On
Chroma Filter (0) : Band Pass Filter/(1) : Take Off Filter TOF
A, V SW (0) : TV Mode/(1) : EXT. Mode TV
BLK (0) : BLK On/(1) : BLK Off On
MUTE (00) : Off/(01) : Y MUTE/(10) : Hout Stop/(11) : Y MUTE+V Stop (01)
H. AFC (0) : AFC2 Normal/(1) :AFC2x3 (0)
WPL (0) : On/(1) : Off Off
V. Fixed Mode (0) : Normal/(1) : V Frequency 60Hz Fix Normal
Pin 44's output is selectable. AFT
Bo, B1 (Monitor) (00) : AFT Voltage/(01) : Test Mode/(10) : Blue Output/ Volta e
(11) : Half of RF AGC Voltage g
Bit, B3, B4 Bits for Test Mode. (000)
(Test Mode) Use this IC with these bits (000).
Read Mode
D7 D6 D5 D4 D3 D2 D1 D0
POR AFT IF Lock AFT Killer V Lock H Lock X-RAY
FUNCTION CONTENTS
POR (Power On Reset)
(0) : SECOND/(1) : FIRST
AFT Refer to Following Figure
IF LOCK (0) : LOCK OUT/(1) : LOCK IN
Killer (0) : Killer ON/(1) : Killer OFF
V LOCK (0) : LOCK IN/(1) : LOCK OUT Det. Window : 262H--263H
H LOCK (0) : LOCK OUT/(1) : LOCK IN This function is forced to unlock at Vp, so
data is valid after 50H.
X-RAY (0) : X-RAY OFF/(1) : X-RAY ON
C) Vertical Phase (3bit)
This mode is for changing vertical output timing.
(Vertical picture position is changed 0~7H as right Table.) D7 D6 D5 MODE
C) Horizontal Phase (5bit) 0 O 0 Reference
This mode is for changing horizontal picture position. 0 0 1 1H Delay
Horizontal output phase is changed i3ys as maximum. 0 1 0 2H Delay
0 1 1 3H Delay
C) AFT Read Bus 1 0 0 4H Delay
33v 1 0 1 5H Delay
W AFT 1 1 0 6H Delay
l .. I 1 1 1 7H Delay
-i-1 " _ D6
t-."I ! D4
TOSHIBA TA1268N
12C BUS CONTROLLED FORMAT SUMMARY
Bus controlled format of TA1268N is based on IZC Bus Control format of Philips.
Data Transfer Format
I S l Slave address l O l A l Sub address l A l Data l A l P I
I 7bit I 8bit I 8bit
MSB MSB MSB
S : Start Condition
P .' Stop Condition
A : Acknowledge
(1) Start and Stop Condition (2) Bit Transfer
___ .l
Start Condition Stop Condition l / I
SDA cannot change. I
SDA can change.
(3) Acknowledge (4) Slave Address
from Master l E --_'X:Wme A6 A5 A4 A3 A2 A1 A0 R/W
SDA l I -
E High Impedance N I
from Slave
from Master N ( A I 8 N I 9 N
Purchase of TOSHIBA IZC components conveys a license under the Philips PC Patent Rights
to use these components in an " system, provided that the system conforms to the "
Standard Specification as defined by Philips.
13 2003-01-15
TOSHIBA TA1268N
MAXIMUM RATINGS (Ta = 25°C)
CHARACTERISTIC SYMBOL RATING UNIT
Power Supply Voltage VCC 12 V
Power Dissipation PDmax 2.19 (Note 1) W
Input Terminal Voltage Vin GND-thr-N/cc-ro.? V
Input Signal Amplitude ein 4 Vp-p
Operating Temperature Top, - 20~65 "C
Storage Temperature Tstg - 55~150 °C
(Note 1) When using the device at above Ta=25°C, decrease the power dissipation by
17.5mW for each increase of 1°C.
(Note 2) As this IC is weak in a surge voltage, handle it with care from being damage.
RECOMMENDED OPERATING CONDITION
CHARACTERISTIC SYMBOL MIN. TYP. MAX. UNIT REMARKS
PIF Power Supply Voltage Vccp 8.5 9.0 9.5 V -
SIF Power Supply Voltage VCCS 8.5 9.0 9.5 V -
V/C/D Power Supply Voltage VCCV 8.5 9.0 9.5 V -
HA/CC Power Supply Voltage H.Vcc 8.5 9.0 9.5 V -
DA/CC Power Supply Voltage D.Vcc 2.7 3.3 3.8 V -
TV External Video Input Level Vin37/39 - 1.0 - Vp-p including sync.
Standard Video Input Level Vin43 - 1.0 - Vp-p including sync.
