PI6C20800SIAE

Overview

The PI6C20800SIAE is a PCI Express differential clock buffer manufactured by Diodes Incorporated. It provides one-to-eight fanout of differential HCSL clocks with an integrated programmable PLL for jitter filtering. The device operates on a single 3.3V supply within the 3.135V to 3.465V range and supports frequencies up to 400MHz in bypass mode. Designed for industrial applications, it functions between -40°C and +85°C. The component utilizes a 48-pin TSSOP package (6.10mm width) and includes SMBus control for output enablement and power management.

Feature Summary

• PCIe Phase Jitter Filter: Integrated PLL filters input jitter for compliant PCIe clock distribution.
• Differential Output: Distributes one differential input to eight pairs of differential HCSL outputs.
• Low Skew Performance: Ensures output-to-output skew of less than 60ps for signal integrity.
• SMBus Control: Supports indexed block read/write protocols for dynamic configuration and monitoring.

Applications

• Intel server chipset clock distribution
• PCI Express system architecture timing
• High-speed digital interface synchronization

Procurement Notes

Verify the specific suffix 'AE' confirms the 48-pin TSSOP package and industrial temperature grade (-40°C to +85°C). Confirm RoHS compliance status via the manufacturer's documentation before integration. Check current availability as this component may be subject to end-of-life notifications or discontinuation.

Selection Notes

Select the PI6C20800SIAE when industrial temperature operation is required alongside low skew performance. Ensure the design accommodates the 48-TSSOP footprint. Verify that the host system requires SMBus-based output control and that the 3.3V logic levels are compatible with the driving circuitry.

Part Context

This part belongs to the PI6C20800S family of high-speed, low-noise differential clock buffers. The 'I' suffix denotes the industrial temperature variant, while 'A' specifies the TSSOP package. It serves as a companion to the PI6C410BS clock generator for Intel server chipsets.

Replacement Considerations

The PI6C20800SVE is the commercial temperature equivalent in the same package. For tape and reel packaging, consider the PI6C20800SIAEX variant. No direct cross-manufacturer substitutes are verified in the provided data.

FAQ

How does the device handle power down?

Asserting the PWRDWN# pin forces all outputs into a tristate condition and reduces power consumption. During this state, SDA and SCLK inputs must also be tristated.

What is the maximum input frequency supported?

The device supports a maximum SRC/SRC# input frequency of 400 MHz when operating in bypass mode.

Can the input frequency be divided?

Yes, the input frequency can be divided by two by pulling the SRC_DIV# pin LOW.