ICS571M

Clock Generators, PLLs, Frequency Synthesizers Overview

The ICS571M is a high-speed, low phase noise Zero Delay Buffer (ZDB) from the ClockBlocks family. It integrates proprietary analog/digital PLL techniques to align input clock rising edges with output rising edges, eliminating apparent delay. The device features two CMOS outputs: one standard and one low-skew divide-by-two version. It supports input frequencies up to 160 MHz at 3.3 V and operates on supply voltages between 3.0 V and 5.5 V. Packaged in an 8-pin SOIC, it provides high drive strength for outputs exceeding 100 MHz.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Zero Delay Buffer functionality aligns input and output clock edges
• Integrated Phase Locked Loop (PLL) for low phase noise performance
• Two CMOS outputs with one being a low-skew divide-by-two of the other
• Operates at input frequencies up to 160 MHz at 3.3 V

Clock Generators, PLLs, Frequency Synthesizers Applications

• Synchronizing outputs in personal computer systems
• Data communications equipment timing
• Video system synchronization

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify component status as non-green parts reached End-of-Life on May 13, 2010. Confirm RoHS compliance by checking for the 'LF' suffix in the part number, as lead-free versions are available. Ensure ordering specifications match the required packaging format, such as tubes or tape and reel options.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select the ICS571M when zero-delay synchronization is required for CMOS clocks up to 160 MHz. The device requires external decoupling capacitors (0.01µF) near power pins. Consider using 33Ω terminating resistors near output pins for optimal signal integrity. Verify that the application voltage falls within the 3.0 V to 5.5 V operating range.

Clock Generators, PLLs, Frequency Synthesizers Part Context

The ICS571 belongs to IDT’s ClockBlocks family, updating previous standards like the AV9170 and ICS570. It was designed for higher frequencies and faster rise/fall times compared to its predecessors. The manufacturer is Integrated Device Technology (IDT), which was later acquired by Renesas Electronics Corporation.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Publicly confirmed substitute part numbers are not provided in the source material.