General Description

The EL1881C 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. It provides composite sync, vertical sync, burst/back porch timing, and odd/even field detection. 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.

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 +5V supply

• Composite, vertical sync output

• Odd/even field output

• Burst/back porch output

• Available in 8-pin PDIP and SO packages

Applications

• Video amplifiers

• PCMCIA applications

• A/D drivers

• Line drivers

• Portable computers

• High-speed communications

• RGB applications

• Broadcast equipment

• Active filtering