Standard Chroma Input Level Vin45 - 286 - mi/p-p at burst signal
FBP Width TFBp 10 12 - #5 vth = 1.4V, Vcc- 1.4V
FBP Input Flow In Current IFBpmax - - 2 mA -
PIF Output Load Resister ROP 2 8.2 - k0 -
SIF Output Load Resister Ros 1 8.2 - kn -
RGB Output Load Resister RORGB - 1.8 - k0 -
Horizontal Output Load Resister RHOUT 330 800 - n maximum 10mA
Vertical Output Load Resister RVOUT 4.1 5.7 - k0 -
Sync. Separation Output Flow In I - - 1 mA -
Current syncmax
14 2003-01-15
TOSHIBA TA1268N
ELECTRICAL CHARACTERISTICS
DC characteristics (Unless Otherwise Specified, VCC=9V, H. Vcc=9V, Ta =25°C)
il,'ll)l. CHARACTERISTIC SYMBOL E315}: TEST CONDITION MIN. TYP. MAX. UNIT
2 Sound Output V2 - - 3.20 3.70 4.20 V
3 RF AGC V3 - - - 0.00 0.50 V
5 AGC Filter V5 - - 7.00 7.50 8.00 V
6 PIF GND GND - - - 0.00 - V
7 PIF Input V7 - - 1.50 2.00 2.50 V
8 PIF Input V8 - - - 0.00 0.50 V
9 PIF VCC Vcc - - - 9.00 - V
10 Loop Filter V10 - - - 4.50 - V
11 APC Filter V11 - - 6.00 6.50 7.00 V
12 vcxo v12 - - 5.30 5.80 6.30 v
13 V/C/D GND GND - - - 0.00 - V
14 F-BLK v14 - - - 0.00 - v
15 Analog R Input V15 - - 4.40 4.90 5.40 V
16 Analog G Input V16 - 4.40 4.90 5.40 V
17 Analog B Input V17 - - 4.40 4.90 5.40 V
18 D. VCC VCC - - - 3.30 - V
19 R Output V19 - BRT, C. 0 Cent 2.40 2.70 2.90 V
20 G Output V20 - BRT, C. 0 Cent 2.40 2.70 2.90 V
21 B Output V21 - BRT, C. o Cent 2.40 2.70 2.90 V
25 V SEPA V25 - - 5.80 6.30 6.80 V
26 H. Vcc V25 - - - 9.00 - V
27 SCL v27 - - 4.50 5.00 5.50 v
28 SDA v28 - - 4.50 5.00 5.50 v
29 X-RAY v29 - - - 0.00 - v
33 H. AFC v33 - - 7.00 7.50 8.00 v
34 32fH vco v34 - - 5.50 6.00 6.50 v
35 D. GND GND - - 0.00 - V
36 ABL v35 - BRT, COL Cent 2.90 3.40 3.90 v
37 TV Input V37 - 2.90 3.00 3.90 V
38 ACL V38 - BRT, COL Cent 2.90 3.40 3.90 V
15 2003-01-15
TOSHIBA TA1268N
Elgi- CHARACTERISTIC SYMBOL ESE: TEST CONDITION MIN. TYP. MAX. UNIT
39 EXT. Video Input V39 - - 1.10 1.60 2.10 V
40 Black DET V40 - - 6.10 6.60 7.10 V
41 AV/SW Output V41 - - 1.80 2.30 2.80 V
42 DC Rest V42 - - 5.50 6.00 6.50 V
43 Y Input V43 - - 4.00 4.50 5.00 V
44 AFT V44 - - 2.00 2.50 3.00 V
45 Chroma Input V45 - - 1.60 1.85 2.10 V
46 V/C/D VCC V46 - - - 9.00 - V
47 TV DET. Output V47 - - 4.70 5.20 5.70 V
48 SIF VCC VCC - - - 9.00 - V
51 SIF GND VCC - - - 0.00 - V
52 Limiter Input V52 - - - 0.00 0.50 V
53 Audio TV Input V53 - - 2.50 3.00 3.50 V
54 De-emphasis V54 - Pin 4 GND 4.00 4.50 5.00 V
55 EXT. Audio Input V55 - - 2.50 3.00 3.50 V
Current Consumption
CHARACTERISTIC SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT
f Power Supply Current lcci - 32.8 46 52.0 mA
V/C/D Power Supply Current Iccv - 52.7 71 76.8 mA
H-VCC Power Supply Current Icch - 10.7 14 18.4 mA
D.Vcc Power Supply Current 'ccq - 5.2 10 11.6 mA
16 2003-01-15
TOSHIBA TA1268N
AC characteristics (Unless Otherwise Specified, Vcc=9V, H. vcc=9v, Ta =25°C)
CHARACTERISTIC SYMBOL CIR- TEST CONDITION MIN. TYP. MAX. UNIT
. v01 1.7 2.0 2.3
- N t 1 V -
Video Detected Output Level V02 ( o e ) 2.0 2.5 3.0 p p
VIN MIN - 42 -
. . . - N 2
Input Sensitivity VINMAX ( ote ) 100 107 - dB/A/
Sync Tip Level VSYNC - (Note 3) 2.6 2.9 3.2 V
Output Level For No Input " - (Note 4) 4.8 5.2 5.6 V
Differential Gain DG (Note 5) - 2 5 %
Differential Phase DP - - 2 5 19
PIF Output Frequency
Characteristic fc - (Note 6) 5 7 - MHz
Carrler Wave Compression CR 50 55 -
2nd Harmonics Com ression - (Note 7) dB
. p HR 50 55 -
PIF In ut Resistance R; - 1.5 - kn
P . IPIF - (Note 8)
PIF Input Capacitance Cip”: - 3.8 - pF
S/N S/N - (Note 9) 52 55 - dB
920kHz Beat 1920 - (Note 10) 42 45 - dB
IF AGC Range RWAGC - (Note 11) 61 65 69 dB
VSMEAN 4.2 4.5 4.8
IF AGC Voltage V5MAX - (Note 12) 7.4 7.6 - V
V5MIN - 3.8 -
V 7.7 .2 -
RF AGC Voltage 3MAX - (Note 13) 8 V
V3MIN - 0 0.5
RF AGC Control Range AGRFAGC - (Note 14) 35 40 dB
AFT Center Voltage V4CENT - (Note 15) 2.2 2.5 2.8 V
AFT Voltage V4MAX - (Note 16) 4.4 4.8 - v
V4MIN - 0.2 0.5
AFT Sensitivity #AFT - (Note 17) - 40 - kHz/V
AFT Output Resistance RAFTOUT - (Note 18) 40 50 60 k0
PIF VCO Control Sensitivity /hFuco - (Note 19) 2.0 2.5 - MHz/V
PIF VCO PulI-in Range fph - (Note 20) 1.0 1.5 - MHz
fy 1.0 1.5 -
PIF VCO Control Range AfPIFVCO - (Note 21) - 4.4 - MHz
17 2003-01-15
TOSHIBA TA1268N
CHARACTERISTIC SYMBOL CIR- TEST CONDITION MIN. TYP. MAX UNIT
V 400 500 600 mV
Sound Output Level AAC - (Note 22) rms
VADC - 4.5 - V
Sound Distortion VAUDIO - (Note 23) - 0.3 1.0 %
AMR AMR - (Note 24) 50 60 - dB
Limiting Sensitivity VLIM - (Note 25) - 35 - dB/A/
Sound Ogtput Frequency fAUDIOH - (Note 26) - 130 - kHz
Characteristics fAUDIOL - - 130 -
Sound Output Resistance RSOUT - (Note 27) 24 30 36 k0
GATTMAXE - 2.0 0.0 2.0
ATT Gain GATTMAXT - (Note 28) 4.0 6.0 8.0 dB
GATTMEAN -15 -12 - 9
GATTMIN -99 -85 -
DC Voltage Drift V2VAR - (Note 29) - - 50 mV
1/2DC 3.2 3.7 4.2 v
Ri53 - 30 -
Input Impedance - (Note 30) k0
Ri55 - 47 -
Input Impedance Ri41 - (Note 31) 100 - - k0
Input Dynamic Range Vdi41 - (Note 32) 1.0 1.2 1.5 V
Video Total Gain GY - (Note 33) 4.5 5.0 -
Video Frequency
- 6.0 . -
Characteristic fy (Note 34) 7 0 MHz
Maximum Output Vdo1 - (Note 35) 7.5 8.0 - V
Black Expansion Amp. Gain GBAMP (N t 36) 1.18 1.43 1.68
Black Expansion Start Point GBSTP - o e 40 50 60 IRE
DC Restoration TDC - (Note 37) 100 103 105 %
GSHcent 1 4 7
Sharpness Control
Characteristics GSHmax - (Note 38) 9 12 15 dB
GSHmin - - 18 - 15
Sharpness Delay Time tSHDLY - (Note 39) - 125 - ns
- 4. 7.
