ICS557G-06T

Overview

The ICS557G-06T is a one-to-four differential to HCSL clock buffer designed for PCI-Express applications. It selects one of two differential input pairs and fans out to four pairs of differential outputs. The device operates at frequencies from 80 MHz to 200 MHz with a supply voltage of 3.135V to 3.465V. Key electrical parameters include a cycle-to-cycle jitter of 100 ps, an output skew of 50 ps, and an operating temperature range of 0°C to +70°C. It is housed in a 20-pin TSSOP package.

Feature Summary

• One-to-four fanout capability selecting between two differential input pairs
• Supports HCSL outputs (0.7 V current mode) and accepts LVDS or HCSL inputs
• Low power consumption with typical supply current of 55 mA
• Jitter performance of 100 ps peak-to-peak

Applications

• PCI-Express clock distribution
• High-speed digital systems requiring low jitter buffering

Procurement Notes

Verify the specific ordering suffix 'T' corresponds to Tape and Reel packaging as indicated in the datasheet ordering information. Confirm RoHS compliance status by checking for the 'LF' designation if lead-free material is required. Ensure the 20-TSSOP package dimensions match the PCB footprint design constraints.

Selection Notes

Select this component when a single differential clock source needs to drive four separate loads with minimal skew. Verify that the input signal levels are compatible with HCSL or LVDS standards. Ensure the system power supply can provide the required 3.3V nominal voltage within the specified tolerance range.

Part Context

This part belongs to the ICS557 series of clock buffers manufactured by Integrated Circuit Systems (ICS), now part of Renesas Electronics. The 'G' suffix typically denotes Pb-free packaging, while 'T' indicates tape and reel shipping. It serves as a buffer rather than a generator, relying on an external crystal or oscillator for the input clock signal.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.