PI6C20800SAE

Overview

The PI6C20800SAE is a PCI Express differential clock buffer manufactured by Diodes Incorporated. It provides one-to-eight fanout with eight pairs of differential HCSL outputs. The device supports both PLL and fanout modes, featuring a programmable PLL bandwidth and low skew characteristics. It operates on a single 3.3V supply (3.135V to 3.465V) within a commercial temperature range of 0°C to 70°C. The input frequency reaches up to 400 MHz in bypass mode. Packaged in a 48-TSSOP case, it includes SMBus control for output enablement and power management.

Feature Summary

• PCI Express phase jitter filter with <50ps output-to-output skew
• Eight pairs of differential HCSL clock outputs
• Programmable PLL bandwidth and selectable PLL or fanout operation
• SMBus interface for output tristate control and power management

Applications

• PCI Express clock distribution for Intel server chipsets
• High-speed data acquisition systems requiring low noise clocking
• Server motherboard clock buffering

Procurement Notes

Verify the package code AE corresponds to the 48-pin TSSOP form factor. Confirm the suffix E indicates Pb-Free and Green compliance. Check that the specific revision matches the required operating temperature range of 0°C to 70°C for commercial applications.

Selection Notes

Select this component when an 8-channel differential HCSL buffer is needed for PCIe architectures. Ensure the design accommodates the 3.3V supply voltage and utilizes the SMBus interface for dynamic output control. Consider the PI6C20800SI variant if industrial temperature ratings (-40°C to 85°C) are required.

Part Context

This part belongs to the PI6C20800 series of high-speed, low-noise differential clock buffers. It is designed as a companion to the PI6C410BS clock generator. The 'AE' suffix denotes the 48-pin TSSOP package, while 'E' signifies environmental compliance.

Replacement Considerations

The PI6C20800VE serves as a pin-compatible alternative using a 48-pin SSOP package. For industrial temperature requirements, the PI6C20800SI or PI6C20800SIAE variants are available.