Si5344-D-EVB Si5344-D EVALUATION BOARD USERS GUIDE Description Features The Si5344-D-EVB is used for evaluating the Si5344 Powered from USB port or external power supply Any-Frequency, Any-Output, Jitter-Attenuating Clock Onboard 48 MHz XTAL or Reference SMA Inputs Multiplier Revision D. The device revision is allow holdover mode of operation on the Si5344. distinguished by a white 1 inch x 0.187 inch label with ClockBuilder Pro (CBPro) GUI-programmable VDD the text SI5344-D-EB installed in the lower left hand supply allows device to operate from 3.3, 2.5, or 1.8 V. corner of the board. (For ordering purposes only, the CBPro GUI-programmable VDDO supplies allow terms EB and EVB refer to the board and the kit each of the 10 outputs to have its own supply voltage respectively. For the purpose of this document, the selectable from 3.3, 2.5, or 1.8 V terms are synonymous in context.) CBPro GUI-controlled voltage, current, and power measurements of VDD and all VDDO supplies. Status LEDs for power supplies and control/status signals of Si5344 SMA connectors for input clocks, output clocks, and optional external timing reference clock Si5344-D Evaluation Board Rev. 1.0 12/18 Copyright 2018 by Silicon Laboratories Si5344-D-EVBSi5344-D-EVB 1. Functional Block Diagram Below is a functional block diagram of the Si5344-EB. This evaluation board can be connected to a PC via the main USB connector for programming, control, and monitoring. See Section 3. Quick Start or Section 9. Installing ClockBuildPro (CBPro) Desktop Software for more information. MainUSB Poweronly +5V USB Connector PowerSupply Ext+5V +5V Ext Connector VDDMCU I2C/SPIBus I2C/SPIBus C8051F380 Control/ Status MCU + Peripherals INTR Alarm Status Si5344 48MHz XA XTAL XB IN 0 OUT 0 Input Output InputClock0 OutputClock0 Termination Termination IN 0B OUT 0B IN 1 OUT 1 Input Output InputClock1 OutputClock1 Termination Termination IN 1B OUT 1B IN 2 OUT 2 Input Output OutputClock2 InputClock2 Termination Termination IN 2B OUT 2B IN 3 OUT 3 Input Output OutputClock3 InputClock3 Termination Termination IN 3B OUT 3B Figure 1. Si5344-EB Functional Block Diagram 2 Rev. 1.0 VDD Core VDD Core VDD 3.3 VDD 3.3 VDDO 0 VDDO 0 VDDO 1 VDDO 1 VDDO 2 VDDO 2 VDDO 3 VDDO 3