EL4583CS

Overview

The EL4583CS is a video sync separator IC manufactured by Renesas Electronics Corporation, housed in a 16-SOIC package. It operates on a single +5V supply and supports NTSC, PAL, and SECAM standards. The device extracts timing from composite video signals using internal sample-and-hold circuits to establish a precision 50% slice level between the sync tip and blanking level. Key outputs include composite sync, vertical sync, horizontal sync, burst/back porch, odd/even field detection, and a no-signal detect flag. Timing functions are resistor-programmable via an external RSET component.

Feature Summary

• Extracts timing from NTSC, PAL, and SECAM video sync signals
• Features built-in programmable color burst filter for hum and noise rejection
• Provides TTL/CMOS compatible digital outputs including horizontal and vertical sync
• Detects loss of signal with adjustable threshold levels

Applications

• Video special effects processing
• Video test equipment synchronization
• Video distribution systems
• Multimedia display interfaces
• Video data capture triggers

Procurement Notes

Verify current availability status as this component may be subject to discontinuation or limited stock conditions. Confirm that the 16-SOIC package dimensions match your PCB footprint requirements. Ensure proper electrostatic discharge handling procedures are followed during assembly due to CMOS sensitivity. Check RoHS compliance documentation if required for specific manufacturing environments.

Selection Notes

Select this component when precise sync separation is required for standard analog video formats. The integrated sample-and-hold circuitry simplifies design by eliminating external filtering components for basic applications. Consider the resistor-programmable scan rate capability if operating at non-standard frequencies. Verify power supply stability as the device relies on a clean +5V rail for accurate slice level determination.

Part Context

The EL4583 belongs to the Intersil/Renesas video processing family, specifically designed for sync extraction tasks. It shares functional compatibility with other devices in the series but offers distinct output configurations. The SOIC package variant provides surface-mount convenience compared to through-hole alternatives. This part represents a specialized solution for professional video signal conditioning rather than general-purpose logic applications.

Replacement Considerations

Direct pin-compatible replacements within the same package type should be verified against official substitution lists. Cross-reference electrical specifications such as supply voltage and output drive capabilities before implementation. Ensure any substitute maintains the same sync separation accuracy and filter characteristics.