SBAU413A october   2022  – may 2023

 

  1.   Abstract
  2.   Trademarks
  3. 1EVM Overview
    1. 1.1 ADS131B26Q1EVM-PDK Features
    2. 1.2 ADS131B26Q1EVM-PDK Quick-Start Guide
  4. 2Analog Interface
    1. 2.1 Terminal Blocks and Test Points
    2. 2.2 ADC1A and ADC1B
    3. 2.3 ADC2A and ADC2B
    4. 2.4 ADC3A and ADC3B
  5. 3Digital Interface
    1. 3.1 Connection to the PHI Controller
    2. 3.2 Digital Header
    3. 3.3 Clock Options
  6. 4Power Supplies
    1. 4.1 DC/DC Converter Circuit
    2. 4.2 ADC Power Supplies
    3. 4.3 Power Supply and Voltage Reference Decoupling
  7. 5ADS131B26Q1EVM-PDK Initial Setup
    1. 5.1 Default Jumper Settings
    2. 5.2 EVM Graphical User Interface (GUI) Software Installation
  8. 6ADS131B26Q1EVM-PDK Software Reference
    1. 6.1 Global Settings for ADC Control
    2. 6.2 Register Map Configuration
      1. 6.2.1 Register Map Basics
      2. 6.2.2 ADC1A, ADC3A and ADC1B, ADC3B Configuration
      3. 6.2.3 ADC2A and ADC2B Configuration
    3. 6.3 Analysis Tools
      1. 6.3.1 Time Domain Display
      2. 6.3.2 Spectral Analysis Tool
      3. 6.3.3 Histogram Analysis
      4. 6.3.4 Sequencer Analysis
  9. 7ADS131B26Q1EVM-PDK Bill of Materials, PCB Layout, and Schematics
    1. 7.1 Bill of Materials (BOM)
    2. 7.2 PCB Layout
    3. 7.3 Schematics
  10. 8Revision History

5.1 Default Jumper Settings

After unpacking, the EVM is configured with the default jumper settings. Figure 5-1 shows the locations for the default jumpers and Table 5-1 shows the functions of the default shunts.

GUID-20220920-SS0I-JL22-RQ3Q-2Q6SPHDXQVQ0-low.svgFigure 5-1 ADS131B26Q1-PDK Jumper Default Settings
Table 5-1 Default Jumper Settings
Designator Position Function
JP1 [1-2] RCAPA is selected as bias voltage for the TMP61
JP2 [2-3] Selects the transformer output as the APWR supply
JP3 [2-3] Selects the transformer output as the DPWR supply
JP4 Not installed The transformer driver is enabled
JP5 Installed The onboard crystal oscillator is disabled

Table 5-2 lists the nominal voltages that result from the default configuration.

Table 5-2 Nominal Voltages: Default Configuration
Supply Name Voltage
ISO_VCC 3.3 V
ISO_3V3 3.3 V
VADC_HV 5.1 V
APWR 5.1 V
DPWR 5.1 V
AVDD 3.3 V
DVDD 3.3 V
RCAPA 1.25 V
RCAPB 1.25 V
Note: Voltages are measured with respect to the local ground on the same side of the isolation barrier.