Si53154 PCI-EXPRESS GEN 1, GEN 2, GEN 3, AND GEN 4 QUAD FANOUT BUFFER Features PCI-Express Gen 1, Gen 2, Gen 3, Four PCI-Express buffered clock and Gen 4 common clock outputs compliant Clock input spread tolerable Supports Serial ATA (SATA) at Supports LVDS outputs 100 MHz 2 I C support with readback 100210 MHz operation capabilities Low power, push pull, differential Extended temperature: output buffers 40 to 85 C Internal termination for maximum 3.3 V power supply integration 24-pin QFN package Dedicated output enable pin for Ordering Information: each output See page 17. Applications Pin Assignments Network attached storage Wireless access point Multi-function printers Routers Description 24 23 22 21 20 19 VDD 1 18 OE3* The Si53154 is a spread spectrum tolerant PCIe clock buffer that can source VDD 17 OE1* 2 four PCIe clocks simultaneously. The device has four hardware output enable VDD 16 3 DIFF3 25 control inputs for enabling the respective differential outputs on the fly. The GND DIFF3 15 VSS 4 2 2 device also features output enable control through I C communication. I C 14 DIFF2 OE2* 5 programmability is also available to dynamically control skew, edge rate and 13 DIFF2 VDD 6 amplitude on the true, compliment, or both differential signals on the clock 7 8 9 10 11 12 outputs. This control feature enables optimal signal integrity as well as opti- mal EMI signature on the clock outputs. Measuring PCIe clock jitter is quick *Note: Internal 100 kohm pull-up. and easy with the Skyworks Solutions PCIe Clock Jitter Tool. Download it for free at Si53154 2 Skyworks Solutions, Inc. Phone 781 376-3000 Fax 781 376-3100 sales skyworksinc.com www.skyworksinc.com Rev. 1.3 Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice September 3, 2021