Intersil EL1881CS

СепараторПрофессиональное видеоNTSC, PAL, SECAM

Overview

The EL1881CS 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. 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 odd/even output indicates field polarity detected during the vertical blanking interval. The EL1881CS is plug-in compatible with the industry-standard LM1881 and can be substituted for that part in 5V applications with lower required supply current. The EL1881CS is available in the 8 Ld PDIP and SOIC packages and is specified for operation over the full -40°C to +85°C temperature range.

Features

Applications

• Industrial Video
• Video Capture, Editing, and Processing
• Genlock Circuits
• Surveillance & Security Video Systems
• Set-Top Boxes (STB) & Digital Video Recorders (DVR)
• Plasma Displays and Video Projectors
• Machine Vision and Inspection Systems
• Video Trigger Oscilloscopes and Waveform Monitors
• HDMI
• DVI Cable Extenders