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MITSUMI
S Video Amplifier MM1024
S Video Amplifier
Monolithic IC MM1024
Outline
This is a video amp IC that supports S and also has border and superimpose functions. Amp gain is as follows : 6dB for Y signal amplification, 10dB for C signal amplification and 6dB for composite signal amplification. A 75 driver is built in.
Features
1. 2. 3. 4. 5. 6. 7. 8. Supports S-VHS Built-in superimpose function (character and border levels) Built-in Y-C mix circuit Vertical/horizontal sync signal output pin Amp gain : 6dB for Y signal, 10dB for C signal and 6dB for composite signal Built-in clamp circuit (for Y signal only) 75 driver built in Frequency response Y : 7MHz C : 5MHz 9. Power supply voltage 4.7V~5.3V
Package
SOP-16A (MM1024AF)
Applications
1. 2. 3. 4. TV VCR VCR with camera Other video equipment
MITSUMI
S Video Amplifier MM1024
Block Diagram
Pin Description
Pin no. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Pin name R C PBIN VSYNC OUT PBIN Chroma mute input CHROMA OUT GND SUG VIDEO OUT YOUT SUG Character input Bordering input YRO VIDEO IN VCC Function Integrates sync signal and inputs to Schmidt circuit Chroma signal input pin for other than playback Vertical sync signal output pin Chroma signal input pin for playback Chroma mute signal input pin Chroma signal output pin Anti-sag pin Composite video signal output pin Y (luminance) signal output pin Anti-sag pin Character input pin for superimpose Bordering input pin Luminance or video signal input pin
Absolute Maximum Ratings
Item Storage temperature Operating temperature Power supply voltage Allowable loss
(Ta=25C) Symbol TSTG TOPR VCC max. Pd Ratings -40~+125 -20~+75 7 350 Units C C V mW
MITSUMI
S Video Amplifier MM1024
Electrical Characteristics
Item Operating power supply voltage Consumption current Y amp output Voltage gain Differential gain Differential phase Frequency characteristic Video amp output Voltage gain Differential gain Differential phase Frequency characteristic Chroma amp Voltage gain Frequency characteristic Crosstalk Crosstalk 1 YIN Crosstalk 2 PB Crosstalk 3 PB Crosstalk 4 PB Superimpose Edge level Y Edge level V Character level Y Character level V Input threshold voltage Bordering input Character input Chroma mute input Sync separation Sync separation level Schmitt trigger threshold voltage COUT YOUT YOUT COUT GV2 GV1
(Except where noted otherwise, Ta=25C, VCC=5.0V, pulse level 0V, SW1 : A, SW2 : Measurement circuit VCC TP11 TP10 TP10 TP11 TP8 TP9 TP9 TP8 TP7 TP7 TP7 TP11 TP11 TP7 TP10 TP9 TP10 TP9 TP13 TP12 TP5 TP14 TP1 TP3 Measurement conditions SG-1, SG-2, SG-3 : No signal Measure with DC ammeter. SG-1, sweep signal 1VP-P, 0.1MHz SG-1, staircase wave, 1VP-P APL=10, 50, 90% SG-1, staircase wave, 1VP-P APL=10, 50, 90% SG-1, sweep signal, 1VP-P 5MHz/0.1MHz 1 5.5 Min. Typ. Max. Units 4.7 5.0 5.3 V 25.0 33.0 mA 6.0 1.0 1.0 -1.0 5.5 0 6.0 1.0 1.0 -1.0 9.0 -1.0 0 6.5 3.0 3.0 1.0 6.5 3.0 3.0 1.0 dB % deg dB dB % deg dB dB dB dB dB dB dB IRE IRE IRE IRE V V V mV V V V V
Symbol VCC Id
DG1 DP1 fc1
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DG2 DP2 fc2 GV3 fc3 CT1 CT2 CT3 CT4 VEDY VEDV VCHY VCHV VTH1 VTH2 VTH3 VSEPA
SG-1 sweep signal 1VP-P, 0.1MHz SG-1, staircase wave 1VP-P APL=10, 50, 90% SG-1, staircase wave, 1VP-P APL=10, 50, 90% SG-1 sweep signal 1VP-P 5MHz/0.1MHz 2
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SG-2, sine wave, 0.2VP-P, 0.1MHz SG-2, sine wave, 0.2VP-P 5MHz/0.1MHz 3
