ICS9FG104DGILFT

Overview

The ICS9FG104DGILFT is a frequency timing generator manufactured by Renesas Electronics Corporation, housed in a 28-TSSOP package. It synthesizes output frequencies from 14.318 MHz or 25 MHz crystal inputs, supporting up to 400 MHz maximum frequency. The device provides four differential HCSL output pairs compliant with Intel CK410 specifications for CPU, QPI, FBD, PCIe Gen 2, and SATA applications. Key electrical parameters include an operating temperature range of -40°C to +85°C, a supply voltage of 3.135V to 3.465V, cycle-to-cycle jitter under 50 ps, and output-to-output skew under 35 ps.

Feature Summary

• Four differential 0.7V current-mode output pairs compliant with Intel CK410 specification
• Supports spread spectrum modes: 0 to -0.5% downspread and +/-0.25% centerspread
• Frequency selection via strap pins or SMBus control
• Cycle-to-cycle jitter less than 50 ps and output-to-output skew less than 35 ps

Applications

• Intel CPU Server clock generation
• PCI Express (PCIe) Gen 2 reference clocks
• SATA interface timing at 100 MHz
• QPI and FBD memory system clocks

Procurement Notes

Verify the component status as this part number may be discontinued or subject to change. Confirm the specific suffix 'DGILFT' corresponds to the industrial temperature grade (-40°C to +85°C) and tape-and-reel packaging. Cross-reference with official Renesas documentation to ensure availability and compliance with current RoHS standards before procurement.

Selection Notes

Select this component when designing systems requiring low-jitter differential clocks for Intel architecture CPUs, PCIe Gen 2, or SATA interfaces. Ensure the design supports either 14.318 MHz or 25 MHz input crystals. Verify that the 28-TSSOP package fits the board layout constraints and that the 3.3V supply voltage aligns with the system power rails.

Part Context

This component belongs to the IDT/Renesas family of frequency generators designed for high-performance computing platforms. It replaces earlier versions like the ICS9FG104D series, maintaining compatibility with Intel's clocking specifications while offering flexible configuration options through hardware straps or SMBus programming for diverse system requirements.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.