SLAU917B October   2023  – February 2024 AFE20408

 

  1.   1
  2.   Description
  3.   Get Started
  4.   Features
  5.   Applications
  6.   6
  7. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specification
    4. 1.4 Device Information
  8. 2Hardware
    1. 2.1 Hardware Setup
      1. 2.1.1 Hardware Theory of Operation
      2. 2.1.2 Jumper Definitions
      3. 2.1.3 Connector Definitions
      4. 2.1.4 Test Points
    2. 2.2 Hardware Overview
      1. 2.2.1 Electrostatic Discharge Caution
      2. 2.2.2 Connecting the FTDI Digital Controller
      3. 2.2.3 SPI Configuration
      4. 2.2.4 I2C Configuration
      5. 2.2.5 PAON Open Drain Circuit
  9. 3Software
    1. 3.1 Software Setup
      1. 3.1.1 Software Installation
    2. 3.2 Software Overview
      1. 3.2.1 Launching the Software
      2. 3.2.2 Software Features
        1. 3.2.2.1 Low Level Configuration Page
        2. 3.2.2.2 High Level Configuration Page
  10. 4Hardware Design Files
    1. 4.1 Schematics
    2. 4.2 PCB Layout
    3. 4.3 Bill of Materials
  11. 5Additional Information
    1.     Trademarks
  12. 6Revision History

2.1.3 Connector Definitions

Table 3-6 shows the power connector definitions of the AFE20408EVM.

Table 2-2 Power Connector Definitions
DesignatorDefinition
J1USB connector
J3

AFE20408 VCCA supply (3V to 11V)

J4AFE20408 VSSA supply (−11V to −3V)
J5AFE20408 VDD supply (3V to 5.5V)
J7VNEG supply (−10 V to −33 V)
J8AFE20408 VIO supply (1.65V to 3.6V)
J10AFE20408 Ground
J11AFE20408 VCCB supply (3V to 11V)
J12AFE20408 VSSB supply (−11V to −3V)

When powering the EVM, follow these guidelines:

  • Choose between onboard power or external power for VIO and VDD using the J13 jumper. Do not short this jumper and use external power at the same time.
  • The VNEG supply can be used in place of the VSSA and VSSB supplies. Do not short the J29 jumper and use external supplies for VSSA and VSSB at the same time.
  • The VSSA voltage must always be less than (more negative) or equal to the VSSB voltage.
  • To operate the group A DACs in the positive range, apply a positive voltage to VCCA and ground VSSA. To operate the group A DACs in the negative range, apply a negative voltage to VSSA and ground VCCA.
  • To operate the group B DACs in the positive range, apply a positive voltage to VCCB and ground VSSB. To operate the group B DACs in the negative range, apply a negative voltage to VSSB and ground VCCB.
  • To operate in the mixed voltage range, the group B DACs must be positive and the group A DACs must be negative. Apply a positive voltage to VCCB and ground VSSB for the group B DACs, and apply a negative voltage to VSSA and ground VCCA for the group A DACs.

Table 3-3 shows the DAC output header J16 definitions for the AFE20408EVM.

Table 2-3 DAC Output Header J16 Definitions
Pin Definition
2 DACB3 Output
4 OUTB2 Output
6 DACB2 Output
8 DACB1 Output
10 OUTB0 Output
12 DACB0 Output
14 DACA0 Output
16 OUTA0 Output
18 DACA1 Output
20 DACA2 Output
22 OUTA2 Output
24 DACA3 Output
1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23 Ground

Table 3-4 shows other connector definitions for the AFE20408EVM. All of these terminal blocks are unpopulated by default.

Table 2-4 Terminal Block Connector Definitions
DesignatorDefinition
J14Connector for DACA3, OUTA2, DACA2, and VSSA
J15Connector for DACA1, OUTA1, DACA0, and VSSA
J20Connector for DACB3, OUTB2, DACB2, and VSSB
J21Connector for DACB1, OUTB1, DACB0, and VSSB
J25Connector for current sense pins SENSE1+ and SENSE1-
J26Connector for current sense pins SENSE0-, SENSE0+, and ADCHV0