LM1886 Datasheet - National Semiconductor

LM1886 TV Video Matrix D to A

The LM1886 is a TV video matrix D to A converter which encodes luminance and color difference signals from 3-bit red green and blue inputs The luminance output is encoded from the NTSC equation Y e 0 3R a 0 59G a 0 11B and the R-Y and B-Y outputs are weighted to prevent overmodulation A built-in R-Y.

LM1886 Features

* Y Complete digital to RF coding with LM1889 Y 1-pin PAL NTSC mode select Y True NTSC matrix Y 8 levels of grey scale Y Allows wide range of colorimetry Y Low power TTL inputs Y Wideband luminance output Y Weighted R-Y B-Y outputs Connection Diagram Top View FIGURE 1 Order Number LM1886N See NS Pac

LM1886_NationalSemiconductor.pdf