ICS843034AY-01LF

Clock Generators, PLLs, Frequency Synthesizers Overview

The ICS843034AY-01LF is a multi-rate LVPECL frequency synthesizer featuring a fully integrated PLL and a 4:1 input multiplexer. It accepts differential, single-ended, or crystal inputs to generate frequencies between 30.625MHz and 640MHz. The device provides two independent differential LVPECL output pairs with dedicated power supply pins for 3.3V or 2.5V operation. It supports serial or parallel programming of feedback and output dividers. Typical RMS phase jitter is 0.61ps at 106.25MHz over the 637kHz to 5MHz range.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Dual differential LVPECL outputs with independent 3.3V/2.5V power supply selection
• 4:1 Input Mux supporting differential, single-ended, and dual crystal interfaces
• Integrated PLL with VCO range of 490MHz to 640MHz
• Serial or parallel programming interface for divider configuration

Clock Generators, PLLs, Frequency Synthesizers Applications

• Fibre Channel systems requiring FEC and non-FEC rate support
• SONET network equipment
• Ethernet and 1Gb Ethernet applications

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the 'LF' suffix indicates lead-free RoHS compliance as specified in the datasheet features. Confirm the package type matches the 48-pin LQFP (7mm x 7mm) dimensions. Ensure the operating temperature range meets the 0°C to 70°C requirement for the specific application environment.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this component when low phase jitter (<1ps) is critical for signal integrity. Verify that the required output frequencies fall within the 30.625MHz to 640MHz range. Check if the input source matches one of the four supported mux options. Ensure the target logic levels are compatible with LVPECL outputs.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This part belongs to the HiPerClockS family from Integrated Circuit Systems, Inc., now part of Renesas Electronics Corporation. It is designed for high-performance clock generation and distribution in telecommunications and data communication infrastructure.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

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