Key facts
- Model
- LM1269
- Industry
- Industrial
- Documents
- 3
- Languages
- EN
- Last added
- 2012-05-02
Start here
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.
National Semiconductor LM1269 specifications
| 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 |
All National Semiconductor LM1269 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the bandwidth of the LM1269?
The LM1269 provides a bandwidth of 110 MHz.
What package does the LM1269 use?
It is supplied in a 24‑lead DIP molded plastic package.
What is the bandwidth of the LM1269 video amplifier?
The LM1269 provides a 110 MHz bandwidth for video amplification.
What package type does the LM1269 use?
The LM1269 is supplied in a 24‑lead DIP molded plastic package.
What is the bandwidth of the LM1269 video amplifier?
The LM1269 provides a bandwidth of 110 MHz.
From: National Semiconductor LM1269 Video Amplifier Datasheet
How many external DACs does the LM1269 have and what resolution are they?
It has four external DACs, each 8‑bit.
From: National Semiconductor LM1269 Video Amplifier Datasheet