Contrast ICo-ntrol GCNcent (Note 40) 5 6 5 dB
Characteristics GcNmin - 22.5 24 28.5
H.V-BLK Output Voltage VBLK - (Note 41) - 0.7 1.0 V
V-BLK Width TVBLK - (Note 42) - 3.5--24 - H
fsc Trap Gain GTRAP - (Note 43) - -28 -20 dB
18 2003-01-15
TOSHIBA TA1268N
CHARACTERISTIC SYMBOL CIR- TEST CONDITION MIN. TYP. MAX. UNIT
OSD Switching Voltage VthOSD - (Note 44) 0.7 1.0 1.3 V
OSD Delay Time tOSDDLY - 15 30
OSD D01ay Tlime Difference tOSDD - (Note 45) - 5 10 ns
OSD Rising Time rR - 15 30
OSD Falling Time rF - 15 30
Input Clamp Voltage VOSDC - (Note 46) 4.4 4.9 5.4 V
OSD Gain GOSD - (Note 47) 1.8 2.0 2.2
Input Dynamic Range VdiOSD (Note 48) 2.0 2.2 2.4 V
Cutoff Drive
. VBRTmax 3.6 4.0 4.3
Brightness Control
Characteristics VBRTcen (Note 49) 2.4 2.7 3.0
VBRTmin 1.0 1.4 1.7
Brightness Control Difference
Between 3Axes AVRGB - (Note 50) -50 0 50 mV
Vcutmax 0.5 0.65 0.8
Cutoff Control Characteristics Vcutcen - (Note 51) - 0.00 - V
Vcutmin -0.8 -0.65 -0.5
Drive Control Characteristics Gdrvmax - (Note 52) 3.75 4.25 4.75 dB
Gdrvmin -4.0 -3.5 -3.0
Chroma
Input Dynamic Range Vdi45 - (Note 53) 0.95 1.5 1.7 V
ea -23 -20 - 17 dB
ACC Characteristic eb - (Note 54) 3 6 9
A 0.9 1.0 1.1
Killer Point EK - (Note 55) -48 -46 -43 dB
VCXO Frequency Control + +
Range Afvcxo - (Note 56) -500 -+600 - HZ
VCXO Frequency Control
Sensitivity /9ucxo - (Note 57) - 1.0 - Hz/mV
VCXO PuII-in Range fVCXOPL - (Note 58) A300 i450 - Hz
D d I t R I ti Gai R/B 0.78 0.83 0.88
emo u a e ea Ive In G/B (N t 59) 0.31 0.35 0.39
D d lat R lati Ph R-B - o e 84 91 98 Cr
emo u e e we ase G-B 233 240 247
ECR - 20 40
Carrier Wave Remain ECB - (Note 60) - 20 40 mVp p
ECG - 20 40
19 2003-01-15
TOSHIBA TA1268N
CHARACTERISTIC SYMBOL CIR- TEST CONDITION MIN. TYP. MAX. UNIT
Color Control Characteristic GCLRcen - (Note 61) 4.5 6 7.5 dB
GCLRmin 38 40 -
i.. G 4.5 6 7.5
Uni color.C6ntro| UNIcen - (Note 62) dB
Characteristic GUNImin 22 24 26
"NTcen -7 0 7
TINT I h . . - N o
Contro C aracteristic ABTNT ( ote 63) 135 145 LF55
Video Chroma Delay Time tV-C - (Note 64) -30 0 30 ns
Deflection
Horizontal Free Run Freq. fH - (Note 65) -100 0 100 Hz
H. Out Pulse Duty TH - (Note 66) 38 41 44 %
H. Out Voltage VHL - (Note 67) - 0.2 0.3 V
VHH 2.5 3.0 3.5
VCO Osc. Start Voltage VOSCmin - (Note 68) 3.0 3.5 4.0 v
H. Out Start Voltage VHST - (Note 69) 3.7 4.0 - V
H. Frequency Control Range AfH - (Note 70) i500 i650 - Hz
H. Freq. Control Sensitivity /3H - (Note 71) - 500 - Hz/V
H. Sync. PuII-in Range AfHPUL - (Note 72) i450 1500 - Hz
H. PuII-in Stop Period THSTP - (Note 73) - 3332 - H
AFC-2 Control Range TAFCZ - (Note 74) 16 17 - ps
Horizontal Position
T - N 7 - i3 - s
Adjustment PAFC2 ( ote 5) [J
X-RAY Protection Detection
Voltage VXDET 3.35 3.5 3.65 V
X-RAY Protection Hold
V - N 7 . 4.2 4.
Voltage XHLD ( ate 6) 3.9 5
X-RAY Protection Hold
Current VXLD 80 100 120 PA
Vertical Free Run Freq. fV - (Note 77) - 295 - H
V. Sync. PulI-in Range TVST - (Note 78) - 224 - H
TVEND - 295 -
V. Out Pulse Width TV - (Note 79) - 8 - H
V. Ramp Amplitude Control VVL - (Note 80) 2.2 2.4 - V
VVH - 1.6 1.8
H. Sync. Separation Level Rsepa - (Note 81) 30 35 40 %
Forced V. Osc. (262.5H) fV60 - (Note 82) - 60 - Hz
20 2003-01-15
TEST CONDITION
NOTE ITEM
TEST CONDITION (VCC = 9V, Ta = 25i3°C)
BUS MODE
(08) (0A)
MEASUREMENT METHOD
1 Video Detected
Output Level
(20) —
(1)App|y the IF signal. (f0=45.75MHz, 87.5% AM,
31.6mVrms) t0 IF input.
(2) Measure the output signal level at pir _| L l.l L‘I—
47' (V01) -_~—8-7‘45:/6
(3)App|y the signal (100% AM, W/LIJ—
31.6mVrm5) to IF input.
