SI53156-A01AGM

Overview

The SI53156-A01AGM is a PCIe Gen 1/2/3/4 compliant fanout buffer manufactured by Skyworks Solutions. It provides six differential clock outputs from a single differential input, supporting frequencies from 100 MHz to 210 MHz. The device operates on a 3.3 V supply (3.135 V to 3.465 V) and features internal termination for maximum integration. Key electrical specifications include an additive peak jitter of 10 ps and a clock skew of 50 ps. It is housed in a 32-pin QFN package and supports extended industrial operating temperatures from -40°C to +85°C.

Feature Summary

• PCIe Gen 1, 2, 3, and 4 common clock compliance with spread spectrum tolerance
• Six differential outputs with dedicated hardware OE pins and I2C control capabilities
• I2C programmability for dynamic adjustment of output skew, edge rate, and amplitude
• Low power consumption with 45 mA typical dynamic supply current at 100 MHz

Applications

• Network attached storage systems
• Multi-function printers
• Wireless access points
• Routers

Procurement Notes

Verify the ordering suffix 'GM' corresponds to the standard tube packaging configuration as specified in the Skyworks Ordering Guide. Confirm that the required temperature range matches the Extended specification (-40°C to +85°C). Ensure design compatibility with the 32-pin QFN land pattern dimensions provided in the datasheet.

Selection Notes

Select this component when a 1:6 fanout ratio is required for high-speed serial interfaces like PCIe or SATA. The SI53156-A01AGMR variant offers tape and reel packaging for automated assembly, whereas the A01AGM uses tube packaging. Both variants share identical electrical characteristics and pinouts.

Part Context

The SI53156 belongs to the Skyworks Si5315x family of PCIe clock buffers. It serves as a distribution solution for generating multiple synchronized clock signals from a single source. The device integrates control logic to manage output enable states and signal integrity parameters via an SMBus-compatible interface.

Replacement Considerations

The SI53156-A01AGMR is a direct functional replacement offering tape and reel packaging instead of tubes. Other members of the Si5315x family may provide different output counts but require verification of pin compatibility and electrical specifications.