10.0 11.0 0 -36 -42 -42 -50 1.0 -30 -36 -36 -40 10 10 70 70 2.1 2.1 2.1 165 2.3 1.5 0.4
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SG-1, sine wave, 1.0VP-P, 4MHz 2 SG-2, sine wave, 0.2VP-P, 4MHz 3 SG-3, sine wave, 0.2VP-P, 4MHz SW2 : A 3 SG-1, sine wave,0.2VP-P, 4MHz 4
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SG-1, staircase wave (no chroma signal) 1VP-P, TP13, pulse level, 5V SG-1, staircase wave (no chroma signal) 1VP-P, TP13, pulse level, 5V SG-1, staircase wave (no chroma signal) 1VP-P, TP12, 13, pulse level, 5V SG-1, staircase wave (no chroma signal) 1VP-P, TP12, 13 pulse level 5V
0 0 60 60
5 5 65 65 1.4 1.4 1.4 110 2.1 1.3 5.0 0.2
SG-1, staircase wave (no chroma signal) 0.7 1VP-P, TP13, pulse level, L H 5 SG-1, staircase wave (no chroma signal) 0.7 1VP-P TP12, 13, pulse level, L H 5 SG-2, sine wave, 0.1VP-P, 4MHz 0.7 TP5, pulse level, L H 6
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VTH4H VTH4L VVH Vertical sync output voltage VVL
SG-1, staircase wave (no chroma signal) 1VP-P 55 SG-1, SYNC level, max min 7 TP1, DC voltage, 0V H 8 1.9 TP1, DC voltage, 5V L 8 1.1 TP1, DC voltage, 5V L 9 4.8 TP1, DC voltage, 0V H 9
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MITSUMI
S Video Amplifier MM1024
Notes : 1 1.Voltage gain GV1, GV2, GV3 Given SG-1 input as V1 and TP11 output signal as V2, GV1 is obtained as follows. The same applies for GV2 and GV3.
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GV1=20LOG
V2 [dB] V1
2.Frequency response fC1, fC2, fC3 For the same conditions as the GV1 measurement, given TP11 output for 0.1MHz as V3, and for 5MHz as V1, Fc1 is obtained as follows. The same applies for fc2 and fc3. fc1=20LOG V4 [dB] V3
*2
Crosstalk YIN COUT CT1 Given TP14 input signal as V5 and TP7 output signal as V6, CT1 is obtained as follows. CT1=20LOG V6 [dB] V5
*3
Crosstalk PB, PB YOUT CT2, CT3 Give TP2 and TP4 input signals as V7, and TP11 output signal as V8, CT2 and CT3 are obtained as follows. CT2=20LOG V8 [dB] V7
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1.When C is input to compare between YIN COUT and CIN YOUT, subtract the 4dB amp portion from crosstalk. 4 Crosstalk PB COUT CT4 Given TP4 input signal as V9 and TP7 output signal as V10, CT4 is obtained as follows. CT4=20LOG V10 [dB] V9
*5
Input threshold voltage Bordering input, character input VTH1, VTH2 For the same conditions as VEDY and VCHY measurement, raise TP13 and TP12 pulse levels gradually. TP13 and TP12 pulse levels when bordering signal and character signal appear on TP11 are, respectively, VTH1 and VTH2. Input threshold voltage Chroma mute input VTH3 Gradually raise TP5 pulse level. TP5 pulse level when a sine wave is no longer output on TP7 is VTH3. Sync separation level VSEPA Gradually reduce SG-1 SYNC level from maximum to minimum. Measure the SYNC signal level at TP14 when a sync separation signal is no longer output on TP15 to obtain VSEPA. Schmidt trigger threshold level VTH4H, VTH4L Impress external DC voltage on TP1 and gradually raise from 0V. TP1 level when TP3 level goes from high to low is VTH4H. Gradually lower from 5V. TP1 level when TP3 level goes from low to high is VTH4L. Vertical sync output voltage VVH, VVL TP3 low level for TTH4H measurement is VVL, and TP3 high level for VTH4L is Vvh.
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MITSUMI
S Video Amplifier MM1024
Measuring Circuit
Application Circuits

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