The EL4583 extracts timing from video sync in NTSC, PAL, and SECAM systems, and non standard formats, or from computer graphics operating at higher scan rates. Timing adjustment is via an external resistor. Input without valid vertical interval (no serration pulses) produces a default vertical output. Outputs are: composite sync, vertical sync, filter, burst/back porch, horizontal, no signal detect, level, and odd/even output (in interlaced scan formats only). The EL4583 sync slice level is set to the mid-point between sync tip and the blanking level. This 50% point is determined by two internal sample and hold circuits that track sync tip and back porch levels. It provides hum and noise rejection and compensates for input levels of 0. 5V to 2. 0VP-P. A built in filter attenuates the chroma signal to prevent color burst from disturbing the 50% sync slice. Cut off frequency is set by a resistor to ground from the Filter Cut Off pin. Additionally, the filter can be by-passed and video signal fed directly to the Video Input. The level output pin provides a signal with twice the sync amplitude which may be used to control an external AGC function. A TTL/CMOS compatible No Signal Detect Output flags a loss or reduction in input signal level. A resistor sets the Set Detect Level. The EL4583 is manufactured using Elantec's high performance analog CMOS process.

特性

  • NTSC, PAL, and SECAM sync separation
  • Single supply, +5V operation
  • Precision 50% slicing
  • Built-in programmable color burst filter
  • Decodes non-standard vertical
  • Horizontal sync output
  • Sync. pulse amplitude output
  • Same socket can be used for 8-pin EL4581
  • Low-power CMOS
  • Detects loss of signal
  • Resistor programmable scan rate
  • Few external components
  • Available in 16-pin PDIP and 16-pin SO (0.150") packages
  • Pb-Free Plus Anneal Available (RoHS Compliant)

应用

  • Video special effects
  • Video test equipment
  • Video distribution
  • Multimedia
  • Displays
  • Imaging
  • Video data capture
  • Video triggers

description文档

文档标题 language 类型 文档格式 文件大小 日期
数据手册与勘误表
star EL4583 Datasheet 数据手册 PDF 575 KB
应用指南 & 白皮书
AN1695: Basics of Video: from Simple Analog to HDTV 应用文档 PDF 644 KB
AN1095: Temperature Compensation for the EL4581 and EL4583 应用文档 PDF 228 KB
AN1099: A Simple Circuit Removes Sync 应用文档 PDF 311 KB
AN9738: Video Module Interface (VMI) for ICs 应用文档 PDF 320 KB
AN9759: Signal Processing Blocks - A Tutorial 应用文档 PDF 1002 KB
AN9764: PALplus Overview 应用文档 PDF 250 KB
AN9644: Composite Video Separation Techniques 应用文档 PDF 2.79 MB
AN9741: Basic DACs for Electronic Engineers 应用文档 PDF 410 KB
PCN / PDN
PCN12085 - 8l, 14l, 16l SOIC w/ Gold Bond Wire @ ATP as Alternate Assembly Site 产品变更通告 PDF 152 KB
其他
PIN19028 - Q3 Cy 19 Price Increase Notice Price Increase Notice PDF 208 KB
TB430: Video Sync Separator, Horiz Genlock 其他 PDF 165 KB