PI6C20800SVE

Overview

The PI6C20800SVE is a PCI Express differential clock buffer manufactured by Diodes Incorporated, designed to distribute the SRC clock from the PI6C410BS generator. It provides eight pairs of differential HCSL outputs with a maximum frequency of 400 MHz in bypass mode and 105 MHz in PLL mode. The device operates on a 3.135V to 3.465V supply within a 48-pin SSOP package. Key features include low skew (<50ps), cycle-to-cycle jitter (<70ps), and SMBus control for output enablement and power management.

Feature Summary

• Eight pairs of differential HCSL clock outputs
• Low skew <50ps and cycle-to-cycle jitter <70ps
• Programmable PLL bandwidth and fanout/PLL operation
• SMBus interface for indexed block read/write control

Applications

• PCI Express clock distribution for Intel server chipsets
• High-speed differential clock buffering
• Phase jitter filtering applications

Procurement Notes

Verify the specific ordering suffix 'VE' corresponds to the 48-pin SSOP package as defined in the datasheet. Confirm RoHS compliance status through official manufacturer documentation or distributor specifications before procurement.

Selection Notes

Select this component for PCIe 1:8 clock distribution requiring low skew and jitter performance. Ensure the design supports the required 3.3V supply voltage and utilizes an external resistor at IREF to set the differential output current accurately.

Part Context

This part belongs to the Pericom PI6C20800 series of high-speed, low-noise differential clock buffers. It serves as a companion to the PI6C410BS clock synthesizer, specifically optimized for distributing reference clocks in server chipset architectures.

Replacement Considerations

The industrial temperature variant PI6C20800SIVE offers identical electrical characteristics but operates across a wider temperature range (-40°C to 85°C). Verify thermal requirements when considering substitution.