SNAU266A July   2021  – August 2022

 

  1.   Abstract
  2. 1First-Time Setup
    1. 1.1 Evaluation Module Contents
    2. 1.2 Evaluation Setup Requirements
  3. 2EVM Connections
    1. 2.1 Connection Diagram
    2. 2.2 Power Supply
    3. 2.3 Reference Clock
    4. 2.4 Output Connections
    5. 2.5 Programming Interface
  4. 3Feature Evaluation
    1. 3.1 Buffer, Divider, and Multiplier Modes
    2. 3.2 SYSREF Generation
    3. 3.3 SYSREF Delay Generators
  5. 4Schematic
  6. 5PCB Layout and Layer Stack-Up
    1. 5.1 PCB Layer Stack-Up
    2. 5.2 PCB Layout
  7. 6Bill of Materials
  8.   A Troubleshooting
  9.   B USB2ANY Firmware Upgrade
  10.   C Revision History

2.2 Power Supply

Apply 3.3 V to the J23 header. The acceptable supply voltage range at the board is 3.1 V to 3.5 V, and the device can draw up to 1.3 A during operation, so resistive drop in supply cables can be non-negligible. The on-board LDO has an about 40mA ground current for converting 3.3V to 2.5V supply. Furthermore, enabling or disabling various system functions can change the device current by 50% or more.