LM1269 110MHz I2C Compatible RGB Video Amplifier System with OSD & DACs
The LM1269 is an integrated CMOS CRT pre‑amplifier designed for RGB video applications. It provides I²C‑compatible control of gain, contrast, brightness and bias, and includes four external 8‑bit DACs for bus‑controlled adjustments. The device works with the LM246X driver family and features a power‑save (Green) mode that reduces consumption by about 80 %.
Typical applications include low‑end 14‑ to 17‑inch bus‑controlled monitors with OSD and 1024 × 768 displays up to 70 Hz. The IC is supplied in a standard 24‑lead DIP molded plastic package and includes detailed electrical characteristics, pin descriptions, timing diagrams, and register definitions for system integration.
| Bandwidth | 110 MHz |
|---|---|
| Package | 24‑lead DIP molded plastic |
| Supply Voltage (Vcc) | 4.7 V to 5.25 V |
| Video Output Amplitude | 2 Vp‑p |
| External DACs | 4 × 8‑bit DACs |
| Power‑Save Mode | 80 % power reduction |
The LM1269 provides a bandwidth of 110 MHz.
It is supplied in a 24‑lead DIP molded plastic package.
The device operates with a supply voltage between 4.7 V and 5.25 V.
Yes, it includes a Power Save (Green) Mode that reduces power consumption by about 80 %.