(4) Measure the output signal level pin 47. (V02)
2 Input Sensitivity
(1)App|y the signal (f0=45.75MH2, 30% AM, 31.6mVrm5)
to 1F input. <
(2) Decrease input signal level. Measure the input signal
level at IF input, when output signal level at pin 47
decreases as —3dB level. (VIN MIN)
(3) Increase input signal level. Measure the input signal
IeVei at IF input, when output signal level at pin 47
increases as +0.5dB level. (VIN MAX)
3 Sync. Tip Level
(1)App|y the signal (f0=45.75MH2, 31.6mVrm5, Non
modulation) to IF input.
(2) Measure the DC voltage at pin 47 (VSYNC)
4 Output Level for
No Input
(1) Non IF input
(2) Apply 3.0V at pin 5.
(3) Measure the DC voltage at pin 47. (VIP)
5 Differencial Gain
Differencial Phase
(”Apply the IF signal (f0=45.75MHz, 87.5% AM Video) to
IF input.
(2) Measure the differencial gain and phase at pin 47.
TA1268N—21
TOSHIBA
TA1268N
TEST CONDITION
(VCC = 9V, Ta = 25i3°C)
BUS MODE
(08) (0A)
MEASUREMENT METHOD
PIF Output
Frequency
Characteristics
(20) —
(1)Same as Note 3 (1)
(2) Fix the voltage at pin 5.
(3)App|y the signal as follows to IF input,
f0=45.75MHz 31.6mvrm5
f1=45.65~32MHz 3.15mvrms
(4) Measure f1 frequency, when the output level at pin 47
becomes "3dB.
fc=f0—f1
Carrier Wave
Compression Ratio
2nd Harmonics
Compression Ratio
(1) Apply the signal (fo=45.75MH2, fm=15.75kHz, 78%
AM, 31.6mv,_ms) to IF input.
(2)Apply the voltage at pin 5 so that output level of pin
47 becomes 2Vp.p.
(3) Measure the leak level of carrier wave at pin 47 when
non modulation IF signal is inputted.
CR=20€og (2(Vp.p)/the leak level of carrier wave
(mVrms))
(4) Measure the leak level of 2nd harmonics in the same
HR=20€og (2(Vp_p)/the leak level of 2nd harmonics
(mVrms))
PIF Input Resistance
PIF Input
Capacitance
(1)App|y 3.0V to pin 5.
(2) Measure the impedance between pin? and 8.
(1) Same as Note 2 (1)
(2) Measure output level at pin 47 (VA)
(3)Same as Note 3 (1)
(4) Measure output level at pin 47 (V8)
S/N=20€og (VA/VBXG)
TA1268N-22
TOSHIBA
TA1268N
TEST CONDITION (vcc=9v, Ta=2si-3°C)
BUS MODE
(06) (07) (08)
MEASUREMENT METHOD
920kHz Beat
(00) (20) (20)
(1) Apply the signals as follows to IF input,
f0 =45.75MH2 31.6mvlrms
fc=42.17MHz 10.0mvrms
f5=41.25MH2 10.0mvrms
(2)App|y the voltage so that the lowest of the output at
pin 47 is equal Vsync‘
(3) Measure the difference between fc and 920kHz beat.
IF AGC Range
RWAGc = VINMAX—VINMIN
IF AGC Voltage
(1)5ame as Note 3 (1)
(2) Measure the voltage at pin 5. (VSMEAN)
(3) Measure the voltage at pin 5 when no input. (VSMAX)
(4) Measure the voltage at pin 5 when input signal level is
178mVrms (V5M|N).
RF AGC Voltage
(1) Same as Note 3 (1)
(2) Adjust the data of sub-address (08) (RF AGC) so that
the voltage at pin3 become 4.5V.
(3) Measure the voltage at pin3 when no input. (VBMAX)
(4) Measure the voltage at pin3 when input signal level is
178mVrms (V3MIN)-
TA1268N-23
TOSHIBA
TA1268N
NOTE ITEM
TEST CONDITION (VCC = 9V, Ta = 25i3°C)
BUS MODE
(08) (0A)
MEASUREMENT METHOD
14 RF AGC Control
Ad- ..
(1)Same as Note 3 (1)
(2) Set the data of sub-address (08) to (00). Decrease the
IF input level. Measure the IF input level, when the
voltage of pin 3 become 4.5V. (VRFMIN)
(3) Set the data of sub-address (08) to (3F). Measure the IF
input level, when the voltage of pin 3 become 4.5V.
(VRFMAx)
AVRFAGc=VRFMIN—VRFMAX
15 AFT Center
Voltage
(20) T
(1)No IF input
(2)Apply 3.0V t9 pin 5.
(3) Measure the voltage at pin 44. (V4CENT)
16 AFT Voltage
(1)App|y the signal (f=44.75MHz, 30% AM Video,
31.6mVrm5) to IF input.
(2) Measure the output signal level at pin 44. (V4MAX)
(3)App|y the signal (f =46.75MH2, 30% AM Video,
31.6mVrmS) to IF input.
(4) Measure the output signal level at pin 4. (V4MIN)
17 AFT Sensitivity
(1) Same as Note 3 (1)
(2) Measure the voltage change at pin44 when input
frequency is changed. (Af/AV)
18 AFT Output
Resistance
Measure the output impedance of pin 44.
TA1268N-24
TOSHIBA
TA1268N
NOTE ITEM
TEST CONDITION (Vcc=9V, Ta=25i3°C)
BUS MODE
(06) (07) (08) (0A)
MEASUREMENT METHOD
19 PIF VCO Control
Sensitivity
(00) (20) (20) —
(1)App|y the signal (f=45.75MH2, 31.6mVrms, CW) to |F
input.
(2) Measure the DC voltage at pin 10. (V10A)
(3)App|y the signal (f=45.55MH2, 31.6mVrm5, CW) to IF
input.
(4) Measure the DC voltage at pin 10. (V108)
BIFVCO = 0.2 (MHz)/(V1OB—V10A) (V) [MHz /V]
20 PIF VCO Pull—in
(1)App|y the signal (f=45.75MHz, 31.6mvrm5, CW) to lF
input.
(2)0bserve output signal at pin 47 and change the IF
input frequency from higher to lower. Measure the IF
input frequency when PLL is locked. Calculate the
frequency difference between above frequency and
45.75MHz. (fph)
(3)0b5erve output signal at pin 47 and change the IF
input frequency from lower to higher. Measure the IF
input frequency when PLL is locked. Calculate the
frequency difference between above frequency and
45.75MH2. (fpl)
21 PIF VCO Control
(1) No IF input.
