SI53102-A1-GMR

Overview

The Si53102-A1-GMR is a high-performance 1:2 PCIe fan-out clock buffer compliant with PCIe Gen 1, Gen 2, Gen 3, and Gen 4 specifications. Designed for low-additive-jitter applications, it operates on a single 2.5 V or 3.3 V supply with a maximum operating current of 15 mA. The device accepts a differential input frequency up to 175 MHz and provides two differential outputs. It features spread spectrum tolerance and requires no termination resistors for differential clocks. The component is housed in an ultra-small 8-pin TDFN package measuring 1.4 x 1.6 mm.

Feature Summary

• Compliant with PCIe Gen 1, Gen 2, Gen 3, and Gen 4 common clock specifications
• Supports Serial-ATA (SATA) at 100 MHz
• Operates on 2.5 V or 3.3 V power supplies with 15 mA max supply current
• Spread spectrum tolerant with extended temperature range (-40 to 85 °C)

Applications

• Network Attached Storage
• Multi-function Printer
• Wireless Access Point
• Server/Storage

Procurement Notes

Verify the specific ordering suffix 'GMR' indicates tape and reel packaging when sourcing this component. Confirm that the A1 designation matches the required PCIe Gen 1 specification level, as the family includes variants for higher generation compliance. Ensure the supplier provides documentation confirming RoHS compliance and lead-free status.

Selection Notes

Select the Si53102-A1-GMR specifically for PCIe Gen 1 designs; use the A2 or A3 variants for Gen 2 or Gen 3/4 requirements respectively. The device supports both 2.5 V and 3.3 V logic levels, allowing flexibility in system power architecture. Consider the small 8-pin TDFN footprint for space-constrained embedded and consumer applications.

Part Context

This part belongs to the Si53102-A1/A2/A3 family of low-power PCIe clock buffers manufactured by Skyworks Solutions. The A1 variant is optimized for PCIe Gen 1, while the A2 and A3 variants support subsequent generations. All family members share the same physical package and pinout but differ in electrical performance characteristics related to jitter and speed.

Replacement Considerations

Direct functional replacements within the same family include the Si53102-A2-GMR and Si53102-A3-GMR, which offer backward compatibility for lower-generation designs. Designers must verify that the replacement variant meets the specific jitter and frequency requirements of the target PCIe generation.