LM1889, LM1 Datasheet - National Semiconductor

LM1889, LM1, LM1889 TV Video Modulator

LM1889 TV Video Modulator PRELIMINARY April 1987 LM1889 TV Video Modulator General .
The LM1889 is designed to interface audio color difference and luminance signals to the antenna terminals of a TV receiver It consists of a sound subc.

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LM1-889.pdf

LM1889 Datasheet Preview — This datasheet PDF includes multiple part numbers: LM1889, LM1. Please refer to the document for exact specifications by model.

Datasheet Details

Part number:

LM1889, LM1

Manufacturer:

National Semiconductor

File Size:

190.31 KB

Description:

LM1889 TV Video Modulator

Note:

This datasheet PDF includes multiple part numbers: LM1889, LM1.
Please refer to the document for exact specifications by model.

Features

* Y dc channel switching Y 12V to 18V supply operation Y Excellent oscillator stability Y Low intermodulation products Y 5 Vp-p chroma reference signal Y May be used to encode composite video Block Diagram DC Test Circuit Dual-In-Line Package Order Number LM1889N See NS Package Number N18A TL H 7

Applications

* Information Subcarrier Oscillator The oscillator is a crystal-controlled design to ensure the accuracy and stability required of the subcarrier frequency for use with television receivers Lag-lead networks (R2C2 and C1R1) define a quadrature phase relationship between pins 1 and 18 at the subcarrier

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