LM1881 Video Sync Separator | TI.com

This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.
Video Sync Separator

Video Sync Separator - LM1881


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.


  • 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


Compare all products in Serial digital interface (SDI) Email Download to Excel
Part number Order Function Power consumption (mW) Control interface Package Group Package size: mm2:W x L (PKG) Operating temperature range (C)
LM1881 Order now Sync separator     25     Pin     PDIP | 8
SOIC | 8    
8PDIP: 93 mm2: 9.43 x 9.81 (PDIP | 8)
8SOIC: 19 mm2: 3.91 x 4.9 (SOIC | 8)    
0 to 70    
LMH1980 Order now Sync separator     35     Pin     VSSOP | 10     10VSSOP: 9 mm2: 3 x 3 (VSSOP | 10)     -40 to 85    
LMH1981 Order now Sync separator     30     Pin     TSSOP | 14     14TSSOP: 32 mm2: 6.4 x 5 (TSSOP | 14)     -40 to 85