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TA1249F
2-CHANNEL RECORDING AMPLIFIER & PRE-AMPLIFIER FOR VCR
TOSHIBA TA1249F
TOSHIBA BIPOLAR LINEAR INTEGRATED CIRCUITS SILICON MONOLITHIC
TAI 249F
2-CHANNEL RECORDING AMPLIFIER & PRE-AMPLIFIER FOR VCR
FEATURES
The TA1249F is a 2-channel recording amplifier and pre-
amplifier for use in VCR. Since the recording amplifier
uses a differential mechanism, it is particularly effective in
reducing high-frequency even-ordered distortion.
The pre-amplifier also has a differential mechanism and
thus also reduces noise.
Differential drive type recording amplifier
SSOP16-P-225-1.00A
Weight : 0.14g (Typ.)
Differential input type pre-amplifier
Built-in envelope detector for auto-tracking
Built-in recording mute circuit
Board patterns can easily be shared, due to the high pin compatibility with the TA1250F 4-
channel recording amplifier and pre-amplifier, and the TA1273F 6-channel recording amplifier and
pre-amplifier.
1 2001-06-25
TOSHIBA TA1249F
BLOCK DIAGRAM
TA1249F (itch) - - Cl
RecAmp. Gain-R or '
*DC H/M (open)/L
TA1250F (Itch)?
pattern i
r- - .
TRICK H REC-RF ENV. DET. PB-RF
H. SW REC SP L REC MUTE
2 2001-06-25
TOSHIBA TA1249F
PIN DESCRIPTIONS (VCC=5.0V, Ta=25°C)
TYPICAL DC
PIN No. FUNCTION VOLTAGE INTERFACE CIRCUIT NOTES
1 Rec RF IN 0.9V Current input type
ENVDET Pull-up used in Hi-Fi
2 ENV DET OUT - OUT mode
(Over 4.9V : Hi-Fi mode)
3 GND (0V) - -
Video : 0.3mVp-p input
l 60dB
4 PB RF OUT 2V ct G) PPI/tp. output .
§1; Hi-Fi : 0.15mup-p input
COMP I x l 67dB
336m1/p-p
5 Vcc (5V) - -
REC mode when TP6 is
6 H.SW/Rec H 2 5V greater than 4.1V
switching . H.SW is current input
V7 voltage
L : SP
SP/EP/R M
7 . . ec ute 1.7V H : EP
switching
TP7 voltage
H : Red Mute
8 Filter 2 1r
1 8V 2.7V DC return filter
. COO- 2k!) r--
9 Filter 1 49
10 Rec OUT1 -tDG
Open collector 1: -
14 Rec OUT2
TOSHIBA TA1249F
TYPICAL DC
PIN No. FUNCTION VOLTAGE INTERFACE CIRCUIT NOTES
11 PB lbl1 I
PB : 0.9V 70m -
13 PB Ibl2 PB ON o
Rec : 4.3V
12 Head COMMON PB : 0.1V -
15 Head GND (0V) - -
Open : 2.5V
Rec current gain Gain switching :
16 switching 2.5V H/M/V-y
5V/2.5V (OPEN)/0V
CONTROL TABLES
HEAD switching
1/6 voltage SP mode EP mode Hi-Fi mode
During PB H 2ch 2ch 2ch
L 1ch 1ch 1ch
(Note) The above settings are controlled by the input and output currents.
Pin 6 (TP6) has function of Rec H too.
MODE switching
V7 voltage Mode
H (OPEN) EP
(Note) Pin7 has function of Rec Mute too. When pin 7 (TP7) is raised to H (Vcc), then Rec
Mute mode is set.
Switching of Rec current gain is performed at pin 16.
Pin 16 Gain
voltage
H 3.5dB
M (OPEN) OdB
L - 6dB
(Note) Uses M-Ievel voltage at pin 16 as reference.
