CY25404ZXI007

Clock Generators, PLLs, Frequency Synthesizers Overview

The CY25404ZXI007 is a quad PLL programmable clock generator with spread spectrum capability, housed in a 20-pin TSSOP package. It supports input frequencies of 8 to 48 MHz via crystal or 8 to 166 MHz via external clock. The device generates up to nine independent output clocks ranging from 3 to 166 MHz (or 3 to 50 MHz at 1.8 V). It features four configurable PLLs, selectable VDD supply voltages of 2.5 V, 3.0 V, and 3.3 V, and independent output bank voltages of 1.8 V, 2.5 V, 3.0 V, and 3.3 V. Operating temperature ranges are commercial (0 °C to +70 °C) and industrial (-40 °C to +85 °C).

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Four fully integrated phase-locked loops enable the synthesis of multiple unrelated frequencies from a single reference.
• Programmable spread spectrum modulation reduces electromagnetic interference using center or down spread profiles.
• Glitch-free frequency switching allows uninterrupted system operation during clock frequency transitions.
• One-time programmability provides nonvolatile storage for customizing frequencies, drive strength, and EMI characteristics.

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 against official Infineon or Cypress documentation to confirm factory-programmed configurations. Confirm that the requested part number matches the required temperature grade and packaging format before procurement.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this component when multiple independent clock frequencies are required from a single source. Ensure the output voltage requirements align with the available bank supply options. Verify that the application benefits from glitch-free switching and spread spectrum EMI reduction capabilities.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This device belongs to the VersaClock family of programmable clock generators. It replaces multiple discrete oscillators and crystals, reducing board space and design complexity while providing precise timing solutions for complex digital systems.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Check for updated versions within the CY25404 series. Verify pin compatibility and electrical specifications if considering alternative clock generators from other manufacturers.

Clock Generators, PLLs, Frequency Synthesizers FAQ

Can the CY25404 generate different frequencies simultaneously?

Yes, the four independent PLLs allow the generation of up to four distinct frequencies across the nine clock outputs.

What is the maximum load capacitance supported by the outputs?

The maximum load capacitance supported by the outputs is 15 pF.

How is the spread spectrum feature controlled?

The spread spectrum feature can be enabled or disabled using the multifunction CLK7/SSON control pin.