(2)App|y 3.0V to pin 5.
(3) Measure the frequency of PIF VCO when the data of
sub-address (0A) is set (00) (fpifmin)
(4) Measure the frequency of PIF VCO when the data of
sub-address (0A) is set (7F) (fpifmax)
TA1268N-25
TOSHIBA
TA1268N
TEST CONDITION
(VCC = 9v, Ta = 25i3°C)
BUS MODE
(08) (0A) sw5
MEASUREMENT METHOD
Sound Output
(20) — ON
(1) Apply the signal (f0 =4.5MH2, fm =400Hz, 25kHz/devi
FM, 100mVrm5) to pin 52.
(2) Measure the output signal amplitude pin 54.
Sound Distortion
(1)Same as Note 22 (1)
(2) Measure the distortion of output signal at pin 54.
(1) Apply the signals as follows to pin 52,
FM : 400Hz 25kHz/devi FM, 100mvrrns
AM : 400Hz 30% 100mvrm5
(2) Measure the output levei at pin 54 against each input.
AMR=20€og (FM/AM)
Limiting Sensitivity
(1)Same as Note 22 (1)
(2)Change the input level. Measure the input level when
the output level at pin 54 become —3dB.
Sound Output
Frequency
Characteristics
(1)Same as Note 22 (1)
(2) Change the input frequency. Measure the input
frequency when the output level at pin 54 become -
3dB compare with peak level.
Sound Output
Resistance
Measure the output impedance at pin 54.
TA1268N-26
TOSHIBA
TA1268N
NOTE ITEM
TEST CONDITION (VCC = 9V, Ta = 25i3°C)
BUS MODE
(02) (06)
MEASUREMENT METHOD
28 ATT Gain
(80) Ad—
(1)App|y the signal (1kHz, 500mvrm5) to pin 55.
(2) Set the data of sub-address (02) to (80)
(3) Measure the output level at pin2 when the data of
sub-address (06) is set to (3F) (VATTMAX)
GATTMAX = 20809 (VArrMAx / 500mVrms)
(4) Measure the output level at pin2 when the data of
sub—address (06) is set to (20) (VATTMAX)
GATTMEAN = 20609 (VATTMEAN / VATTMAX)
(5) Measure the output level at pin2 when the data of
sub-address (06) is set to (00) (VATTMIN)
GATTMIN = 20309 (VATTMIN IVATTMAx)
29 DC Voltage Drift
(1) Same as Note 28 (1)
(2) Same as Note 28 (2)
(3) Measure the DC voltage at pin 2. (VZDC)
(4) Measure the voltage change at pin 2 when the data of
sub-address (06) is changed from (20) to (00). (VZVAR)
30 Input Impedance
T (20)
Measure the input impedance of pin 53 and 55.
TA1 268N-27
TOSHIBA
TA1268N
TEST CONDITION (VCC = 9v,
Ta = 25i3°C)
BUS MODE
(00) (02) (03) (04) (03) (0C) (0D)
MEASUREMENT METHOD
Input Impedance
(00) (00) (40) (20) (80) (80) (80)
Measure the input impedance of pin 37 and 39.
Input Dynamic
(1)TV Mode :
External Mode :
(2) Consider the chan
the DC voltage at pin 19 when output level of pin 19 is
Change the voltage in picture period
at pin 37.
Change the voltage in picture period
at pin 39.
ge of R output as 100%. Measure
10% (Vdn). Measure the DC voltage at pin 41 when
output level of pin 19 is 90% (Vdi2)-
Vdi41 =Vdi2—,Vdi1
Video Total Gain
TT(7F)TTTT
(1)TV Mode :
External Mode :
(2) Measure the sin si
Apply the input signal 1
(fo=10kHz, 0.5Vp_p)
Apply the input signal 1
(f0=10kHz, 0.5vp_p)
gnal amplitude at pin 19 (V9)
G—Y = zoeog (v9 /0.5vp_p)
Video Frequency
Characteristics
TT(40)TTTT
Measure input frequency when the output level becomes
Maximum Output
TT(7F)TTTT
(1)5ame as Note 33 (1)
(2) Measure the maximum output levei at pin 19.
TA1268N-28
TOSHIBA
TA1268N
NOTE ITEM
TEST CONDITION (VCC=9V, Ta=25i3°C)
BUS MODE
(00) (02) (O3) (04)
MEASUREMENT METHOD
36 Black Expansion
Amp. Gain
Black Expansion
Start Point
(00) (00) (40) (20)
(1)App|y 1Vp-p video signal as follows to video input.
(2) Measure the start point and amp gain of Black
expansion at pin 19.
Input Black Expansion Start Point
37 DC Restoration
(1)TV Mode : Apply input signal 1 (f0=10kHz
0.5Vp_p) to pin 37.
External Mode: Apply input signal 1 (f0=10kH2
. 0.5Vp_p) to pin 39.
(2) Make pin 42 open. Adjust the data of sub-address (03)
so that the output signal amplitude at pin 21 become
0.5vp_p.
(3) Measure the pedestal level at pin 21 when no
luminance signal is inputted. (Ay)
TCD=(Ay/0.5V)X100% [%]
38 Sharpness Control
Characteristics
T T (40) Ad-
(1)App|y input signal 1 (20mvp_p) to pin 39.
(2) Set the data of sub-address (04) is (3F)
(3) Measure the output signal amplitude at B out when
the signal (f0=10kHz) is applied (V10K) and when the
signal (f0=4MHz) is applied (VpK).
GSHMAx=20€09 (VPK/V10K)
(4) Set the data of sub-address (04) is (00)
(5) Measure the output signal amplitude (VPK) at B
output when the signal (fo=2.4MHz) is applied.
GSHMIN =20€og (VpK/V10K)
(6) Set the data of sub-address (04) is (20)
(7) Measure the output signal amplitude (VpK) at 3
output when the signal (f0=4.0MHz) is applied.
GSHCENT=20€09 (VpK/V10K)
TA1 268 N-29
TOSHIBA
TA1268N
NOTE ITEM
TEST CONDITION (Vcc=9V, Ta =25i3°C)
BUS MODE
(00) (02) (03) (04) (DB) (0C) (0D)
MEASUREMENT METHOD
39 Sharpness Delay
(00) (00) (40) (3F) (80) (80) (80)
Measure width of sharpness pulse.
40 Contrast Control
Characteristic
T T Ad—(20)T T T
(1)App|y input signal 1 (fo=10kHz, 0.5Vp-p) to pin39.
