EL1883

Sync Separator with Horizontal Output

OVERVIEW

The EL1883 video sync separator is manufactured using Elantec's high performance analog CMOS process. This device extracts sync timing information from both standard and non-standard video input and also in the presence of Macrovision pulses. It provides composite sync, vertical sync, burst/back porch timing, and horizontal outputs. Fixed 70mV sync tip slicing provides sync edge detection when the video input level is between 0.5VP-P and 2VP-P (sync tip amplitude 143mV to 572mV). A single external resistor sets all internal timing to adjust for various video standards. The composite sync output follows video in sync pulses and a vertical sync pulse is output on the rising edge of the first vertical serration following the vertical pre-equalizing string. For non-standard vertical inputs, a default vertical pulse is output when the vertical signal stays low for longer than the vertical sync default delay time. The horizontal output gives horizontal timing with pre/post equalizing pulses.

The EL1883 is available in an 8-pin SO package and is specified for operation over the full -40°C to +85°C temperature range.

KEY FEATURES

  • NTSC, PAL, SECAM, non-standard video sync separation
  • Fixed 70mV slicing of video input levels from 0.5VP-P to 2VP-P
  • Low supply current - 1.5mA typ.
  • Single 3V to 5V supply
  • Composite sync output
  • Vertical output
  • Horizontal output
  • Burst/back porch output
  • Macrovision compatible
  • Available in 8-pin SO package
  • Pb-Free plus anneal available (RoHS compliant)

BLOCK DIAGRAM

 Block Diagram

PARAMETRICS

Parameters
EL1883
Basic Information
生产状态
Mass Production
固定切片 (70mV)
Yes
切片输入自适应
No
颜色突发滤波器 - 外部
Yes
输出复合
Yes
输出水平
Yes
输出垂直
Yes
输出突发
Yes
输出奇/偶
No
输出同步幅度
No
总传播延迟
30 ns
IS
1.2 mA
资质级别
Standard
CAN 采样
YES
温度范围
-40 to +85

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