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

3 Digital Interface

The ADS9218 uses an SPI interface to configure the registers (SCLK, SDI, SDO, CS, and SPI_EN). The ADS9218 uses two LVDS interfaces for capturing conversion data for each ADC channel (DOUTP_A, DOUTM_A, DOUTP_B, and DOUTM_B). The SPI and LVDS signals connect to the FMC connector. The FMC connector signal definition is given in Figure 3-1. These signals are also available on tented via test points for scope measurements. Top overlay text indicates the location of these test points.

Figure 3-1 FMC Connector Signals Definition