SBAU409A September   2022  – November 2022

 

  1.   Abstract
  2.   Trademarks
  3. 1Overview
    1. 1.1 ADS9218EVM-PDK Features
    2. 1.2 ADS9218EVM Features
  4. 2Analog Interface
    1. 2.1 ADS9218 Device Connections
    2. 2.2 ADC Differential Input Fully Differential Amplifier (FDA)
    3. 2.3 Common Mode Amplifier Drive
    4. 2.4 Voltage Reference
  5. 3Digital Interface
    1. 3.1 Clock Connection
  6. 4Power Supplies
  7. 5ADS9218EVM Software Installation
  8. 6EVM Operation
    1. 6.1 USB Driver Installation
    2. 6.2 Connecting the Hardware and Starting Software
    3. 6.3 Optional Connections to the EVM
    4. 6.4 Initial Required Setup on the Config Tab
    5. 6.5 Initial Required Setup on the Capture Tab
  9. 7Bill of Materials, Schematics, and Layout
    1. 7.1 Bill of Materials (BOM)
    2. 7.2 Schematics
    3. 7.3 Layout
  10. 8Revision History

6.2 Connecting the Hardware and Starting Software

  1. Connect the EVM and set the jumpers as shown in Figure 6-3 after installing the software.
  2. Connect a 5-V wall-wart connector or other power source for the TSWDC155EVM (sold separately). The TSWDC155EVM user guide provides information on this power source.
  3. Physically connect J1 of the TSWDC155EVM to J27 of the ADS9218EVM. This component is the digital communications and power signal connection.
  4. Connect the USB on the TSWDC155EVM to the computer.
  5. Set jumper J18 to the EXT_PWR position to allow for an external power connection. Connect an external 5.2-V to 5.5-V supply on screw terminal connection J17.
  6. Start the software GUI as described in Figure 6-4.
  7. Press the Initialize USB, Power Up, Program FPGA, and Initialize ads92xx buttons on the Config tab to power up and configure the EVM (see Figure 6-6 for details).
  8. Connect a differential signal generator. The maximum input range is ±3.2 V and the common-mode input is 2.048 V.
Figure 6-3 Connecting the Hardware
Figure 6-4 Start the Software GUI