ICS9LPR502SGLF

Overview

The ICS9LPR502SGLF is a clock synthesizer and jitter cleaner designed for Intel CK505 and PCI Express (PCIe) applications. It features a single circuit with a 1:19 input-to-output ratio, supporting maximum frequencies of 400MHz. The device accepts crystal inputs and provides differential clock outputs without differential input support. Operating on a supply voltage of 3.135V to 3.465V, it functions within a temperature range of 0°C to 70°C. Packaged in a 56-TFSOP case, this component integrates PLL technology for precise timing control.

Feature Summary

• Compliant with Intel CK505 specifications for desktop chipset timing
• Supports PCIe Gen1/Gen2 standards with low jitter performance
• Integrates an internal regulator for simplified power design
• Provides multiple differential LVPECL/LVDS output pairs

Applications

• Intel desktop chipset clock generation
• PCI Express (PCIe) bus timing
• System timing control hubs
• Motherboard reference clock distribution

Procurement Notes

Verify the exact ordering suffix against current Renesas documentation, as suffixes determine package type and tape/reel configuration. Confirm availability status, as many variants in this series have reached end-of-life or limited supply stages. Ensure RoHS compliance matches project requirements by checking the specific suffix designation.

Selection Notes

Select this component when designing for Intel CK505-based architectures requiring compliant PCIe clocking. Ensure the system utilizes a crystal input rather than a clock input. Verify that the 56-TFSOP package fits the PCB footprint constraints. Check if the integrated regulator meets the power budget compared to external solutions.

Part Context

This part belongs to the 9LPRS family of clock synthesizers from Renesas, formerly Integrated Circuit Systems (ICS). These devices are specialized for PC main clocks and chipset timing. The ICS9LPR502 variant specifically targets the CK505 platform, offering a consolidated solution for CPU, SRC, and peripheral clocks in a single chip.

Replacement Considerations

Direct replacements may be limited due to the age of the CK505 platform. Consider the 9EPRS525 series for similar functionality if pin-compatible. Verify electrical parameters such as jitter specs and output drive strength before substituting.