SLAU916 May   2024

 

  1.   1
  2.   Description
  3.   Getting 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 Hardware Setup
      1. 2.1.1 Hardware Theory of Operation
      2. 2.1.2 Jumper Definitions
      3. 2.1.3 Connector Definitions
      4. 2.1.4 Test Points
    2. 2.2 Hardware Overview
      1. 2.2.1 Connecting the FT4232 Digital Controller
      2. 2.2.2 SPI Configuration
      3. 2.2.3 I2C Configuration
      4. 2.2.4 Glitch Testing
  9. 3Software
    1. 3.1 Software Setup
      1. 3.1.1 Software Installation
    2. 3.2 Software Overview
      1. 3.2.1 Launching the Software
    3. 3.3 Software Features
      1. 3.3.1 Low Level Configuration Page
      2. 3.3.2 High Level Configuration Page
  10. 4Hardware Design Files
    1. 4.1 Schematics
    2. 4.2 PCB Layouts
    3. 4.3 Bill of Materials
  11. 5Additional Information
    1. 5.1 Trademarks
  12. 6Related Documentation

2.1.1 Hardware Theory of Operation

The DAC80516EVM is connected to the computer through the on-board FT4232 digital controller using the USB cable that is supplied with the EVM. The evaluation board features connectors and test points for all communication lines, DAC outputs, digital pins, and supplies. Figure 3-1 shows a block diagram of the DAC80516EVM.

DAC80516EVM DAC80516EVM Theory of Operation Block DiagramFigure 2-1 DAC80516EVM Theory of Operation Block Diagram

The USB connection provides the 5V supply to the EVM. Voltage regulators generate 3.3V and 1.8V from the USB 5V supply. These 3.3V and 1.8V supplies are used to power the FT4232 controller.

The DAC80516 AVDD supply can use the on-board 5V or 3.3V supplies depending on the jumper J6 setting. By default, AVDD is connected to the on-board 5V supply. Alternatively, AVDD can be supplied externally through banana jack J4. Remove the jumper connector on J6 before connecting external supplies to AVDD.

The DAC80516 VIO supply can use the on-board 1.8V or use the same voltage as AVDD depending on the jumper J5 setting. By default, VIO is connected to AVDD. Alternatively, VIO can be supplied externally through banana jack J8. Remove the jumper connector on J5 before connecting external supplies to VIO.

The device reference voltage can be supplied via an on-board 2.5V voltage regulator by shorting jumper J12, or from an external supply with SMA J10. Make sure that the DAC80516 internal reference is powered off before connecting any other voltage supply to the REF pin.

Each of the DAC outputs have optional capacitative and resistive loads that are not populated by default. In addition, C36 is a dedicated capacitor footprint that is isolated from the ground and power planes of the EVM. This capacitor can be used for precise glitch measurements.