TOSHIBA TA1249F
EXAMPLES OF REC CURRENT SETTING
It When used in video mode
Input : 500mup-p, 4MHz
PIN1 INPUT REC CURRENT (SIKEELEClémEINEL
RESISTANCE GAIN -
OUTPUT)
M 17.7mA
“<0 L 8.89mA
H 17.8mA
1.5kQ M 11.8mA
L 5.93mA
It When used in Hi-Fi mode
Input : 700mup-p, 2MHz
PIN1 INPUT REC CURRENT (SITvEGCLEC-lémwlu
RESISTANCE GAIN
OUTPUT)
H 24.8mA
2kf2 M 16.6mA
L 8.3mA
H 16.5mA
3kfl M 11.0mA
MAXIMUM RATINGS (Ta=25°C)
CHARACTERISTIC SYMBOL RATING UNIT
Power Supply Voltage VCC 7 V
Power Dissipation 1 PD1 (Note 1) 378 mW
Power Dissipation 2 PD2 (Note 2) 780 mW
Input Voltage VIN GND-0.r-Vcc+0.3 v
Operating Temperature Topr -20--75 "C
Storage Temperature Tstg - 55~150 "C
(Note 1) Derated linearly above Ta=25°C in the proportion of 3mW/°C.
(Note 2) On the board mounting (Glass epoxy 50x50x1.6mm, Area of copper : 40%)
Derated linearly above Ta=25°C in the proportion of 6.3mW/°C.
RECOMMENDED POWER SUPPLY VOLTAGE RANGE
Power supply voltage : 4.5--5.5V, 5V (typical)
5 2001-06-25
TOSHIBA TA1249F
ELECTRICAL CHARACTERISTICS (VCC = 5V, Ta = 25°C)
VIDEO SYSTEM
PB mode
CHARACTERISTIC SYMBOL CIR- TEST CONDITION MIN. TYP. MAX. UNIT
Power Supply Current Iccp - - 21 27 33 mA
1 I V11 V1 : f=1MH
Voltage Gain G - nput ( ' 3) z, 57 60 63 dB
G2 0.3mvp_p
Voltage Gain Difference AG - GI-G2 -0.5 0 0.5 dB
. . GF1 Input (V11, V13) : 0.3mVp-p
- - 1. . 2. B
frequency Characteristic GF2 Output ratio 8M/1M 5 0 5 5 d
secondary Harmonic HD1 - Input (VII, V13) I 0-3mVp-p - -50 -45 dB
Distortion HD2 Power ratio 8M/4M
Input (V11, V13) : f=1MHz;
. Vom1
Maximum Output - level when 2 o 2 2 - V
Voltage V thirdly harmonic distortion of . p-p
om2 output reaches -30dB.
CR1 Input (V11, V13) : f=4MHz,
Crosstalk - 0'3"“,pr - -38 -35 dB
CR2 Level difference between
channels
Output DC Offset AVODC - CH1 -CH2 - 15 0 15 mV
. N1 Measurement point 4MHz
Eguated Input Noise N2 - RBW : 10kHz - 0.1 - PA/rms
VENVS1 - lsnopuc (VII, V13) : f=4MHz, 0.4 0.7 1.0
/l p-p
ENV-Det (SP Mode) . V
VENVS2 - Input(V11,V13) . f=4MHz, 2.95 3.35 3.75
1mVp-p
VENVE1 - Lnopu\’;(V11, V13) : f=4MHz, 0.8 1.1 1.4
ENV-Det (EP Mode) . V
VENVE2 - Input (V11, V13) . f=4MHz, 3.4 3.8 4.2
1mVp-p
Rec mode (Input resistance : 1.5km
CHARACTERISTIC SYMBOL CIR- TEST CONDITION MIN. TYP. MAX. UNIT
Power Supply Current Iccr - - 52 63 79 mA
GrHI Input : f=1MHz, 500mVp-p
GrH2 - Pin 16 puII-up (Rec Gain : High) 33.8 34.3 34.8
. GrM1 Input : f=1MHz 500mV -
c - ' p p . . .
