SLAU942 July   2024

 

  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 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 Electrostatic Discharge Caution
      2. 2.2.2 Connecting the FT4232 Digital Controller
  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
      2. 3.2.2 Software Features
        1. 3.2.2.1 Low Level Configuration Page
        2. 3.2.2.2 High Level Configuration Page
  10. 4Hardware Design Files
    1. 4.1 Schematics
    2. 4.2 PCB Layout
    3. 4.3 Bill of Materials
  11. 5Additional Information
    1. 5.1 Trademarks
  12. 6Related Documentation

2.1.1 Hardware Theory of Operation

The DAC81416-08EVM 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, and supplies.Figure 3-1 shows a block diagram of the DAC81416-08EVM.

DAC81416-08EVM DAC81416-08EVM Theory of Operation Block DiagramFigure 2-1 DAC81416-08EVM 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 DAC81416 VDD supply can use the on-board 5V supply depending on the J6 setting. By default, the VDD supply is connected to the on-board 5V supply. Alternatively, VDD can be supplied externally through banana jack J2. Remove the jumper connector on J6 before connecting external supplies to VDD.

The DAC81416 VIO supply can use the on-board 3.3V or 1.8V supply depending on the jumper J7 setting. By default, the VIO supply is connected to the on-board 3.3V supply. Alternatively, VIO can be supplied externally through banana jack J5. Remove the jumper connector on J7 before connecting external supplies to VIO.

The DAC81416 VCC supply is used to configure the DAC buffer positive output range. Power VCC externally using banana jack J3.

The DAC81416 VSS supply is used to configure the DAC buffer negative output range. Power VSS externally using banana jack J4. If the device is only used in the positive output range, the VSS supply can be grounded using jumper J8. Remove the jumper connector on J8 before connecting external supplies to VSS.