SY87701VHH

Application Specific Clock/Timing Overview

The SY87701VHH is a Clock and Data Recovery (CDR) integrated circuit manufactured by Microchip Technology, housed in a 32-pin EPAD-TQFP package. It supports data rates from 32Mbps to 1.25Gbps NRZ with selectable 3.3V or 5V power supplies. The device features two on-chip PLLs for clock generation and recovery, differential PECL high-speed serial I/O, and link fault indication. It complies with Bellcore, ITU/CCITT, and ANSI specifications for SONET/SDH, ATM, Fibre Channel, and Gigabit Ethernet applications.

Application Specific Clock/Timing Feature Summary

• Clock and data recovery from 32Mbps up 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 no external buffering needed
• Complies with Bellcore, ITU/CCITT, and ANSI specifications

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 SY87701V series may be discontinued or not recommended for new designs. Confirm that the Pb-Free suffix 'HH' indicates NiPdAu lead finish. Ensure compatibility with commercial temperature range requirements of 0°C to +85°C. Check for moisture sensitivity handling instructions prior to assembly.

Application Specific Clock/Timing Selection Notes

Select the SY87701VHH when a 32-pin TQFP package is required for the design. Use this part for systems requiring both 3.3V and 5V supply options. Consider the SY87701AL if lower power consumption is needed for 3.3V-only systems. Ensure PCB layout accommodates the exposed pad for thermal dissipation.

Application Specific Clock/Timing Part Context

The SY87701VHH belongs to the SY87701V family of CDR devices originally developed by Micrel, Inc., which was later acquired by Microchip Technology. This family provides protocol-independent clock and data recovery for high-speed serial data transmission systems operating at rates up to 1.25Gbps.

Application Specific Clock/Timing Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.