LM1881 - Video Sync Separator

Datasheet Packaging Samples & Pricing Reliability Application Notes Knowledge Base

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)

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. More...


  Typical Application
click for larger image


Parametric Table     expand
Parametric Table    collapse
Function Sync Separator
Supported Video Formats NTSC , SECAM , Bi-level sync only, PAL
Supply Voltage 5 Volt
OtherSupply Voltage 5V to 12V
Temperature Min 0 deg C
Temperature Max 70 deg C
Function Sync Separator
Supported Video Formats NTSC , SECAM , Bi-level sync only, PAL
Supply Voltage 5 Volt
OtherSupply Voltage 5V to 12V
Temperature Min 0 deg C
Temperature Max 70 deg C
View Using Catalog


Typical Performance


click for larger image


  Also Recommended
LMH1980High Definition Compatibility, Smaller Form Factor Version
LMH1981High Definition Compatibility, Ultra-Low Jitter Version

Additional Resources


Application Notes (see below)


Connection Diagram


click for larger image



Datasheet
RoHS Compliance Information Size in KbytesDate Click link below to Download
LM1881 Video Sync Separator 688 Kbytes 3-May-06 Download

If you have trouble printing or viewing PDF file(s), see Printing Problems.


Package Availability, Models, Samples & Pricing
Part NumberPackageFactory Lead TimeModelsSamples &
Electronic
Orders
Budgetary PricingStd
Pack
Size
Package
Marking
Format
TypePinsSpec.MSL
Rating
Peak
Reflow
RoHS
Report
CAD
Symbols
WeeksQtyQty$US each
LM1881MSOIC NARROW8STD
NOPB
1
1
235
260
RoHS N/A Full productionN/A
Samples
Buy Now
1K+$1.42rail
of
95
NSZXTT
LM
1881M
6 weeks500
LM1881MXSOIC NARROW8STD
NOPB
1
1
235
260
RoHS N/A Full productionN/A
 
Buy Now
1K+$1.42reel
of
2500
NSZXTT
LM
1881M
6 weeks15000
LM1881NMDIP8STD
NOPB
1
1
NA
NA
RoHS N/A Full productionN/A
Samples
Buy Now
1K+$1.42rail
of
40
NSUZXYTT
LM1881N
6 weeks500

Obsolete Versions

Obsolete PartAlternate Part or SupplierSourceLast 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

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.

Reliability Metrics


Part Number Process EFR Reject EFR Sample Size PPM LTA Rejects LTA Device Hours FITS MTTF (Hours)
LM1881MSLM0427860033525002951281028
LM1881MXSLM0427860033525002951281028
LM1881NSLM0427860033525002951281028

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.

For more information on Reliability Metrics, please click here.


Application Notes


TitleSize in Kbytes Date Click link below to Download
AN-1681: Application Note 1681 Design Migration from the LM1881 to the LMH1980 143 Kbytes 2-Aug-07 Download
AN-1681 (Japanese): Application Note 1681 Design Migration from the LM1881 to the LMH1980
119 Kbytes   Download

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More Application Notes


TitleSize in Kbytes Date Click link below to Download
AN-402: LM2889 RF Modulator 210 Kbytes 4-Nov-95 Download

If you have trouble printing or viewing PDF file(s), see Printing Problems.

[Information as of 3-Jul-2009]