CY25404ZXI-005T

Clock Generators, PLLs, Frequency Synthesizers Overview

The CY25404ZXI-005T is a programmable clock generator featuring four fully integrated phase-locked loops (PLLs) housed in a 20-pin TSSOP package. It supports input frequencies from 8 to 166 MHz via external crystal or reference clock, generating output clocks between 3 and 166 MHz. The device offers nine clock outputs across three independent voltage banks (1.8 V, 2.5 V, 3.0 V, or 3.3 V). Key specifications include a supply current of 22 mA, cycle-to-cycle jitter typically ranging from 67 ps to 138 ps depending on configuration, and a PLL lock time of 13 ms. It operates within the industrial temperature range of -40 °C to +85 °C.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Four independent PLLs enable synthesis of unrelated frequencies from a single input source.
• Programmable spread spectrum capability with center and down spread options for EMI reduction.
• Glitch-free frequency switching allows uninterrupted system operation during clock transitions.
• One-time programmability supports customization of frequencies, drive strength, and modulation profiles.

Clock Generators, PLLs, Frequency Synthesizers Applications

• Personal computer motherboard clock generation
• Consumer electronics timing synchronization
• Portable device power management systems
• Networking equipment signal distribution

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify component authenticity through authorized Infineon channels due to discontinued status. Confirm that the specific suffix matches required factory programming parameters. Request original datasheets and compliance certificates to ensure adherence to RoHS standards before finalizing acquisition.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this model when multiple independent clock frequencies are required from a single oscillator source. Ensure the application requires industrial temperature tolerance (-40 °C to +85 °C). Verify that the available output drive strengths and voltage levels align with downstream logic requirements without additional buffering.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This component belongs to the CY25404 family of quad PLL programmable clock generators. Originally developed by Cypress Semiconductor, the product line was integrated into Infineon Technologies' portfolio following corporate acquisitions. The ZXI suffix specifically denotes the industrial temperature grade variant packaged in tape and reel format.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Due to the discontinued status and specific factory programming, direct pin-compatible replacements require verification against updated Infineon portfolios or custom programming services.

Clock Generators, PLLs, Frequency Synthesizers FAQ

Can the CY25404 generate different frequencies simultaneously?

Yes, the device contains four independent PLLs, allowing it to synthesize up to four distinct output frequencies from a single input clock source.

What is the maximum load capacitance supported by the outputs?

The recommended operating conditions specify a maximum load capacitance of 15 pF for the clock outputs.

How is the spread spectrum feature controlled?

The spread spectrum function can be enabled or disabled using the multifunction CLK7/SSON pin, which acts as a control input for the modulation profile.