Features • AC coupled composite input signal • >10 k input resistance • <10 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) 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.

Also Recommended LMH1980▲ High Definition Compatibility, Smaller Form Factor Version LMH1981▲ High Definition Compatibility, Ultra-Low Jitter Version MY BRIEFCASE                                       Click any "Briefcase" icon to add an item

Typical Application click for larger image	Connection Diagram click for larger image
Typical Performance click for larger image

Datasheet

Title		Size	Date	Other Language
	LM1881 Video Sync Separator	688 Kbytes	3-May-06

Featured Application Notes

Title		Size	Date	Other Language
	AN-1681: Application Note 1681 Design Migration from the LM1881 to the LMH1980	143 Kbytes	2-Aug-07	日本語

More Application Notes

Title		Size	Date	Other Language
	AN-402: LM2889 RF Modulator	210 Kbytes	4-Nov-95

Part Number(s) (NSID)	Top View	Availability	Current Reported Stock	Budgetary Pricing	Standard Pack Size
LM1881M/NOPB LM1881M RoHS	SOIC NARROW	Full production Lead Time: 6 weeks	Distributor Region Qty ARROW Worldwide 1948 AVNET-EM Worldwide 369 BRITESTONE South Korea 2 DIGIKEY Worldwide 5 FARNELL Europe and Asia 2102 FUTURE Worldwide 1100 RS COMPONENTS Worldwide 283 TAYLOR Americas 251	$1.42 each at 1K+ pcs	rail of 95
LM1881MX/NOPB RoHS	SOIC NARROW	Full production Lead Time: 6 weeks	Distributor Region Qty AVNET-EM Worldwide 2500 BRITESTONE South Korea 10516 DIGIKEY Worldwide 3661 FUTURE Worldwide 1100 KEIKONG Asia Pacific 47500 TECHMOSA Asia Pacific 5000	$1.42 each at 1K+ pcs	reel of 2500
LM1881N/NOPB LM1881N RoHS	MDIP	Full production Lead Time: 6 weeks	Distributor Region Qty AECO TECH Asia Pacific 1000 ARROW Worldwide 240 AVNET-EM Worldwide 65 BRITESTONE South Korea 322 DIGIKEY Worldwide 545 FARNELL Europe and Asia 811 FUTURE Worldwide 1100 KEIKONG Asia Pacific 14560 NEWARK Americas 674 RS COMPONENTS Worldwide 335 TAYLOR Americas 241	$1.42 each at 1K+ pcs	rail of 40

Obsolete Versions

Obsolete Part	Alternate Part or Supplier	Source	Last Time Buy Date
LM1881M-X	LMH1980MM	NATIONAL SEMICONDUCTOR	23 Feb 2007
LM1881MX-X	LMH1980MM	NATIONAL SEMICONDUCTOR	23 Feb 2007
LM1881N-X	LMH1980MM	NATIONAL SEMICONDUCTOR	23 Feb 2007

Reliability Metrics

Part Number	Process	EFR Reject	EFR Sample Size	PPM	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
LM1881M	SLM	0	44046	0	0	3532500	1	1002356520
LM1881MX	SLM	0	44046	0	0	3532500	1	1002356520
LM1881N	SLM	0	44046	0	0	3532500	1	1002356520

Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR. The Long Term Failure Rates were calculated at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress temperature of 150°C to an application temperature of 55°C.

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Obsolete Versions

Obsolete Part	Alternate Part or Supplier	Source	Last Time Buy Date
LM1881M-X	LMH1980MM	NATIONAL SEMICONDUCTOR	23 Feb 2007
LM1881MX-X	LMH1980MM	NATIONAL SEMICONDUCTOR	23 Feb 2007
LM1881N-X	LMH1980MM	NATIONAL SEMICONDUCTOR	23 Feb 2007