Datasheet4U Logo Datasheet4U.com

LM1886 - TV Video Matrix D to A

General Description

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

Key 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 Package Number N20A TL H 7916.
  • 1 C1995 National Semiconductor Corporation TL H 7916 RRD-B30M115 Printed in U S A Absolute Maximum Ratings If Military Aerospace specified devices are require.

📥 Download Datasheet

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
LM1886 TV Video Matrix D to A April 1987 LM1886 TV Video Matrix D to A General Description 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 and burst gate polarity switch allow European PAL compatible signals to be encoded All output levels including an RF O Carrier Bias Voltage have been referenced to 5V for direct connection to the LM1889 TV video modulator When used in combination with the LM1889 and a suitable sync generator 3-bit R G and B information may be encoded to both composite video and RF channel carrier Features Y Complete d