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National Semiconductor LM1262 200 MHz I²C Compatible RGB Video Amplifier System Datasheet
The LM1262 is an integrated CMOS pre‑amplifier designed for CRT displays. It provides I²C‑compatible control of gain, contrast, brightness and black‑level clamping, and can be used with the LM246X driver family.
Key features include four external 8‑bit DACs for bias and brightness control, vertical‑blank‑synchronized updates, power‑save mode with up to 80 % reduction, and a 24‑lead DIP package. The datasheet lists absolute maximum ratings, video signal characteristics, OSD and DAC electrical parameters, pin descriptions, register maps, and mechanical dimensions.
National Semiconductor LM1262 specifications
| Video Amplifier Bandwidth (‑3 dB) | 200 MHz |
|---|---|
| Supply Voltage (Vcc) Range | 4.75 V – 5.25 V |
| Maximum Junction Temperature | 150 °C |
| Video Input Voltage Range | 0.0 V – 1.0 V |
| Video Signal Output Amplitude | 2 Vp‑p |
| Package Type | 24‑lead DIP molded plastic |
Source: National Semiconductor LM1262 200 MHz I²C Compatible RGB Video Amplifier System Datasheet
All National Semiconductor LM1262 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the maximum operating temperature of the LM1262?
The device is rated for a maximum junction temperature of 150 °C.
From: National Semiconductor LM1262 200 MHz I²C Compatible RGB Video Amplifier System Datasheet
How many external DACs does the LM1262 provide?
It provides four external 8‑bit DACs for bus‑controlled bias and brightness.
From: National Semiconductor LM1262 200 MHz I²C Compatible RGB Video Amplifier System Datasheet
How much power is saved in Power‑Save mode?
Power‑Save (Green) mode reduces power consumption by about 80 %.
From: National Semiconductor LM1262 200 MHz I²C Compatible RGB Video Amplifier System Datasheet
What package does the LM1262 use?
It is supplied in a 24‑lead DIP molded plastic package.
From: National Semiconductor LM1262 200 MHz I²C Compatible RGB Video Amplifier System Datasheet