LM1203 RGB Video Amplifier System

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The LM1203 is a wideband video amplifier system intender for high-resolution RGB color monitor applications. In addition to three matched video amplifiers, the LM1203 contains three gated differential input black level clamp comparators for brightness control and three matched attenuator circuits for contrast control. Each video amplifier contains again set or ‘‘Drive’’ node for setting maximum system gain as well as providing trim capability. The LM1203 also contains a voltage reference for the video inputs.

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LM1203 Pinout

LM1203 Pin Configuration

Pin No	Pin Name	Description
1	VCC 1	Voltage Supply Pin 1
2	CONTRAST CAP	Contrast Cap Pin
3	CONTRAST CAP	Contrast Cap Pin
4	R VIDEO IN	R Video Input Pin
5	R CLAMP CAP	R Clamp Cap Pin
6	G VIDEO IN	G Video Input Pin
7	GND	Ground Pin
8	G CLAMP CAP	G Clamp Cap Pin
9	B VIDEO IN	B Video Input Pin
10	B CLAMP CAP	B Clamp Cap Pin
11	VREF	Reference Voltage Pin
12	CONTRAST	Contrast Pin
13	VCC 1	Voltage Supply Pin 1
14	CLAMP GATE	Clamp Gate Pin
15	B CLAMP +	B Clamp Positive Pin
16	B VIDEO OUT	B Video-Output Pin
17	B CLAMP –	B Clamp Negative Pin
18	B DRIVE	B Drive Pin
19	G CLAMP +	G Clamp Positive Pin
20	G VIDEO OUT	G Video Output Pin
21	G CLAMP –	G Clamp Negative Pin
22	G DRIVE	G Drive Pin
23	VCC 2	Voltage Supply Pin 2
24	R CLAMP +	R Clamp Positive Pin
25	R VIDEO OUT	R Video Output Pin
26	R CLAMP –	R Clamp Negative Pin
27	R DRIVE	R Drive Pin
28	VCC 2	Voltage Supply Pin 2