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MITSUMI
Video Amplifier
Monolithic IC MM1002
Outline
This IC is a video amplifier that can perform superimpose. It has a built-in 75Ω driver.
Features
1. Built-in superimpose function
2. Built-in Y-C mix circuit
3. Vertical/horizontal sync signal output pin
4. Built-in clamp circuit (for Y signal only)
5. 75Ω driver built in
6. EVF driver built in
7. External pin (Pin 14) allows fine tuning of character level
8. Frequency response 5MHz
9. Power supply voltage 4.7V~5.3V
Video Amplifier MM1002
Package
SOP-16A (MM1002F)
Applications
1. TV
2. VCR
3. VCR with camera
4. Other video equipment
Block Diagram
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MITSUMI
Video Amplifier MM1002
Pin Description
Pin no. Pin name Internal equivalent circuit diagram Pin no. Pin name Internal equivalent circuit diagram
1 NC
2
CHROMA IN
3 MIX
4 C1 12 EVF
9 GND
10
VIDEO OUT
11
Anti-sag
pin
5 R
6 H-SYNC
7 C2
8 V-SYNC 16 VIDEO IN
Character
13
14
15 V
signal
Character
signal level
CC
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MITSUMI
Video Amplifier MM1002
Absolute Maximum Ratings
(Ta=25°C)
Item Symbol Ratings Units
Storage temperature T
Operating temperature T
Power supply voltage V
STG
OPR
CC 7V
-
40~+125 °C
-
20~+75 °C
Allowable loss Pd 350 mW
Electrical Characteristics
Item
Operating power supply voltage
(Except where noted otherwise, Ta=25°C, VCC=5.0V, pulse level 0V, short between V
Symbo
Measurement
l
circuit
Measurement conditions Min. Typ. Max. Units
VCC VCC 4.7 5.0 5.3 V
Consumption current Id Id 18.0 25.0 mA
EVF output
Voltage gain G
Differential gain DG1 Buf
Differential phase DP1 Buf
Frequency characteristic fc1 TP3
Video amp output
Voltage gain G
Differential gain DG2 Buf
Differential phase DP2 Buf
Frequency characteristic fc2 TP4
Character addition
U1 TP3 SG
U2 TP4 SG
SG-1 staircase wave (no chroma signal) 1V
-
1 sweep signal 1VP
-
P, 0.1MHz
SG-1 staircase wave 1V
APL=10, 50, 90%, SW 1
SG-1 staircase signal 1V
APL=10, 50, 90%, SW 1
SG-1 sweep signal 1V
5MHz/0.1MHz
-
1 sweep wave 1VP
SG
-
1 staircase wave 1VP
*
-
P, 0.1MHz 5.5 6.0 6.5 dB
APL=10, 50, 90%, SW 2
SG-1 staircase signal 1V
APL=10, 50, 90%, SW 2
SG
-
1 sweep signal 1VP
5MHz/0.1MHz
*
-
0.5 0.0 +0.5 dB
P-P
P-P
P-P
1
-
P
P-P
-
P
1
P-P
13%
1 3 deg
-
10 1dB
13%
1 3 deg
-
10 1dB
Character level VCL TP4 HD horizontal sync signal 115 120 125 IRE
TP7 pulse level 5V
SG-1 staircase wave (no chroma signal) 1V
P-P
Input threshold voltage VTH13 TP7 HD horizontal sync signal 0.7 1.4 2.1 V
Chroma amp
Voltage gain G
U3 TP4 SG
Frequency characteristic fc3 TP4
Crosstalk C TP4
Input threshold voltage V
TH3 TP8
Sync separation
Sync separation level V
7PIN threshold voltage
Horizontal sync output voltage
Vertical sync output voltage
SEPA TP1
V
TH7H
TH7L TP9 DC voltage 5V L
V
VOH6
OL6 (no chroma signal) 1VP
V
V
OH8
V
OL8
TP9
TP10
TP11
TP7 pulse level L H
-
2 sine wave 0.1VP
SG-2 sine wave 0.1V
5MHz/0.1MHz
SG
-
2 sine wave 0.1VP
TP8 pulse level 5V
SG
-
2 sine wave 0.1VP
TP8 pulse level L H
SG-1 staircase wave (no chroma signal) 1V
SG-1 SYNC level max min *5
TP9 DC voltage 0V H
SG-1 staircase wave 4.8 5.0 V
SG-1 staircase wave 4.8 5.0 V
(no chroma signal) 1V
2
*
-
P, 0.1MHz 13.5 15.0 16.5 dB
P-P
1
*
-
P, 4MHz
3
*
-
P, 4MHz
4
*
6 1.9 2.1 2.3 V
*
6 1.1 1.3 1.5 V
*
-
P
7 0.2 0.4 V
*
P-P
8
*
-
10 1dB
-
60-40 dB
0.7 1.4 2.1 V
P-P
55 110 165 mV
0.2 0.4 V
CC
-Id pin)
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MITSUMI
Video Amplifier MM1002
Notes :
1 Frequency response fc1, fc2, fc3
*
For the same conditions as the G
5MHz as V2, F
f
C1=20LOG dB
2 Character addition ······· input threshold voltage VTH13
*
C1 is obtained as follows. The same applies for fC2 and fC3.
V2
V1
For the same conditions as the V
TP7 pulse level when a character signal is output on TP4 is V
3 Chroma amp ······ crosstalk C
*
U1 measurement, given video output for 0.1MHz as V2, and for
CL measurement, adjust VR1 to raise pulse level gradually, and
TH13.
Given TP4 level when there is no pulse input as V3, and the level when pulse input exists as V4, C
is obtained as follows.
C=20LOG dB
4 Chroma amp ······ input threshold voltage VTH3
*
V4
V3
For the same conditions as C measurement, adjust VR2 to raise TP8 level from 0V. The TP8 level
when TP4 level changes at pulse input is V
5 Sync separation ······ sync separation level VSEPA
*
Input a 1VP
-
P staircase signal (no chroma signal) to SG-1, and gradually shrink the sync signal.
TP1 sync level when TP10 horizontal sync signal starts to disappear is V
TH3.
SEPA.
6 Sync separation ······ Pin 7 threshold voltage VTH7H, VTH7L
*
Impress external DC voltage on TP9 and raise gradually from 0V. TP9 level when TP11 level goes
from high to low is V
high is V
7 Sync separation ······· horizontal sync output voltage VOH6, VOL6
*
TH7L.
TP10 high level when a 1V
level is V
8 Sync separation ······ vertical sync output voltage VOH8, VOL8
*
OL6.
TP10 high level when a 1V
level is V
OL8.
TH7H. Lower gradually from 5V. TP9 level when TP11 level goes from low to
P
-
P staircase signal (no chroma signal) is input to SG-1 is VOH6, and low
P
-
P staircase signal (no chroma signal) is input to SG-1 is VOH8, and low
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MITSUMI
Measuring Circuit
Video Amplifier MM1002
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MITSUMI
Application Circuits
Video Amplifier MM1002
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