CY27410FLTXI

Clock Generators, PLLs, Frequency Synthesizers Overview

The CY27410 is a four-PLL spread-spectrum clock generator in a 48-pin QFN package. It supports crystal inputs from 8 MHz to 48 MHz and reference clocks up to 700 MHz differentially. Outputs reach 700 MHz in LVDS, LVPECL, HCSL, or CML formats, with LVCMOS options up to 250 MHz. The device features 1-ps max RMS phase jitter (12-kHz to 20-MHz offset) and complies with PCIe 1.0/2.0/3.0, SATA 2.0, USB 2.0/3.0, and 1/10-GbE standards. Supply voltages are 1.8 V, 2.5 V, and 3.3 V. It includes VCXO functionality with ±120 ppm tuning and onboard I2C programming.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Four independent fractional-N PLLs with zero-ppm synthesis error and spread-spectrum modulation capabilities.
• Configurable output banks supporting up to eight differential pairs or twelve single-ended LVCMOS outputs.
• VCXO functionality for audio-visual synchronization via voltage-controlled frequency shift.
• Onboard nonvolatile memory allowing dynamic configuration updates through the I2C interface.

Clock Generators, PLLs, Frequency Synthesizers Applications

• PCIe 1.0/2.0/3.0 compliant system clock generation
• SATA 2.0 and USB 2.0/3.0 interface timing
• 1/10-GbE network infrastructure clocking
• Audio-visual synchronization requiring VCXO input

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the specific ordering suffix against the official Infineon datasheet to confirm package type and temperature range. Ensure the I2C address matches your system design, as the default is 69 hex. Confirm that the selected supply voltage aligns with the required VDD and VDDIO ranges for your application environment.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this component when low jitter and EMI reduction are critical for high-speed serial interfaces. Consider the VCXO feature if audio/video synchronization is required. Evaluate the number of differential versus single-ended outputs needed to determine if the two-bank architecture fits the board layout constraints.

Clock Generators, PLLs, Frequency Synthesizers Part Context

Originally developed by Cypress Semiconductor, the CY27410 is now part of the Infineon Technologies portfolio. It belongs to the family of programmable clock generators designed for consumer, industrial, and networking applications. The device maintains continuity with previous documentation while offering integrated spread-spectrum and VCXO features.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Consult the official Infineon selection guide for direct replacements within the CY274xx series. Verify pin compatibility and electrical specifications before substituting with other clock generators from the same manufacturer.

Clock Generators, PLLs, Frequency Synthesizers FAQ

Can the CY27410 operate as a Zero-Delay Buffer?

Yes, the device supports Zero-Delay Buffer (ZDB) functionality by feeding an output back to the PLL feedback input, provided the PLL is in integer N mode.

What is the maximum spread-spectrum deviation?

The device supports spread-spectrum modulation ranging from 0.1% to 5% in 0.1% steps, with configurable center or down spread profiles.

How is the VCXO function implemented?

The VCXO function uses the VIN pin to modulate the FracN counter of PLL 1, allowing frequency variation up to ±120 ppm without pulling the crystal.