CY2545QC010

Clock Generators, PLLs, Frequency Synthesizers Overview

The CY2545QC010 is a quad-PLL programmable spread spectrum clock generator featuring a serial I2C interface. It supports input frequencies from 8 MHz to 166 MHz and generates output clocks ranging from 3 MHz to 166 MHz. The device operates with a core supply voltage of 2.5 V, 3.0 V, or 3.3 V, while output banks support selectable voltages of 1.8 V, 2.5 V, 3.0 V, or 3.3 V. It includes four PLLs, eight clock outputs in three banks, and glitch-free frequency switching capabilities within a 24-pin QFN package.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Four fully integrated phase-locked loops enable synthesis of unrelated frequencies from a single reference.
• Serial I2C programming allows configuration of PLL frequencies, spread spectrum characteristics, drive strength, and crystal load capacitance.
• Programmable spread spectrum with center and down spread options supports Lexmark and Linear modulation profiles for EMI reduction.
• Glitch-free frequency switching ensures uninterrupted system operation during clock frequency changes.

Clock Generators, PLLs, Frequency Synthesizers Applications

• PC motherboard clock generation
• Consumer electronics timing
• Portable device synchronization
• Networking equipment clock distribution

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the specific ordering suffix QC010 against official Infineon documentation to confirm exact factory-programmed frequencies and configuration settings. Ensure compatibility with the required I2C bus speed and voltage levels for the target application design.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this component when multiple independent clock frequencies are required from a single source. Consider the CY2547 variant if a 1.8 V core supply is mandatory. Verify that the output bank voltage requirements align with the connected loads and that the I2C interface is available for configuration.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This part belongs to the CY2545/CY2547 family of quad-PLL programmable spread spectrum clock generators. It shares functional similarities with other members like CY2545QC009T but differs in specific factory-programmed parameters and ordering suffixes defined by the manufacturer.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Direct substitutes include other CY2545 series parts such as CY2545QC009T or CY2545QC022T. Verify that the replacement part matches the required output frequencies, voltage levels, and package type before integration.

Clock Generators, PLLs, Frequency Synthesizers FAQ

Can the CY2545QC010 generate nonstandard frequencies?

Yes, the device has Fractional-N capability allowing it to synthesize nonstandard frequencies with zero PPM frequency synthesis error.

What is the maximum operating frequency for the input reference clock?

The external reference clock input range is 8 MHz to 166 MHz.

How many independent clock outputs can be generated simultaneously?

The device provides up to eight clock outputs, which can be sourced from any of the four PLLs via a crossbar switch.