Service manual SC-150
-41-
4-10 MM1118
4-10-1 General description
This is a 3-input, 1-output video switch IC with a clamp function and built-in 6dB amp, for video signal switching.
One of the inputs also has a mute function.
4-10-2 Features
-Built-in 6dB amp
-Clamp function
-Mute function
-Current consumption: 5.1mA typ.
-Operating power supply voltage range: 4.6~13.0V
-Frequency response: 10MHz
-Crosstalk: 64dB (at 4.43MHz)
4-10-3 Block diagram
4-10-4 Pin Description
1
2
3
4
5
6
7
8
IN3
Vcc
OUT
GND
IN1
SW1
IN2
SW2
SW1
Control input trurh table
L
H
L
L
H
IN1
IN2
IN3
"
SW2
OUT
Clamp
Clamp
Clamp
SW
SW
Buffer
Bias
Pin
Symbol
Description
Input1
5
IN1
7
IN2
Input2
1
IN3
Input3
6
SW1
Switch1
8
SW2
Switch2
2
Vcc
Power supply
3
OUT
Output
Ground
4
GND
Summary of Contents for CHASSIS : SC-150 Model : DSC-3220E
Page 35: ...Service manual SC 150 34 Block diagram TDA6107Q...
Page 44: ...Service manual SC 150 43 5 Circuit description 5 1 Block diagram...
Page 62: ...Service manual SC 150 61 5 9 2 2 STR F6654 oscillating operation...
Page 82: ...Service manual SC 150 81 8 1 PCB MAIN...
Page 83: ...Service manual SC 150 82 8 2 PCB UNION...
Page 84: ...Service manual SC 150 83 9 1 Schematic Diagram MAIN...
Page 85: ...Service manual SC 150 84 9 2 Schematic Diagram UNION...
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