SY87701LZG-TR

Application Specific Clock/Timing Overview

The SY87701LZG-TR is a Clock and Data Recovery (CDR) integrated circuit manufactured by Microchip Technology, operating on a 3.3V supply within an industrial temperature range of –40°C to +85°C. It supports data rates from 32Mbps up to 1.25Gbps for NRZ streams. The device features two on-chip PLLs for clock generation and recovery, selectable reference frequencies, and differential PECL high-speed serial I/O. Packaged in a 28-pin SOIC with a Pb-Free NiPdAu finish, it includes link fault indication and ECL 100k compatible I/O.

Application Specific Clock/Timing Feature Summary

• Clock and data recovery from 32Mbps to 1.25Gbps NRZ data stream
• Two on-chip PLLs: one for clock generation and another for clock recovery
• Differential PECL high-speed serial I/O with 100k ECL compatibility
• Link fault indication and selectable reference frequencies

Application Specific Clock/Timing Applications

• SONET/SDH/ATM OC-1, OC-3, OC-12, OC-24
• Fibre Channel, Escon, SMPTE 259
• Gigabit Ethernet/Fast Ethernet
• Proprietary architecture up to 1.25Gbps

Application Specific Clock/Timing Procurement Notes

Verify the component status as the SY87701L family is marked as obsolete or end-of-life by the manufacturer. Confirm availability through authorized distributors or secondary markets. Ensure the specific 'ZG' suffix matches the required Pb-free package specifications and that the tape-and-reel quantity aligns with production needs.

Application Specific Clock/Timing Selection Notes

Select this part for designs requiring AnyRate clock recovery up to 1.25Gbps. Note that the datasheet explicitly states the 28-pin SOIC package is not recommended for new designs; consider the SY87701AL series or alternative packages like TQFP for future projects. Verify power supply requirements match the 3.3V specification and check thermal resistance limits for the SOIC package.

Application Specific Clock/Timing Part Context

This component belongs to the SY87701L family of Clock and Data Recovery ICs originally developed by Micrel, Inc., which was later acquired by Microchip Technology. The 'ZG' suffix indicates a lead-free package with a NiPdAu bar line indicator, while 'TR' denotes the tape-and-reel packaging format.

Application Specific Clock/Timing Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. The datasheet recommends using the lower-power SY87701AL for new designs.