Sync separator for composite video
The Texas Instruments LM1881N/NOPB extracts composite sync, vertical sync, burst/back-porch timing, and odd/even field information from standard-definition video waveforms. It handles NTSC, PAL, and SECAM formats — the three broadcast standards that cover the majority of legacy and current SD video equipment. Running from a 5V to 12V supply, the part integrates the clamping and separator circuitry into a single 8-pin DIP. That means a board with a composite video input — from a camera, VCR, or baseband video source — can feed the LM1881 the raw signal and get clean TTL-level sync pulses out without external filtering or level-shifting.
Through-hole package and supply range
The 8-DIP (0.300", 7.62mm) body is a standard through-hole footprint — 100-mil pin spacing, 0.100-inch row spacing. It protrudes 0.150 inches above the board, which matters for card-cage or mezzanine assemblies where component height is constrained. Supply voltage tolerance from 5V to 12V means the same BOM line works in a 5V logic system or a 12V analog video chassis. The part draws its operating current from the rail; the sync output swings rail-to-rail, so the logic-family threshold must match the supply voltage used.
Active lifecycle and compliance
The NOPB suffix confirms RoHS3 compliance (lead-free), so the part ships without exemption declarations for most global markets.