NATIONAL SEMICONDUCTOR LM1881 User's Manual
Summary
The LM1881 is a specialized video synchronization separator IC designed to extract crucial time-based signals, including composite and vertical sync, from NTSC, PAL, and SECAM standards. It accurately provides timing information for burst/back porch and odd/even fields, making it essential for processing various signal types. This manual serves as a comprehensive technical reference for engineers involved in video signal integration, detailing electrical specs, operating ratings, and connection guides necessary for reliable system design.
Manual Details
| Brand | National |
|---|---|
| Pages | 12 |
| File Size | 688.80 KB |
| Published | June 06, 2026 |
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Frequently Asked Questions
What synchronization signals does the LM1881 separate?
It extracts timing information including composite sync, vertical sync, burst/back porch, and odd/even field data.
Can this component be used in life support systems?
No; National warns that its products are not authorized for use as critical components in life support devices without express written approval.
How does the device handle non-standard video signals?
It features a default vertical output that activates after an externally set delay if the rising edge indicating sync is not detected.