SBAU193E June   2011  – May 2021 ADS8568

 

  1.   Trademarks
  2. 1EVM Overview
    1. 1.1 ADS8568EVM-PDK Kit Features
    2. 1.2 ADS8568EVM Board Features
    3. 1.3 Related Documentation From Texas Instruments
  3. 2EVM Analog Interface
    1. 2.1 ADC Supply, Input, Voltage Reference, and Digital Connections
    2. 2.2 ADC Amplifier Drive
  4. 3Digital Interface
    1. 3.1 Parallel Interface
    2. 3.2 Serial Interface (SPI)
    3. 3.3 Connections to PHI connector
    4. 3.4 Static Signals for ADS8568
    5. 3.5 I2C Bus for Onboard EEPROM
  5. 4Power Supplies
    1. 4.1 Low Dropout Regulator
    2. 4.2 Power Connections and LED Indicators
  6. 5Installing ADS8568EVM Software
  7. 6ADS8568EVM Operation
    1. 6.1 Connecting the Hardware and Running the GUI
    2. 6.2 Jumper Settings for ADS8568EVM
    3. 6.3 EVM GUI Global Settings for ADC Control
    4. 6.4 Time Domain Display
    5. 6.5 Frequency Domain Display
    6. 6.6 Histogram Display
  8. 7Modifying Hardware and Using Software to Evaluate ADS8548 and ADS8528
  9.   A Bill of Materials, Layout, and Schematic
    1.     A.1 Bill of Materials
    2.     A.2 Layout
    3.     A.3 Schematic
  10.   B Revision History

6.1 Connecting the Hardware and Running the GUI

  1. Set the jumpers according to Table 6-1.
  2. Physically connect P2 of the PHI to J10 of the ADS8568EVM. Install the screws to assure a robust connection.
  3. Connect USB on PHI to the computer first.
    1. LED D5 on the PHI lights up, indicating that the PHI is powered up.
    2. LEDs D1 and D2 on the PHI start blinking to indicate that the PHI is booted up and communicating with the PC; Figure 6-1 shows the resulting LED indicators.
  4. Start the software GUI as shown in Figure 6-2. 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.
  5. Connect the high voltage power supplies (HVDD = +15 V, HVSS = -15 V, and GND).
  6. Connect the signal generator. The default input range is ±10 V (or 10Vpk). A common input signal applied is a sinusoidal 1kHz, 9.9Vpk signal with a 0 V offset. Note that this signal is adjusted just below the full scale range to avoid clipping.
GUID-20201222-CA0I-QSSC-VRXQ-RMWNWF31ZFKT-low.gif Figure 6-1 ADS8568EVM Hardware Setup and LED Indicators

Figure 6-2 shows how the software can be started on the start menu or using a desktop icon.

GUID-20200707-SS0I-X58W-143W-2MFQF6HXWQVR-low.gif Figure 6-2 Launch the EVM GUI Software