SLAU920 November   2023 DAC80504 , DAC80508

 

  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 FTDI 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.     Trademarks
  12. 6Related Documentation

2.2.2 Connecting the FTDI Digital Controller

To connect the FTDI digital controller on the EVM board to the computer, align and firmly connect the USB connector to the J3 connector. Verify the connection is snug; a loose connection can cause intermittent operation. A 100 mil header (J15) is available for external communication. Table 3-6 lists the J15 pin definitions. To use external communication, close jumper J1 to disable the connection to the FTDI controller.

Table 2-6 Digital Header J15 Pin Definitions
PinDefinition
2

DAC80508: POCI

DAC80508C: CLEAR

If using the CLEAR version of the DAC80508, then TI recommends to install a pull-up resistor to VIO using R33.

4CS
6PICO
8SCLK
1, 3, 5, 7Ground

Additionally, the board has a dedicated 100 mil header for the DAC80504 digital pins. The DUT connects to this header with 0 Ω resistors, which are unpopulated by default. If the DAC80504 is used, then TI recommends to populate R29, R30, R31, and R32 to connect the GAIN, RSTSEL, REFDIV, and LDAC to the FTDI and digital header. Table 3-7 lists the pin definitions.

Table 2-7 Digital Header J9 Pin Definitions
Pin Definition
2 GAIN
4 RSTSEL
6 REFDIV
8 LDAC
1, 3, 5, 7 Ground