(2) Set the data of sub—address (03) is (40).
(3) Measure the output signal amplitude at pin 21.
(VCNCENT)
(4) Measure the output signal amplitude at pin 21 when
the data of sub—address (03) is set (7F) (VCNMAX)
(5) Measure the output signal amplitude at pin 21 when
the data of sub—address (03) is set (00) (VCNMIN)
GCNMAx=ZO€09 (VCNMAX/ VCNCENT)
GCNMIN=20609 (VCNMIN/VCNMAX)
41 H.V-blanking
Output Voltage
TT(40)TTTT
Measure the blanking pulse voltage at pin21.
42 V—blanking Width
Measure the blanking pulse width at pin21.
43 f5c Trap Gain
(80)TTTTTT
(1)Apply input signal 2. (f0=3.58MHz, 0.5Vp_p) to pin 39.
(2) Measure the output signal amplitude at B out when
the data of sub-address (00) is set (80). (VTON)
(3) Measure the output signal amplitude at B out when
the data of sub-address (00) is set (00). (VTOFF)
TA1 268N-30
TOSHIBA
TA1268N
TEST CONDITION
(VCC = 9V, Ta = 25i30C)
BUS MODE
(03) (04) (08) (0C) (0D)
MEASUREMENT METHOD
OSD Switching
Voltage
(40) (20) (80) (80) (80)
(1)App|y the external voltage to pin 14. Increase the
external voltage from 0V.
(2) Measure the voltage at pin 14 when the voltage of pin
19, 20 and 21 at picture period are changed.
OSD Delay Time
OSD Delay Time
Difference
Among 3 Axis
OSD Rising Time
OSD Falling Time
(1)App|y 1.5V to pin14.
(2)App|y the signal as following fig. (a) to pin 15.
(3) Measure 1.}; and t5: of R output at pin 19 according fig.
(4) Measure about G and B axis in the same way.
Input Clamp
Voltage
(1)App|y 1.5V to pin14V
(2) Measure the voltage at pin 15, 16 and 17.
TA1 268 N-31
TOSHIBA
TA1268N
NOTE ITEM
TEST CONDITION (vcc=9v, Ta=25i3°C)
BUS MODE
MEASUREMENT METHOD
47 OSD Gain
(1)App|y 1.5V to pin14.
(2) Apply the sine wave signal (10kHz, 0.5Vp_p) to pin 15,
16 and 17.
(3) Measure the output signal of pin 19, 20 and 21. (V41)
G-OSD = (v41 /0.5vp_p)
48 Input Dynamic
(1) Apply 1.5V to pin 14.
(2)App|y the sine wave signal (10kHz) to pin15, 16 and
17 with variable amplitude.
(3) Consider the output change as 100%. Measure the
input signal level when the output signal level is 10%,
(Vdi1) and when the output signal level is 90%. (VdiZ)
VdiOSD =Vdi2—Vdi1
TA1268N-32
TOSHIBA
TA1268N
NOTE ITEM
TEST CONDITION (VCC=9V, Ta=25i3°C)
BUS MODE
(03) (DB) (0C) (GD)
MEASUREMENT METHOD
49 Brightness Control
Characteristics
(40) (80) (80) (80)
(1)App|y a color bar signal to pin 39.
(2) Measure the pedestal 1evel of RGB output signal at
pin 19, 20 and 21 when the data of sub-address (02) is
set (7F). (VBRTmax)
(3) Measure the pedestal level of RGB output signal at
pin19, 20 and 21 when the data of sub-address (02) is
set (40) (VBRTcest)
(4) Measure the pedestal level of RGB output signal at
pin19, 20 and 21 when the data of sub-address (02) is
set (00)- (VBRTmin)
50 Brightness Control
Difference
between 3 Axis.
(1)Apply a colot bar signal to pin 39.
(2) Measure the different of pedestal voitage among 3
axis at pin19, 20 and 21.
51 Cut off
Characteristics
just just just
(1)App|y a color bar signal to pin 39.
(2) Measure the pedestal level of RGB output signal at
pin19, 20 and 21 when the data of sub-address (GB,
DC, OD) is set (FF) (VCUTMAX')
VCUTMAX = VCUTMAX’_VBRTcen
(3) Measure the pedestal level of RGB output signal at
pin19, 20 and 21 when the data of sub—address (08,
0C, 0D) is set (80) (VCUTCEN')
VCUTCEN = VCUTCENHVBRTcen
(4) Measure the pedestal level of RGB output signal at
pin19, 20 and 21 when the data of sub-address (08,
0C, OD) is set (00) (VCUTMIN’)
VCUTMIN = VCUTMIN’_VBRTcen
TA1268N-33
TOSHIBA
TA1268N
NOTE ITEM
TEST CONDITION
(Vcc = 9V, Ta = 25i3°C)
BUS MODE
MEASUREMENT METHOD
52 Drive Control
Characteristics
just (2) Measure the voltage of G and 8 output signal at
picture period at pin 20 and 21 when the data of sub-
address (0E, 0F) is set (80) (Vdrvcen)
(3) Measure the voltage of G and B output signal at
picture period at pin 20 and 21 when the data of sub-
address (0E, CF) is set (FF) (Vdrvmax)
Gdrvmax=20€°9 (Vdrvmax/Vdrvcen)
(4) Measure the voltage of G and 8 output signal at
picture period at pin 20 and 21 when the data of sub—
address (0E, OP) is set (00) (Vdrvmin)
Gd rvmin = 20509 (Vdrvmin /Vdrvcen)
(1)App|y the input signal 1 (f0=10kHz, 0.5Vp_p) to pin 39.
TA1 268 N-34
TOSHIBA
TA1268N
NOTE ITEM
TEST CONDITION (vcc=9v, Ta=25i3°C)
BUS MODE
MEASUREMENT METHOD
53 Input Dynamic
(1)Change the voltage of external input signal at picture
period at pin 39.
(2)Consider the output change at pin21 as 100%.
Measure the output signal amplitude at pin21 when
the output signal is 10% (Vdi1) and when the output
signal is 90% (Vd12)-
Vdi45 =Vdi2—Vdi1
54 ACC Characteristic
(1)Apply a rainbow color bar signal to pin 39.
(2) Measure the RGB output signal as F1 and F3 at pin 19,
20 and 21 when the input signal level is 100mVp_p and
300mvp_p.
A = F1 ”:3
ea F1 F3 eh
Input Burst Level
55 Killer Point
Apply the burst signal (SOmVp_p) to pin 39.
