SI52112-B5-GT

Overview

The SI52112-B5-GT is a dual-output PCIe clock generator manufactured by Skyworks Solutions, Inc. It sources two HCSL differential clocks from a 25 MHz crystal or clock input, supporting PCIe Gen 1, Gen 2, and Gen 3 common clock specifications. The device operates on a 3.3 V supply with a maximum current of 17 mA and features an output frequency of 100 MHz. It utilizes an 8-pin TSSOP package and supports an operating temperature range of –40 to 85 °C.

Feature Summary

• PCIe Gen 1, Gen 2, and Gen 3 common clock compliant
• Low power HCSL differential output buffers
• Supports Serial-ATA (SATA) at 100 MHz
• No termination resistors required

Applications

• Network attached storage
• Multi-function printer
• PCIe Add-on Cards
• Network Interface Cards
• Docking Stations

Procurement Notes

Verify the specific ordering suffix 'GT' corresponds to the 8-pin TSSOP package configuration in the manufacturer's official ordering guide. Confirm that the non-spread spectrum variant meets the design requirements, as the B6 series offers spread spectrum options. Ensure component authenticity through authorized distribution channels.

Selection Notes

Select this model for designs requiring a compact 8-pin TSSOP footprint instead of the available TDFN packages. Note that the B5 variant does not support spread spectrum outputs; use the B6 series if EMI reduction via triangular spread spectrum is necessary. Verify compatibility with the 25 MHz crystal input or external clock source.

Part Context

This component belongs to the Si52112-B5/B6 family of high-performance PCIe clock generators. The B5 designation specifically indicates a non-spread spectrum output profile, distinguishing it from the B6 variant which supports 0.5% down spread. The GT suffix identifies the specific 8-pin TSSOP surface-mount package type within this product line.

Replacement Considerations

The SI52112-B5-GM3 serves as a direct functional alternative utilizing an 8-pin TDFN package. For designs requiring spread spectrum capabilities, the SI52112-B6-GT provides identical pinout and functionality with added EMI reduction features.