SBAU396 May   2022

 

  1.   Abstract
  2.   Trademarks
  3. 1Introduction
    1. 1.1 Features
  4. 2ADC-PHI-PRU-EVM Overview
  5. 3ADC-PHI-PRU-EVM Circuitry
    1. 3.1 Power Circuitry
    2. 3.2 MUX Circuitry
    3. 3.3 Board Mating Connections
  6. 4Schematics, PCB Layout, and Bill of Materials
    1. 4.1 Schematics
    2. 4.2 ADC-PHI-PRU-EVM Layout
    3. 4.3 Bill of Materials

1 Introduction

The ADC-PHI-PRU-EVM evaluation adapter card interfaces the Sitara™ AM64x processor (TMDS64GPEVM) or AM243x MCU (TMDS243GPEVM) development platforms to greater than 25 precision ADC EVMs for communication, data capture, and software development. The adapter card routes the ICSSG-PRU signals to the corresponding serial (SPI and eSPI) or parallel ADC data communication interfaces. The adapter card offers configurability through two jumpers that select between serial or parallel connections, and also offers a user-selectable digital power to match the required digital and analog supply voltage levels of the precision ADC EVM. The programmability of the Sitara ICSSG-PRU peripheral allows for high-speed data capture along with data preprocessing. Remove the extra microcontroller (MCU) or field-programmable gate array (FPGA) on your current design and start your system precision analog-to-digital converter (ADC) and AM64x, AM243x software development today with the ADC-PHI-PRU-EVM.

Table 1-1 lists the precision EVMs compatible with the ADC-PHI-PRU-EVM.

Table 1-1 ADC-PHI-PRU-EVM Compatible Precision ADC EVMs
EVM CONVST Connection

(J2)

 MUX Mode Selection

(J9)

DVDD Power Supply Voltage (J11)

 Comments
AMC131M03EVM-PDK Serial

3.3 V
ADC128S102EVM Serial 3.3 V
ADS127L11EVM Serial

1.8 V
ADS1285EVM-PDK Serial 3.3 V
ADS131A04EVM Serial 3.3 V
ADS131B04-Q1EVM Serial 3.3 V
ADS131B26Q1EVM-PDK Serial 3.3 V
ADS131M04EVM Serial 3.3 V
ADS704x-5xEVM Serial 3.3 V
ADS8168EVM-PDK Serial 3.3 V
ADS8332V2EVM-PDK PRU1_GPIO17 Serial 3.3 V
ADS8353Q1EVM-PDK Serial 3.3 V
ADS8588SEVM-PDK PRU1_GPIO17 Parallel 3.3 V Short CONVST A/B together
ADS8681EVM-PDK PRU1_GPIO17 Serial 3.3 V
ADS8686SEVM-PDK PRU1_GPIO17 Parallel 3.3 V
ADS8688EVM-PDK Serial 3.3 V
ADS8860V2EVM-PDK PRU1_GPIO17 Serial 3.3 V
ADS8881V2EVM-PDK PRU1_GPIO17 Serial 3.3 V
ADS8900BV2EVM-PDK PRU1_GPIO17 Serial 3.3 V
ADS9110EVM-PDK PRU1_GPIO17 Serial 3.3 V
TLV2553EVM-PDK Parallel 3.3 V