Decrease the input level by using ATT.
Measure the input burst signal when color killer on.
56 VCXO Frequency
Control Range
(1) Measure the DC voltage at pin11. (V11)
(2) Measure the frequency change at pin 12 when the
voltage of pin 11 is change from V11—0.5V to
V11 + 0.5V.
57 VCXO Frequency
Control Sensitivity
(1)Same as Note 57 (1)
(2)Same as Note 57 (2)
(3) Measure the sensitivity against 1mV at pin 11.
TA1268N-35
TOSHIBA
TA1268N
TEST CONDITION
(Vcc = 9v, Ta = 25:3°C)
BUS MODE
(02) (03) (0E) (0F)
MEASUREMENT METHOD
VCXO PuII-in
(00) (40) (80) (80)
(1)App|y a rainbow color bar signal to pin 39.
(2) Observe the RGB output signal at pin19, 20 and 21.
Change input fsc frequency by 10H: step up to
inHz. Measure the puII-in range.
Demodulate
Relative Gain
Demodulate
Relative Phase
(1) Apply the rainbow color bar signal (f5c=3.479545MHz,
0.3Vp_p) to pin39.
(2) Measure the amplitude and phase of 100Hz signal at
pin19, 20 and 21.
Calculate R/B, G/B, R-B, G-B.
Carrier Wave
Remain
(1)App|y a rainbow color bar signal to pin 39.
(2)Adjust the data of sub—address (01) so that the RGB
output amplitude at pin 19, 20 and 21 will be
maximumt
(3)App|y the signaI that has only sync. and burst signal to
pin 39.
(4) Measure the fsc components of RGB output signal at
pin 19, 20 and 21.
Color Control
Characteristic
(1)App|y a rainbow color bar signal to pin 39.
(2) Measure the amplitude of RGB output signal at pin19,
20 and 21 when the data of sub—address (00) is set
(7F)- (VCLRmax)
(3) Measure the amplitude of RGB output signal at pin 19,
20 and 21 when the data of sub-address (00) is set
(40)- (VCLRcen)
GCLRcen = 20mg (VCLRmax / CCLRcen)
(4) Measure the amplitude of RGB output signal at pin19,
20 and 21 when the data of sub—address (00) is set
(00). (VCLRmin)
GCLRmin = 20€09 (VCLRmax/ VCLRmin)
TA1268N-36
TOSHIBA
TA1268N
NOTE ITEM
TEST CONDITION (Vcc = 9v, Ta = 25i3°0
BUS MODE
(02) (03)
MEASUREMENT METHOD
62 Uni-color Control
Characteristic
(00) Ad—
(1)Apply a rainbow color bar signal to pin39.
(2) Measure the ampiitude of R68 output signal at pin 19,
20 and 21 when the data of sub-address (03) is set
(7F). (VUNImax)
(3) Measure the amplitude of R68 output signal at pin19,
20 and 21 when the data of sub—address (03) is set
(40)' (VUNIcen)
GUNIcen=20€09 (VUNImax/VUNIcen)
(4) Measure the amplitude of RGB output signal at pin19,
20 and 21 when the data of sub-address (03) is set
(00). (VUNlmin)
GUNlmin=20£09 (VUNImax/VUNImin)
63 TINT Control
Characteristic
T (40)
(1) Apply a rainbow color bar signal to pin 39.
(2) Adjust the data of sub—address (01) so that the 6th bar
of 8 output signal at pin 21. (eTNTcen)
(3) Measure phase change of 8 output signal at pin21
when the data of sub-address (01) is change from (00)
t0 (7F). (AeTNT)
64 Video Chroma
Delay Time
(1) Apply a rainbow color bar signal to pin 39.
(2) Measure rising time of color signal at pin19, 20 and
21. When the data of sub-address (04) is set (60). (DTC)
(3) Measure rising time of Y signal at pin19, 20 and 21
when the data of sub-address (04) is set (00). (DTY)
tV_C = DTY—DTC
TA1268N-37
TOSHIBA
TA1268N
TEST CONDITION (VCC = 9V, Ta = 25i3°C)
BUS MODE
MEASUREMENT METHOD
Horizontal Free
Run Frequency
Measure the frequency of H-out at pin 32. (fH')
fH =fH'—15.734kHz
Horizontal Out
Pulse Duty
Measure the duty of horizontal pulse at pin 32.
Horizontal Out
Voltage
Measure the high level and low level at pin32.
VCO Oscillation
Start Voltage
Increase H. VCC from 0V at pin 26. Measure the H. VCC
at pin 26 when VCO starts oscillation.
Horizontal Output
Start Voltage
Increase H. VCC from 0V at pin 26.
Measure the H. VCC at pin 26 when Horizontal pulse
starts to output at pin 32.
Horizontal
Frequency Control
(1) Measure the DC voltage at pin 33.
(2) Measure Horizontal frequency control range when the
voltage of pin 33 is changed from V33—O.SV to
V33 + 0.5V.
Horizontal
Frequency Control
Sensitivity
(1)5ame as Note 71 (1)
(2)Same as Note 71 (2)
(3) Measure horizontal frequency control sensitivity against
1mV at pin 33.
TA1268N-38
TOSHIBA
TA1268N
TEST CONDITION (VCC = 9V, Ta = 25i3°C)
BUS MODE
MEASUREMENT METHOD
Horizontal Sync.
PulI-in Range
(1)App|y Sync. signal to pin 39.
(2) Observe horizontal output at pin 32.
Change the input sync. frequency by 10Hz. Step up to
Measure the pull-in range.
Horizontal Sync.
PulI-in Stop Period
(1) Apply Sync. signal to pin 39.
(2) Observe input sync. signal and pin 33.
Measure the puII-in stop period as follows.
h b AFC
|-——— Pul|—in Stop Period —-l
AFC-Z Control
(1) SW30 is on, and delay the rising of FBP from rising of
horizontal out by 1115 step.
(2) SW30 is off. Measure the maximum delay time which
AFC2 can pulI-in.
Horizontal Out
i'- TAFC
Horizontal Sync.
Position
Adjustment
(1) Measure the phase of horizontal out when the data of
sub-address (05) is set (10).
(2) Measure phase change when the data of sub-address
(05) is change to (00) and (1F).
TA1268N-39
TOSHIBA
TA1268N
TEST CONDITION
(VCC = 9V, Ta = 25i3°C)
BUS MODE
MEASUREMENT METHOD
X~RAY Protection
detect Voltage
X-RAY Protection
Hold Voltage
X~RAY Protection
Hold Current
(1) Connect external voltage supply to pin 29.
