EL1881CSZ

Overview

The EL1881CSZ is a video sync separator manufactured using Elantec’s high-performance analog CMOS process. It extracts sync timing information from standard and non-standard video inputs, providing composite sync, vertical sync, burst/back porch timing, and odd/even field detection. The device features fixed 70mV sync tip slicing for edge detection when the video input level ranges between 0.5VP-P and -2VP-P. A single external resistor sets all internal timing to accommodate various video standards. It operates on a single +5V supply with a typical supply current of 1.5mA.

Feature Summary

• Extracts sync timing from standard and non-standard video inputs
• Provides composite, vertical, and burst/back porch outputs
• Includes odd/even field detection capability
• Utilizes fixed 70mV sync tip slicing for reliable edge detection

Applications

• Video amplifiers
• PCMCIA applications
• A/D drivers
• Line drivers
• Portable computers

Procurement Notes

Verify the specific suffix 'Z' indicates lead-free (RoHS compliant) packaging as per Renesas/Elantec conventions. Confirm the SOIC-8 package dimensions match your PCB footprint requirements. Ensure the single +5V supply voltage aligns with your system design. Check for end-of-life status or obsolescence notices from the manufacturer before finalizing procurement plans.

Selection Notes

Select this component when precise sync separation is required for NTSC, PAL, or SECAM signals without complex external timing circuits. The fixed 70mV slicing simplifies design for inputs within the specified amplitude range. Consider the low power consumption and single-supply operation for portable or battery-powered video systems. Verify compatibility with downstream logic levels for the provided sync outputs.

Part Context

The EL1881CSZ belongs to the EL1881 series of sync separators originally developed by Elantec Semiconductor, which was acquired by Intersil and subsequently integrated into Renesas Electronics. This family of devices is designed for extracting synchronization signals from composite video sources, serving as a critical interface in video processing chains where timing accuracy is essential for display or recording applications.

Replacement Considerations

Cross-reference with EL1881CN or EL1881CS for pin-compatible alternatives. Verify functional equivalence regarding sync extraction capabilities and output types. Ensure package compatibility if substituting with different suffixes.