SI53102-A2-GMR

Overview

The Si53102-A2-GMR is a high-performance 1:2 fan-out clock buffer compliant with PCI-Express Gen 2 specifications. It operates on a single 2.5 V or 3.3 V supply, drawing a maximum of 15 mA. The device accepts a differential input frequency up to 175 MHz and provides two low-power PCIe clock outputs. Key electrical parameters include an additive phase jitter of 0.50 ps RMS for both the 10 kHz to 1.5 MHz and 1.5 MHz to Nyquist bandwidths. It features a small 8-pin TDFN package (1.4 x 1.6 mm) and supports an extended operating temperature range from -40 °C to +85 °C.

Feature Summary

• PCIe Gen 2 common clock compliant
• Low additive phase jitter (0.50 ps RMS)
• Supports 2.5 V or 3.3 V power supplies
• Spread spectrum tolerant

Applications

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

Procurement Notes

Verify the specific ordering suffix 'GMR' corresponds to the tape and reel packaging format as defined in the manufacturer's ordering guide. Confirm that the component meets RoHS requirements and check for any moisture sensitivity labeling prior to surface mount assembly.

Selection Notes

Select the Si53102-A2 variant specifically for PCI-Express Gen 2 applications. For Gen 1 designs, use the A1 version; for Gen 3 or Gen 4 designs, utilize the A3 version. Ensure the design accommodates the required 0.7 V differential swing and does not require external termination resistors.

Part Context

This component belongs to the Si53102-A1/A2/A3 family of ultra-small footprint clock buffers. The 'A2' designation identifies it as the model optimized for PCI-Express Gen 2 timing specifications within this series.

Replacement Considerations

Direct functional replacements within the same family include the Si53102-A1-GMR for Gen 1 systems and the Si53102-A3-GMR for Gen 3/4 systems. Verify pin compatibility and thermal characteristics when substituting.