SBAU230C August   2014  – March 2021 ADS8688

 

  1. 1 Trademarks
  2. 2 ADS8688EVM-PDK Overview
  3. 3 EVM Analog Interface
    1. 3.1 ADC Analog Input Connections and Filter
    2. 3.2 Voltage Reference, Aux Input, and Supply Decoupling
  4. 4 Digital Interface
    1. 4.1 Serial Interface (SPI)
    2. 4.2 I2C Bus for Onboard EEPROM
  5. 5 Power Supplies
  6. 6 ADS8688 Initial Setup
    1. 6.1 Software Installation
  7. 7 EVM Operation
    1. 7.1 Connecting the Hardware
    2. 7.2 Modifying Hardware and Using Software to Evaluate Other Devices in the Family
    3. 7.3 EVM GUI Global Settings for ADC Control
    4. 7.4 Time Domain Display
    5. 7.5 Frequency Domain Display
    6. 7.6 Histogram Display
  8. 8 Bill of Materials, Schematics, and Layout
    1. 8.1 Bill of Materials
    2. 8.2 Board Layout
    3. 8.3 Schematic
  9. 10Revision History

7.1 Connecting the Hardware

After installing the software connect the EVM as shown in Figure 7-1

  1. Physically connect P2 of the PHI to J2 of the ADS8688EVM. Install the screws to assure a robust connection
  2. Connect USB on PHI to the computer first
    • LED D5 on the PHI lights up, indicating that the PHI is powered up
    • LEDs D1 and D2 on the PHI start blinking to indicate that the PHI is booted up and communicating with the PC; Figure 7-1 shows the resulting LED indicators
  3. Start the software GUI as shown in Figure 7-2. You will notice that the LEDs blink slowly as the FPGA firmware is loaded on the PHI. This will take a few seconds then the AVDD and DVDD power supplies will turn on.
  4. Connect the signal generators to SMA inputs or headers (8 channels available). The input range is ±10.25V.

GUID-9819BED3-4928-45A8-9FA2-38C03669BB77-low.gifFigure 7-1 ADS8688EVM Hardware Setup and LED Indicators
GUID-20200901-CA0I-4PBB-H1B9-7FRPSFVNMMXD-low.gifFigure 7-2 Launch the EVM GUI Software