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Product details

Parameters

Function Sync separator Power consumption (mW) 25 Control interface Pin Operating temperature range (C) 0 to 70 open-in-new Find other Serial digital interface (SDI) ICs

Package | Pins | Size

SOIC (D) 8 19 mm² 4.9 x 3.9 open-in-new Find other Serial digital interface (SDI) ICs

Features

  • AC Coupled Composite Input Signal
  • >10-kΩ Input Resistance
  • <10-mA Power Supply Drain Current
  • Composite Sync and Vertical Outputs
  • Odd and Even Field Output
  • Burst Gate or 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)
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Description

The LM1881 Video sync separator extracts timing information including composite and vertical sync, burst or back porch timing, and odd and even field information from standard negative going sync NTSC, PAL(1) and SECAM video signals with amplitude from 0.5-V to 2-V 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.

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Technical documentation

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Type Title Date
* Datasheet LM1881 Video Sync Separator datasheet (Rev. G) Jun. 30, 2015
Application notes Migrating From the LM1881 to the LMH1980 (Rev. A) May 03, 2013

Design & development

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CAD/CAE symbols

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PDIP (P) 8 View options
SOIC (D) 8 View options

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