SLAU898A june   2023  – july 2023

 

  1.   1
  2.   Description
  3.   Get Started
  4.   Features
  5.   Applications
  6.   6
  7. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specification
    4. 1.4 Device Information
  8. 2Hardware
    1. 2.1 Setup
      1. 2.1.1 Electrostatic Discharge Caution
      2. 2.1.2 Power Configurations
      3. 2.1.3 Jumper Information
    2. 2.2 Hardware Description
      1. 2.2.1 Theory of Operation
        1. 2.2.1.1 Digital Interface
        2. 2.2.1.2 Analog
        3. 2.2.1.3 Proto Space
        4. 2.2.1.4 LED Biasing Sub Circuit
  9. 3Hardware Design Files
    1. 3.1 Schematic
    2. 3.2 PCB Layout
    3. 3.3 Bill of Materials
  10. 4Additional Information
    1.     Trademarks
  11. 5Related Documentation from Texas Instruments

2.1.2 Power Configurations

By default, most of Smart DAC EVMs use 5-V USB power. However, the DIY EVM provides multiple access points to connect an external VDD. Please read the appropriate smart DAC EVM user's guide for the required steps to disconnect VDD from USB. The DIY EVM provides 3 access points for both VDD and VREF. Please refer to the table below for more information:

DesignatorNameComponentFunction
J47VDDBanana JackProvides external VDD
J40VDDHeaderProvides VDD connection (pin2) and ground connection (pin1)
TP26VDDTest pointProvides external VDD
J57V_REFBanana jackProvides connection to VREF pin
J53V_REFHeaderProvides V_REF connection (pin2) and ground connection (pin1)