urrent Gain GrM2 Pin 16 open (Rec Gain : Middle) 30 3 30 8 31.3 dB
GrL1 Input : f=1MHz, 500mVp-p
GrL2 - Pin 16 pull-down (Rec Gain : Low) 24.4 MS 25.4
. . Grf1 Input : 500mVp-p, pin 16 open
Frequency Characteristic Grf2 - Output ratio 8M/1M - 1.5 0 1.5 dB
Secondary Harmonic HDR1 f=4MHz, 500mVp-p, -50 -45 dB
Distortion HDR2 Output ratio 8M/4M -
6 2001-06-25
TOSHIBA TA1249F
CONTROL SYSTEM
CHARACTERISTIC SYMBOL CIR- TEST CONDITION MIN. TYP. MAX. UNIT
Mute1 - Mute ON (TP7) 4.2 5.0
Rec Mute Mute2 - Mute OFF (TP7) 0.0 3.4 V
R/P1 - Rec mode (TP6) 4.0 5.0
Rec/PB R/P2 - PB mode (TP6) 0.0 2.8 V
EPS1 - SP mode (V7) 0.0 0.6
SP/EP EPS2 - EP mode (V7) 1.5 5.0 V
SWP1 - 1CH (V6) 0.0 1.5
1CH/2CH SWP2 - 2CH (V6) 3.5 5.0 V
. . GH - High 4.0 5.0
Pin 16 Gain Change GL - Low 0.0 1.0 V
. . . VH1 - Video mode (TP2) 0.0 4.3
Video/ Hi-Fi VH2 - Hi-Fi mode (TP2) 4.9 5.0 V
Hi-Fi SYSTEM (Input resistance : 2K0)
CHARACTERISTIC SYMBOL CIR- TEST CONDITION MIN. TYP. MAX. UNIT
Power Supply Current Icchp - - 22 28 36 mA
Power Supply Current lcchr - - 63 77 96 mA
. GHP1 Input (V11, V13) : 1MHZ,
Voltage Gain (PB) GHP2 - 0.15mVp-p 64 67 70 dB
GHRH1 Input : f=1.5MHz 700mVp-p
- ' . 7. 7.
GHRH2 Rec Gain : High 36.8 3 3 3 8
. GHRM1 Input : f=1.5MHz, 700mVp-p
Current Gain (Rec) GHRM2 - Rec Gain : Middle 33.3 33.8 34.3 dB
GHRL1 Input : f=1.5MHz, 700mVp-p
GHRL2 - Rec Gain : Low 27.4 27.9 28.4
Frequency Characteristic GHf1 - Input (ull, V13) : 0.15mVp-p -0.3 0.2 0.7 dB
(PB) GHf2 Output ratio 3M/1M
Frequency Characteristic GHrf1 - Input i 709mVp-p -0.6 o 0.4 dB
(Rec) GHer Output ratio 3M/1M
Secondary Harmonic HDrf1 Input (VII, V13) : 2MHz,
Di t ti (PB) - 0.15mvp-p - -60 -45 dB
IS or lon HDrf2 Ratio 4M /2M
Secondary Harmonic HDRf1 - Input : 2MHz, 700mVp-p - -50 -45 dB
Distortion (Rec) HDRf2 Ratio 4M/2M
. CMDI Input : 700mvp-p (R)+221
Intermodulation mVp-p (L) -45 -40 dB
Distortion - L : f=1.3MHz, R : f=1.7MHz, -
CMD2 L/R ratio : -10dB
CRH1 t','t,,t/11,,1' V13) : f=2MHz,
- . p-p - - -
Crosstalk Level difference between 38 36 dB
CRH2 channels
TOSHIBA TA1249F
TEST CIRCUIT
8 2001-06-25
TOSHIBA TA1249F
PACKAGE DIMENSIONS
SSOP16-P-225-1.00A Unit : mm
16 L.,
H H H H H H H H L n h"
cu rn. N c:
Si?, fi?, ts f,
co W. m cu
v Ct SY..
iii. T _,iir,.i, bl bl bl H______ r. IL
0.6TYP >4H l 4d:thl C 02@
H, 8.7MAX y
" 8.2i0.2 r.,' m
[ $5. ii' 17
ut" m ".
1gggrgggggil. _,..ia'i...(..,d,1"i] o !
'18“ ir-
5,5' = :0.525102
Weight : 0.149 (Typ.)
9 2001-06-25
TOSHIBA TA1249F
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.
10 2001-06-25
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