SLAU883A March   2024  – June 2024 AMC7908

 

  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
  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. 5.1 Trademarks
  12. 6Revision History

2.1.3 Connector Definitions

Table 3-6 shows the power connector definitions of the AMC7908EVM.

Table 2-2 Power Connector Definitions
DesignatorDefinition
J1USB connector
J3AMC7908 VCCA supply (3V to 11V)
J4AMC7908 VSSA supply (−11V to −3V)
J5AMC7908 VDD supply (3V to 5.5V)
J7VNEG supply (−10V to −33V)
J8AMC7908 VIO supply (1.65V to 3.6V)
J10AMC7908 Ground
J11AMC7908 VCCB supply (3V to 11V)
J12AMC7908 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 AMC7908EVM.

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 AMC7908EVM. 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
J26Connector for current sense pins SENSE0-, SENSE0+, and ADCHV0
J27Connector for current sense pins SENSE1+, SENSE1-, and ADCHV1