9FGV1008B099LTGI

Overview

The 9FGV1008B099LTGI is a programmable PhiClock generator manufactured by Renesas Electronics Corporation. It operates within an industrial temperature range of -40°C to 85°C and utilizes a 24-lead LTG package with dimensions of 4.0 x 4.0 mm. The device supports core voltages of 1.8V and 3.3V, accepting crystal or LVCMOS inputs. It generates LP-HCSL and LVDS outputs compliant with PCIe Gen1 through Gen4 jitter specifications. Key electrical parameters include a maximum frequency of 156.25 MHz, a peak-to-peak common-clock jitter of 50 ps, and an output impedance of 100 ohms.

Feature Summary

• Programmable architecture supporting hardware selection via select pins or software configuration via I²C
• Generates four spread-spectrum copies of a single output frequency alongside two crystal reference copies
• Outputs available in LP-HCSL and LVDS signaling formats for flexible system integration
• Compliant with jitter requirements for PCIe Gen1, Gen2, Gen3, and Gen4 standards

Applications

• PCI Express (PCIe) timing solutions
• Intel CPU server platforms
• SATA clock generation

Procurement Notes

Verify the specific suffix 'B099' against official Renesas documentation to confirm factory-configured output frequencies and divider ratios. Ensure the LTG package type matches the target PCB footprint. Confirm RoHS compliance status and check for any recent Product Change Notices regarding assembly sites or material updates before finalizing procurement.

Selection Notes

Select this component when designing systems requiring precise clock distribution for PCIe interfaces. Verify that the required output frequencies fall within the supported ranges of 50 MHz, 100 MHz, 125 MHz, and 156.25 MHz. Ensure the design accommodates both LP-HCSL and LVDS output requirements if differential signaling is necessary for signal integrity over long traces.

Part Context

This part belongs to the Renesas PhiClock family of programmable clock generators. These devices are designed to replace multiple fixed-frequency oscillators and buffers, reducing bill-of-materials complexity. The 9FGV1008 variant specifically provides multiple output channels with spread-spectrum capabilities to minimize electromagnetic interference (EMI) in high-speed digital systems.

Replacement Considerations

Direct replacements within the same family include the 9FGV1002, 9FGV1004, and 9FGV1006 series. When substituting, verify pin compatibility and ensure the alternative model supports the required number of outputs and specific frequency configurations. Check datasheets for differences in jitter performance and power consumption.