CY25404ZXI011T

Clock Generators, PLLs, Frequency Synthesizers Overview

The CY25404ZXI011T is a Quad PLL Programmable Clock Generator with Spread Spectrum, manufactured by Infineon Technologies. It features four fully-integrated phase-locked loops capable of synthesizing frequencies from 3 to 166 MHz. The device supports input frequencies ranging from 8 to 48 MHz for external crystals and 8 to 166 MHz for external reference clocks. It provides up to nine clock outputs grouped into three independent banks, each supporting selectable supply voltages of 1.8 V, 2.5 V, 3.0 V, or 3.3 V. The component operates within an industrial temperature range of -40 °C to +85 °C and utilizes a 20-pin TSSOP package.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Four programmable PLLs enable the synthesis of multiple independent output frequencies from a single reference source.
• Spread spectrum capability integrated into two PLLs allows for configurable EMI reduction using center or down spread modulation profiles.
• Nine clock outputs are organized into three independently powered driver banks, allowing flexible voltage level selection per bank.
• Glitch-free frequency switching is supported via multifunction pins, ensuring uninterrupted system operation during transitions.

Clock Generators, PLLs, Frequency Synthesizers Applications

• PC, consumer, portable, and networking applications requiring precise clock generation
• System frequency margin tests utilizing programmable PLL configurations
• Application-specific electromagnetic interference (EMI) reduction in standard and low-power systems

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the specific factory-programmed configuration associated with the suffix '011' against official documentation, as this identifier denotes a custom frequency set rather than a generic parameter. Confirm current availability status through authorized distributors, as lead times may vary due to limited stock conditions. Ensure that the ordering suffix does not imply functional changes unless explicitly stated in the manufacturer's ordering code definitions.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this component when designs require up to four independent clock frequencies derived from a single crystal or external clock source. Consider the CY25404ZXI011T for applications needing glitch-free frequency switching and programmable drive strength to optimize signal integrity. Verify that the required output voltage levels align with the available bank supply options and that the operating temperature range meets the environmental specifications of the target application.

Clock Generators, PLLs, Frequency Synthesizers Part Context

The CY25404 belongs to the Cypress/Infineon family of programmable clock generators designed for complex system timing requirements. This series integrates nonvolatile programming capabilities, allowing customization of PLL frequencies, spread spectrum characteristics, and output drive strengths. The device replaces discrete clock solutions by consolidating multiple PLL functions into a single 20-pin package, reducing board space and design complexity.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Direct replacements must match the Quad PLL architecture and 20-pin TSSOP footprint. Verify compatibility regarding input frequency ranges and output bank voltage configurations. Cross-reference specific part numbers within the CY25404 series for identical factory-programmed frequency sets if exact electrical matching is required.