Si52144-EVB Si52144 EVALUATION BOARD USERS GUIDE Description EVB Features The Si52144 is a four port PCIe clock generator This document is intended to be used in conjunction compliant with the PCIe Gen1, Gen2 and Gen3 with the Si52144 device and data sheet for the following standards. The Si52144 is a 24-pin QFN device that tests: operates on a 3.3 V power supply and can be controlled PCIe Gen1, Gen2, Gen3 compliancy using SMBus signals along with hardware control input Power consumption test pins. The differential outputs support spread spectrum Jitter performance and can be controlled through SSON input pin. The 2 Si52144 needs a crystal or clock input of 25 MHz. The Testing out I C code for signal tuning connections are described in this document. In-system validation where SMA connectors are present VDD = 3.3 V GND power supply Power connectors External Clock Input DIFF3 Output Enable SDATA SRC3 GND connection SCLK for application Si52144 DIFF1 Output Enable SRC2 Spread Selection connection DIFF2 Output Enable for DIFF0 Output Enable application SRC0 SRC1 connection for connection for application application Skyworks Solutions, Inc. Phone 781 376-3000 Fax 781 376-3100 sales skyworksinc.com www.skyworksinc.com Rev. 0.1 Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice December 10, 2021 1. Front Panel Figure 1. Evaluation Module Front Panel Table 1. Input Jumper Settings Jumper Label Type Description OE0 I OE0, 3.3 V Input for Enabling DIFF0 Clock Output. 1 = DIFF0 enabled, 0 = DIFF0 disabled. OE1 I OE1, 3.3 V Input for Enabling DIFF1 Clock Output. 1 = DIFF1 enabled, 0 = DIFF1 disabled. OE2 I OE2, 3.3 V Input for Enabling DIFF2 Clock Output. 1 = DIFF2 enabled, 0 = DIFF2 disabled. OE3 I OE3, 3.3 V Input for Enabling DIFF3 Clock Output. 1 = DIFF3 enabled, 0 = DIFF3 disabled. SSON I SSON Input, 3.3 V-Tolerant Active Input for Spread Selection. Internal 100 k pulldown. Refer to Table 2. SDATA I/O SMBus-Compatible SDATA. SCLK I SMBus-Compatible SCLOCK. 2 Skyworks Solutions, Inc. Phone 781 376-3000 Fax 781 376-3100 sales skyworksinc.com www.skyworksinc.com Rev. 0.1 Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice December 10, 2021