(2) Measure each point as follows.
'XLD =(V29OFF_VXOFF)/10kQ
VXHLD -------- a 10kS2
VXDET '— Vx
External Voltage
Vertical Free Run
Frequency
Measure vertical frequency at pin 22. (fV')
fV =fV1/15.734kHz
Vertical Sync. Pull-
in Range
(1)App|y sync. signal to pin 39.
(2)0bserve vertical output at pin 22.
Change input frequency by 0.5H step.
Measure vertical sync. puII-in range.
Vertical Pulse
Measure vertical pulse width as follows.
TA1 268N410
TOSHIBA
TA1268N
NOTE ITEM
TEST CONDITION (Vcc=9V, Ta=25i3°C)
BUS MODE
(05) (09)
MEASUREMENT METHOD
80 Vertical Ramp
Amplitude Control
(10) Ad-
(1) Measure vertical ramp amplitude when the data of
sub-address (09) is set (3F). (VVH)
(2) Measure vertical ramp amplitude when the data of
sub-address (09) is set (00). (VVL)
81 Horizontal Sync.
Separation Level
T (20)
(1)App|y white 100% signal that has short sync. every
10H to pin 39.
(2) Observe sync. separation output at pin 31.
Measure sync. separation level by changing sync.
length.
Rsepa 100%
82 Forced V. Osc.
(262.5H)
(1) Set the data of sub-address (0A) to (C0).
(2) Measure vertical frequency at pin 22.
TA1268N-41
TOSHIBA
TA1268N
TOSHIBA
TA1268N
TEST CIRCUIT
{(5 E 10/1F
' 31” Q--a'- + 1m
- 5AV o"-"-(isi X-RAY SDA Ci8)-'iik-o
"HC-t 47m t-pth- 1m
--"-t c, 30 FBP IN SCL 27
0 01/1F
gm -o 8.2kQ I t + -
m 0.01 F 10 F it
I mmkm 3300 31 Sync.OUT H.Vcc 26 o,'
3.4M? 2.2prF
CL Cr, C2sD--a'-
051% 132 H. OUT v SEPA FILTER 25
m 2.2/1
N + - 3 H.AFC V.RAMP 24 + -
'" 1/1F 2.214)
U it-lil 34 32fHVCO NFB @Lkno
I cssL1703360n
q- KECZF30 $-fsii D.GND V.OUT 1a)-o
U ABL B OUT iCi))-o
TV IN G OUT Ci0)-o
ACL R OUT D-o
EXT. VIDEO 00 D. Vcc (ii)-o "l
BLACK DET N B IN De
'" 0.1luF
AVISW OUT < G IN Cisye “k
r- (hlpzF
DC REST R IN cs).-,, 4.7k
0.1/1F
Y IN F-BLK 14 4.7k
AFT GND
Ci, CHROMA IN vcxo
"'oor-t ik-u,
I Its (hlpF ai, v APC FILTER
Q, All am WY CC
m -, "EN HP
CY u. 'u Ci TV DET. OUT LOOP FILTER
Cl 'eiJ, SIF Vcc PIF Vcc
ZX," m PIF TANK PlF IN
= . PIF TANK PIF IN
v; 22 H gm it-Cs? SIF GND PIF GND
m 0.47PF
'k u. E _ + -
Ps a u? 52 LIMITER IN AGC FILTER 5
Ill-t u. t .. I 1000PF
d, s3 AUDIO TV IN SIF TANK 4 Ft
75.” Pt + 9.1kQ
54 DE-EMPHASIS RF AGC 3
1m 4700pF
047,5 I-p; F
cr-Iii-Kiss) EXT. AUDIO SOUND OUT Cir"-ue-o
56 N.C. A N.C. 1
TOSHIBA TA1268N
iv/r/tii- VVV\
vi, f-
AAKWWWAAA
s-r/ire-ri""")-,
4 W f-
TOSHIBA TA1268N
APPLICATION CIRCUIT
- + lkQ
29 X-RAY SDA iis)-'ilk"-ty
47km 1m
> 30 FBP IN SCL D-ac-o
T" 8.2k0 + -
a4 31 i?, looygFE 182f g
c,)/3'ri/-t Sync. OUT H. VCC m'
tef) 2.2prF
3 (HhlpzF 32 H. OUT v SEPA FILTER 25
>. - 'Ye
I + 33 H. AFC v. RAMP 24 +
IM' 2.2m
34 32vaco NFB C2aD"-""o
CSBLA503360‘Q
"CTL, Hiii D. GND v. OUT D-o
ABL B OUT Ciy-o
TV IN G our D-cr
ACL R OUT D-to
EXT. VIDEO tX2 D. Vcc @—0 m.
BLACK DET N B IN CH.,
'- 0.1;»
< 4.7k
AV/SW OUT G IN De
I- 0.1/1F
DC REST R IN De
0.1/1F
Y IN F-BLK 14 4.7k
AFT GND 13
-] 0.0 F .
3309 A CHROMA IN vcxo C2y-llll-is'-'"i:'
, Ir/r- 33k!) 047/1"
VCC APCFILTER 11 - +
0.022pt 0.47,»
TV DET. OUT LOOP FILTER WE
22 pF 68 H
SIF VCC PIF VCC 9 0.01,;F 47 F
(a) (s) 6:) (a)
3 3 0'0
T PT TANK PIF IN
3: PIF TANK PIF IN
b" 22 H ES Hii SIF GND PIF GND
u. E m
f? k m_ -(iii) LIMITER IN AGC FILTER
«L m Alll t t I 53 AUDIO TV IN SIF TANK
-t1y-t it-, 54 DE-EMPHASIS RF AGC
1m 4700pF
0.47/1}:
o-DiHiji: EXT, AUDIO SOUND OUT
56 N. c. A N. C D
44 2003-01-15
TOSHIBA TA1268N
OUTLINE DRAWING
SDlP56-P-600-1.78 Unit : mm
f-lf-lf-lr-Tr-lf-IF-ll-lr-ill-lf-lf-lf-If-Ir-Trl..-]}-!.).)..]
14.0:02
LLu.dLdLJLLclL..lL..lt-lcjclclcllLclclclcll-ll-lcJclclclcJl-lulul
mama; I
5th4Hh2
0.51m: ‘3.5:o.2
1.197TYPs,
Weight : mama (Typ.)
45 2003-01-1 m
TOSHIBA TA1268N
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.
46 2003-01-15
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