SY10E195JZ

Overview

The SY10E195JZ is a programmable delay chip (PDC) from the Precison Edge series, designed for clock de-skewing and timing adjustment in high-performance ECL systems. It provides a variable delay range of up to 2ns with approximately 20ps digital step resolution. The device operates on an extended VEE range of –4.2V to –5.5V and supports frequencies exceeding 1GHz while maintaining over 600mV output swing. It features seven address inputs for delay selection, latched by a control signal, and includes internal cascade circuitry for expanding the programmable range across multiple units.

Feature Summary

• Provides digitally selectable variable delay for differential ECL input transitions
• Features internal cascade logic for multi-chip expansion without external gating
• Includes on-chip 75KΩ input pulldown resistors for compatibility
• Offers fine resolution delay steps via latched address inputs

Applications

• Clock de-skewing in high-speed data communication systems
• Timing adjustment for precise system clock alignment
• Programmable delay lines in ECL-based logic circuits

Procurement Notes

Verify component authenticity through authorized Microchip Technology distributors or direct channels. Confirm that the ordering suffix 'JZ' corresponds to the Pb-Free package with Matte-Sn finish as specified in the datasheet. Ensure compliance with RoHS directives if required for the specific application environment.

Selection Notes

Select this component when precise, digitally adjustable delay is required for differential ECL signals. Consider the 28-pin PLCC package constraint and verify that the operating temperature range meets system requirements. Evaluate the need for cascading capabilities if the maximum single-device delay range is insufficient for the design.

Part Context

This part belongs to the Micrel SY10/100E series of Precision Edge components, which are now managed under Microchip Technology following acquisition. The SY10E195 specifically addresses the need for programmable delay in legacy and specialized high-speed ECL applications where fixed delay elements lack necessary flexibility.

Replacement Considerations

The datasheet indicates full compatibility with Motorola MC10E/100E195 devices. Designers should verify pinout and electrical parameter equivalence before substituting with other programmable delay chips or equivalent parts from different manufacturers.