9EPRS525AGILF

Overview

The 9EPRS525AGILF is a clock synthesizer compliant with the Intel CK505 Yellow Cover specification, designed as a single-chip solution for Intel desktop chipsets. It operates from an external 14.318MHz crystal and provides multiple differential low-power push-pull outputs. Key electrical parameters include CPU outputs supporting frequencies up to 400MHz with cycle-cycle jitter under 85ps, SRC outputs with jitter under 125ps, and PCI outputs at 33MHz with jitter under 250ps. The device offers +/- 100ppm frequency accuracy across all outputs and supports spread spectrum modulation ranging from 0 to -0.5% down spread.

Feature Summary

• Compliant with Intel CK505 Yellow Cover specification for desktop chipset integration
• Provides CPU, SRC, PCI, USB, and REF clock outputs with tight jitter specifications
• Supports spread spectrum modulation (0 to -0.5% down spread) for EMI reduction
• SRC outputs meet PCIe Gen2 requirements when sourced from PLL3

Applications

• Intel desktop chipset clock generation
• PCI Express Gen2 interface timing
• USB 48MHz clock distribution
• Serial ATA timing support

Procurement Notes

The 9EPRS525AGILF is listed as obsolete. Verification of availability should focus on surplus or secondary market sources rather than direct manufacturer distribution. Confirm package type is TSSOP-56 and temperature grade is Industrial (I). Ensure lead-free status matches RoHS requirements if applicable to the specific revision.

Selection Notes

Select this component only for designs requiring strict compliance with the legacy Intel CK505 Yellow Cover specification. Verify that the system can accommodate the required external 14.318MHz crystal and load capacitors for frequency tuning. Consider that the part is obsolete; evaluate replacement options if new production volume is anticipated.

Part Context

This part is a derivative of the CK505 family, specifically tailored for embedded systems and desktop applications. It integrates multiple clock generators into one package to reduce board space. The AGILF suffix indicates a lead-free TSSOP-56 package in a tube carrier.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Due to the obsolete status, alternative solutions may require redesigning the clock tree or sourcing compatible CK505 derivatives with updated packaging.