SBAU352 June   2020 ADS131B04-Q1

 

  1.   ADS131B04-Q1 Evaluation Module
    1.     Trademarks
    2. 1 EVM Overview
      1. 1.1 ADS131B04-Q1EVM Kit
      2. 1.2 ADS131B04-Q1EVM Board
    3. 2 EVM Analog Interface
      1. 2.1 ADC Analog Input Signal Path
      2. 2.2 ADC External Clock (CLKIN) Options
    4. 3 Digital Interface
      1. 3.1 SPI Communication
      2. 3.2 Connection to the PHI
      3. 3.3 Digital Header
      4. 3.4 LaunchPad Connectors
    5. 4 Power Supplies
    6. 5 ADS131B04-Q1EVM Initial Setup
      1. 5.1 Default Jumper Settings
      2. 5.2 EVM Graphical User Interface (GUI) Software Installation
    7. 6 ADS131B04-Q1EVM Operation
      1. 6.1 EVM GUI Global Settings for ADC Control
      2. 6.2 Register Map Configuration Tool
      3. 6.3 Time Domain Display Tool
      4. 6.4 Spectral Analysis Tool
      5. 6.5 Histogram Tool
    8. 7 ADS131B04-Q1EVM Bill of Materials, PCB Layout, and Schematic
      1. 7.1 Bill of Materials
      2. 7.2 PCB Layout
      3. 7.3 Schematic

3.2 Connection to the PHI

The ADS131B04-Q1EVM board communicates with the PHI through a shrouded, 60-pin connector, J5. There are two round standoffs next to J5 with Phillips-head screws. To connect the PHI to the EVM, remove the screws, attach the PHI to the EVM, and replace the screws into the standoffs. The screws secure the EVM to the PHI and ensures the connection between the boards.

Table 5 lists the different PHI connection and their functions.

Table 5. PHI Connector Pin Functions

PHI Connector Pin Name PHI Connector Pin Function
EVM_RAW_5V J5[2] Power-supply source for the analog section of the EVM
GND J5[3] Ground
SYNC/RESET J5[10] Conversion synchronization or system reset for the ADS131B04-Q1; active low
DIN J5[18] Serial data input for the ADS131B04-Q1
CLK J5[20] Master clock input for the ADS131B04-Q1
CS J5[22] Chip select for the ADS131B04-Q1; active low
SCLK J5[24] Serial data clock for the ADS131B04-Q1
SCLK J5[28] Serial data clock for the ADS131B04-Q1
DRDY J5[30] Data ready for the ADS131B04-Q1; active low
DOUT J5[36] Serial data output for the ADS131B04-Q1
EVM_DVDD J5[50] Power-supply source for the digital section of the EVM
SDA J5[56] I2C serial data for the EEPROM used to identify the EVM
SCL J5[58] I2C serial clock for the EEPROM used to identify the EVM
EVM_ID_PWR J5[59] Power-supply source for the EEPROM used to identify the EVM
GND J5[60] Ground