Si52112-B5/B6 PCI-EXPRESS GEN 3 DUAL OUTPUT CLOCK GENERATOR Features PCI-Express Gen 1, Gen 2, and Triangular spread spectrum profile Gen 3 common clock compliant for maximum EMI reduction (Si52112-B6) Gen 3 SRNS Compliant Extended Temperature: Low power HCSL differential output buffers 40 to 85 C Supports Serial-ATA (SATA) at 3.3 V Power supply 100 MHz Small packages: No termination resistors required 8-pin TDFN (1.4 x 1.6 mm) 25 MHz Crystal Input or Clock 10-pin TDFN (3 x 3 mm) input Ordering Information: Si52112-B5 does not support spread spectrum outputs See page 13 Si52112-B6 supports 0.5% down spread outputs Patents pending Applications Network attached storage Wireless access point Multi-function printer Routers PCIe Add-on Cards Digital Still Cameras Network Interface Cards Digital Video Cameras Docking Stations Description Si52112-B5/B6 is a high-performance, PCIe clock generator that can source two PCIe clocks from a 25 MHz crystal or clock input. The clock outputs are compliant to PCIe Gen 1, Gen 2, Gen 3 common clock, and Gen 3 SRNS specifications. The ultra-small footprint (1.4 x 1.6 mm) and industry leading low power consumption make Si52112-B5/B6 the ideal clock solution for applications with tight board space constraints. Measuring PCIe clock jitter is quick and easy with the Skyworks Solutions PCIe Clock Jitter Tool. Download it for free at Si52112-B5/B6 TABLE OF CONTENTS Section Page 1. Electrical Specifications .3 2. Crystal Recommendations .6 2.1. Crystal Loading 6 2.2. Calculating Load Capacitors 7 3. Test and Measurement Setup .8 4. Pin Descriptions .10 4.1. 8-Pin TDFN 10 4.2. 10-Pin TDFN .11 4.3. 8-Pin TSSOP .12 5. Ordering Guide 13 6. Package Outlines 14 6.1. 8-Pin TDFN Package 14 6.2. 10-Pin TDFN Package .16 6.3. TSSOP Package 18 7. Recommended Design Guideline .20 Revision History .21 Contact Information 22 Skyworks Solutions, Inc. Phone 781 376-3000 Fax 781 376-3100 sales skyworksinc.com www.skyworksinc.com 2 Rev. 1.3 Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice August 31, 2021