SLAU913 august   2023 AFE539A4

 

  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 Description
      1. 2.1.1 Theory of Operation
        1. 2.1.1.1 Signal Definitions
    2. 2.2 Hardware Setup
      1. 2.2.1 Electrostatic Discharge Caution
      2. 2.2.2 Power Configurations and Jumper Settings
      3. 2.2.3 Connecting the Hardware
  9. 3Software
    1. 3.1 Software Setup
      1. 3.1.1 Operating Systems
      2. 3.1.2 Software Installation
    2. 3.2 Software Description
      1. 3.2.1 Starting the Software
      2. 3.2.2 Software Features
        1. 3.2.2.1 High Level Configuration Page
        2. 3.2.2.2 Low Level Configuration Page
  10. 4Hardware Design Files
    1. 4.1 Schematic
    2. 4.2 PCB Layout
    3. 4.3 Bill of Materials
  11. 5Additional Information
    1.     Trademarks
  12. 6Related Documentation from Texas Instruments

2.2.2 Power Configurations and Jumper Settings

The AFE539A4EVM provides electrical connections to the device supply pins. The connections are shown in Table 3-3.

Table 2-3 AFE539A4EVM Power Supply Inputs

AFE539A4EVM

Connector		 Supply Name Voltage Range
J2.1 VDD 1.8 V to 5.5 V (5 V available from the USB); remove J3 if applying an external VDD to the AFE.
J1.1 GND 0 V

The jumper settings on the AFE539A4EVM are crucial to the proper operation of the EVM. Table provides the details of the configurable jumper settings on the EVM. The AFE539A4EVM pin numbers are defined in Table 3-4.

Table 2-4 AFE539A4EVM Jumper Settings
Jumper Default Position Available Option Description
J3 Closed: 5-V USB supply connected to DAC VDD Open: 5-V USB supply disconnected from DAC VDD External or on-board VDD selection
J5 2-3: I2C enabled 1-2: SPI enabled I2C or SPI selection
J6 Closed: GPIOs enabled Open: GPIOs disabled Controller GPIO enable

If an external supply is applied to the AFE VDD pin, then remove jumper J3 to disconnect the 5-V USB supply from the DAC VDD pin.

GPIO2 from the on-board controller is connected to the AFE GPIO pin of the AFE539A4EVM. This input can be controlled through the graphical user interface (GUI). If the AFE GPIO is configured as an output, remove J6 to disable the GPIOs from the on-board controller.

GPIO3 from the onboard controller is broken out to J1, pin 8 and is controlled through the GUI using the controls for GPIO3.

To enable the GPIO pins, close jumper J6. To disable the GPIO pins, remove jumper J6.