SI52112-B5-GM2

Overview

The SI52112-B5-GM2 is a dual-output PCIe clock generator from Skyworks Solutions, designed for PCI Express Gen 1, Gen 2, and Gen 3 common clock applications. It sources two HCSL differential clocks from a 25 MHz crystal or clock input. The device operates on a 3.3 V supply with a maximum current of 17 mA. Key electrical parameters include a maximum output frequency of 100 MHz, cycle-to-cycle jitter of 70 ps, and long-term accuracy of 250 ppm. It supports Serial-ATA at 100 MHz and does not feature spread spectrum modulation. The component is housed in a 10-pin TDFN package (3 x 3 mm) and functions within an ambient temperature range of -40 °C to +85 °C.

Feature Summary

• PCIe Gen 1, Gen 2, and Gen 3 common clock compliant
• Dual low-power HCSL differential outputs
• 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
• Wireless access point

Procurement Notes

Verify the specific ordering suffix 'GM2' corresponds to the 10-pin TDFN package configuration. Confirm that the non-spread spectrum variant meets system EMI requirements, as this model lacks the triangular spread spectrum profile found in the B6 series. Ensure design guidelines regarding power supply filtering are followed during procurement planning.

Selection Notes

Select the SI52112-B5-GM2 when a compact 10-pin footprint is preferred over the 8-pin alternative. This part is suitable for designs requiring strict compliance with PCIe Gen 3 SRNS specifications without spread spectrum capabilities. Verify that the 10-pin TDFN dimensions align with the target PCB layout constraints.

Part Context

This component belongs to the Si52112-B5/B6 family of high-performance PCIe clock generators. The B5 designation specifically indicates the absence of spread spectrum functionality, distinguishing it from the B6 variant which supports 0.5% down spread. Both variants share identical core electrical performance and package options.

Replacement Considerations

Public confirmed substitute: SI52112-B6-GM2.