National Semiconductor LM126 Manuals

National Semiconductor LM1269 Datasheet

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.