The EL4511 sync separator IC is designed for operation in the next generation of DTV, HDTV, and projector applications, as well as broadcast equipment and other applications where video signals need to be processed. The EL4511 accepts sync on green, separate sync, and H/V sync inputs, automatically selecting the relevant format. It is also capable of detecting and decoding tri-level syncs used with the latest HD systems. Unlike standard sync separators, the EL4511 can automatically detect the line rate and locks to it, without the use of an external RSET resistor. The EL4511 is available in a 24-pin QSOP package and operates over the full 0°C to 70°C temperature range.


  • Composite, component, HDTV, and PC signal-compatible
  • Tri-level & bi-level sync-compatible
  • Auto sync detection
  • 150kHz max line rate
  • Low power
  • Small package outline
  • 3.3V and 5V operation
  • Pb-free available (RoHS compliant)


  • HDTV/DTV analog inputs Video projectors Computer monitors Set top boxes Security video Broadcast video equipment

tuneProduct Options

Part Number Part Status Pkg. Type Carrier Type MOQ Buy Sample
Active QSOP Tube 55
Last Time Buy QSOP Reel 2500
Active QSOP Reel 1000
Last Time Buy QSOP Reel 250


Title language Type Format File Size Date
Datasheets & Errata
star EL4511 Datasheet Datasheet PDF 1.10 MB
Application Notes & White Papers
AN1695: Basics of Video: from Simple Analog to HDTV Application Note PDF 644 KB
AN1099: A Simple Circuit Removes Sync Application Note PDF 311 KB
AN9738: Video Module Interface (VMI) for ICs Application Note PDF 320 KB
AN9759: Signal Processing Blocks - A Tutorial Application Note PDF 1002 KB
AN9764: PALplus Overview Application Note PDF 250 KB
AN9644: Composite Video Separation Techniques Application Note PDF 2.79 MB
AN9741: Basic DACs for Electronic Engineers Application Note PDF 410 KB
PLC21035 - End of Life Notice Product Life Cycle Notice PDF 1.17 MB
PCN12091 - QSOP and SC-70 from Unisem to CAM as alternate assembly site Product Change Notice PDF 529 KB
PIN19028 - Q3 Cy 19 Price Increase Notice Price Increase Notice PDF 208 KB
TB410: Using the EL4511 Demo Board Other PDF 362 KB