SY69753LHC

Application Specific Clock/Timing Overview

The SY69753LHC is a Clock and Data Recovery (CDR) IC designed for high-performance Ethernet, SONET/SDH, and ATM OC-3 applications. It operates with a single circuit configuration and supports a maximum frequency of 155Mbps. The device accepts PECL differential input signals and provides three PECL differential outputs, maintaining a 1:3 input-to-output ratio. It functions within a supply voltage range of 3.15V to 3.45V and is rated for an operating temperature range of -40°C to 85°C. The component is housed in a 32-TQFP-EP package with exposed pads measuring 7x7 mm.

Application Specific Clock/Timing Feature Summary

• Integrated clock recovery and multiplexing functionality for synchronous optical networking standards
• Supports differential PECL signaling on both input and output channels
• Includes phase-locked loop (PLL) circuitry for stable signal regeneration

Application Specific Clock/Timing Applications

• SONET/SDH network infrastructure equipment
• ATM OC-3 interface modules
• High-speed Ethernet data transmission systems

Application Specific Clock/Timing Procurement Notes

Verify the specific suffix 'LHC' against official Microchip documentation to confirm pinout compatibility and package dimensions. Confirm RoHS compliance status as listed sources indicate non-compliance. Check current lifecycle status, as this component may be discontinued or subject to last-time buy restrictions. Ensure design-in review covers thermal requirements for the TQFP-EP package.

Application Specific Clock/Timing Selection Notes

Select this component when designing systems requiring precise clock recovery for OC-3 speeds. Verify that the PECL logic levels match the system's voltage domain. Consider the 32-pin footprint constraints during PCB layout. Evaluate alternative parts if RoHS compliance is mandatory for the target market.

Application Specific Clock/Timing Part Context

This part belongs to the SY69753 family of application-specific timing ICs from Microchip Technology. These devices are engineered for telecommunications and data communication interfaces requiring reliable signal integrity at specific standard rates.

Application Specific Clock/Timing Replacement Considerations

Public confirmed substitute part numbers are not available.