HomedatasheetLM1881MX

LM1881MX Datasheet

Video Sync Separator
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Description

General Description
The LM1881 Video sync separator extracts timing information including composite and vertical sync, burst/back porch timing, and odd/even field information from standard negative going sync NTSC, PAL*, and SECAM video signals with amplitude from 0.5V to 2V p-p. The integrated circuit is also capable of providing sync separation for non-standard, faster horizontal rate video signals. The vertical output is produced on the rising edge of the first serration in the vertical sync period. A default vertical output is produced after a time delay if the rising edge mentioned above does not occur within the externally set delay period, such as might be the case for a non-standard video signal.

Features
■ AC coupled composite input signal
■ l10 kX input resistance
■ k10 mA power supply drain current
■ Composite sync and vertical outputs
■ Odd/even field output
■ Burst gate/back porch output
■ Horizontal scan rates to 150 kHz
■ Edge triggered vertical output
■ Default triggered vertical output for non-standard video
   signal (video games-home computers)

Features

Parameters

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Manufacturer information

NATIONAL ->TEXAS INSTRUMENTS
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