UG362: Si5348-E Evaluation Board User s Guide The Si5348-E-EVB is used for evaluating the Si5348 Network Synchronizer Clock for SyncE/1588 and Stratum 3/3E applications. The device revision is distinguished by EVB FEATURES a white 1 inch x 0.187 inch label with the text SI5348-E-EB in the lower left-hand corner of the board. (For ordering purposes only, the terms EB and EVB refer to the Powered from USB port or external +5 V board and the kit respectively. In this document, the terms are synonymous in context.) power supply via screw terminals The Si5348 contains three independent DSPLLs in a single IC with programmable Included SiOCXO1-EB reference OCXO jitter attenuation bandwidth on a per DSPLL basis. The Si5348-E-EVB supports three board allows for evaluation in standalone independent differential input clocks, two independent CMOS input clocks, and seven and holdover mode. independent output clocks via onboard SMA connectors. The Si5348-E-EVB can be Included SiTCXO1-EB reference TCXO controlled and configured via a USB connection to a host PC running Silicon Labs board allows for evaluation in standalone next generation Clock Builder Pro (CBPro) software tool. Test points are provided and holdover mode. on-board for external monitoring of supply voltages. CBPro GUI programmable VDD supply allows device supply voltages from 3.3, The device revision is distinguished by a white 1 inch x 0.187 inch label with the 2.5, or 1.8 V text SI5348-E-EB installed in the lower left hand corner of the board. (For ordering CBPro GUI programmable V DDO purposes only, the terms EB and EVB refer to the board and the kit respectively. For supplies allow each of the seven outputs the purpose of this document, the terms are synonymous in context. to have its own supply voltage selectable from 3.3, 2.5, or 1.8 V This kit comes with an OCXO board SiOCXO1-EB as well as a TCXO board SiTCXO1- CBPro GUI allows control and EB. The OCXO or the TCXO are used on the reference input (REF) of the Si5348 to measurement of voltage, current, and evaluate the holdover stability of the network synchronizer clock. Both boards are not power of VDD and all 8 VDDO supplies needed at the same time, but they are both included in the kit to provide a comparison Status LEDs for power supplies and of the resulting performance. control/status signals of Si5348 SMA connectors for input clocks, output clocks and optional external timing reference clock Skyworks Solutions, Inc. Phone 781 376-3000 Fax 781 376-3100 sales skyworksinc.com www.skyworksinc.com 1 Rev. 0.1 Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice July 26, 2021 1Figure .1. Si5348-E-EVB Figure .2. SiOCXO1-EB (left) SiTCXO1-EB (right) Skyworks Solutions, Inc. Phone 781 376-3000 Fax 781 376-3100 sales skyworksinc.com www.skyworksinc.com 2 Rev. 0.1 Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice July 26, 2021 2