PI6C20800SIVEX

Overview

The PI6C20800SIVEX is a PCI Express high-speed, low-noise differential clock buffer manufactured by Diodes Incorporated. It provides an 1:8 distribution ratio for differential HCSL clocks, supporting input frequencies up to 400 MHz and output frequencies up to 100 MHz. The device operates on a single 3.3V supply (3.135V to 3.465V) within an industrial temperature range of -40°C to +85°C. Key electrical parameters include a maximum propagation delay of 8 ns in bypass mode and less than 50 ps of output-to-output skew. It is housed in a 48-pin SSOP package.

Feature Summary

• PCIe Phase Jitter Filter: Designed as a companion to the PI6C410BS generator for Intel server chipsets, featuring programmable PLL bandwidth.
• Differential Output Configuration: Distributes one differential SRC input to eight pairs of differential HCSL outputs with low skew (<50ps).
• Flexible Control Interface: Supports SMBus control for output enable/tristate, power management, and configuration via dedicated pins like PWRDWN# and SRC_STOP#.
• Dual Operation Modes: Capable of functioning as either a PLL-based jitter filter or a direct fanout buffer depending on the PLL/BYPASS# pin state.

Applications

• PCI Express clock distribution for Intel server chipsets.
• High-speed data communication systems requiring low-noise differential clocking.
• Industrial temperature environments (-40°C to +85°C).

Procurement Notes

Verify component authenticity through authorized Diodes Incorporated channels. Confirm the 'I' suffix indicates the industrial temperature grade (-40°C to +85°C) and the 'V' suffix denotes the 48-pin SSOP package. Ensure compatibility with existing PCB footprints for the 48-SSOP form factor before procurement.

Selection Notes

Select this model when an industrial temperature rating is required for PCIe clock buffering. Compare against the PI6C20800BIAEX if a TSSOP-Wide-48 package is preferred over the SSOP-48 variant. Verify that the 400 MHz maximum input frequency meets system requirements, noting the 100 MHz maximum output frequency limit.

Part Context

This component belongs to the PI6C20800S series of PCI Express clock buffers. It is functionally related to the PI6C410BS clock generator. The 'I' suffix specifically identifies the industrial temperature version, distinct from the commercial grade PI6C20800S. The 'V' package code corresponds to the 48-pin SSOP housing.

Replacement Considerations

The PI6C20800BIAEX serves as a package alternative using a TSSOP-Wide-48 footprint instead of SSOP-48. Both share identical electrical specifications and functionality. No other direct substitutes are documented in the provided datasheet.