CY27410LTXI-026

Clock Generators, PLLs, Frequency Synthesizers Overview

The CY27410LTXI-026 is a 4-PLL spread-spectrum clock generator manufactured by Infineon. It supports crystal inputs from 8 MHz to 48 MHz and reference clocks up to 700 MHz differentially. Outputs range from 3 MHz to 700 MHz, supporting LVDS, LVPECL, HCSL, CML, and LVCMOS logic levels. The device features four fractional N-type PLLs with VCXO capability (±120 ppm) and spread-spectrum modulation (0.1% to 5%). It provides up to 12 outputs split into two banks, achieving 1-ps max RMS phase jitter at 12-kHz to 20-MHz offset. Supply voltages include 1.8 V, 2.5 V, and 3.3 V. It is housed in a 48-pin QFN package.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Four independent fractional N-phase-locked loops enable precise frequency synthesis with zero-ppm error and integrated spread-spectrum modulation for EMI reduction.
• Dual-bank output architecture supports up to eight differential pairs or twelve single-ended LVCMOS outputs with configurable logic levels including LVDS, LVPECL, HCSL, and CML.
• Onboard I2C programmability allows dynamic configuration of frequency, spread spectrum, and power states without external programming hardware.

Clock Generators, PLLs, Frequency Synthesizers Applications

• PCIe 1.0/2.0/3.0 compliant clock generation
• SATA 2.0 and USB 2.0/3.0 interface timing
• 1/10-GbE network synchronization

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the specific ordering suffix against the official Infineon datasheet to confirm voltage ranges, temperature grades, and packaging details. Ensure the component matches the required industrial-grade specifications and RoHS compliance status before integration into production designs.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this component when designing systems requiring multiple synchronized clock domains with low jitter and spread-spectrum capabilities. Evaluate the input frequency requirements against the supported crystal and reference clock ranges. Confirm that the available output drivers meet the load requirements of the target logic families.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This part belongs to the CY27410 family of 4-PLL spread-spectrum clock generators originally developed by Cypress Semiconductor and now maintained by Infineon Technologies. The series is designed for consumer, industrial, and networking applications requiring high-performance clock distribution.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Consult the official Infineon product selection guide for direct replacements within the CY27410 family. Verify pin compatibility and electrical specifications before substituting with other clock generator models.

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, allowing for glitch-free clock transition features.

What is the maximum spread-spectrum deviation supported?

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

How is the VCXO functionality implemented?

VCXO functionality is achieved via the VIN input, which modulates the FracN divider of PLL 1 to provide voltage-controlled frequency shift with ±120 ppm granularity.