841S102EGILF

Overview

The 841S102EGILF is a PLL-based clock synthesizer from the FemtoClock series, designed for PCI Express applications. It generates a 100 MHz differential HCSL output from a 25 MHz input reference. The device supports spread spectrum clocking via an I2C interface to reduce EMI. It operates on a 3.135 V to 3.465 V supply within a -40°C to +85°C temperature range and is housed in a 20-TSSOP package.

Feature Summary

• Generates 100 MHz differential HCSL clock from 25 MHz input
• Supports spread spectrum operation (-0.35% or -0.5%) via I2C
• Accepts external reference or internal crystal oscillator
• RoHS compliant lead-free package

Applications

• PCI Express clock generation
• System clock distribution
• EMI reduction in high-speed digital circuits

Procurement Notes

Verify the specific suffix 'EGILF' against the manufacturer's current datasheet to confirm pinout and electrical characteristics match the design requirements. Confirm availability status as supply constraints may affect order fulfillment timelines.

Selection Notes

Select this component when a fixed 1:4 multiplication ratio from 25 MHz to 100 MHz is required for PCIe interfaces. Ensure the system design accommodates the 20-TSSOP footprint and provides necessary I2C control lines for spread spectrum configuration.

Part Context

This part belongs to the Renesas 841S101I/841S102I FemtoClock family. The 841S102 variant specifically targets two-output differential applications, whereas the 841S101 offers a single output. Both share similar jitter performance and packaging options.

Replacement Considerations

The 841S101EGILF serves as a functional substitute if only one differential output is needed. Verify that the reduced output count does not impact the target board layout.