SBAU468 September   2024

 

  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 Interfaces
      1. 2.1.1 Analog Input
      2. 2.1.2 EVM Output Configurations and Descriptions
      3. 2.1.3 Amplifier Output
        1. 2.1.3.1 Differential Output
        2. 2.1.3.2 Single-Ended Output, Fixed Gain
        3. 2.1.3.3 Single-Ended Output, Ratiometric Gain
      4. 2.1.4 Modulator Output
        1. 2.1.4.1 External Clock
    2. 2.2 Power Supplies
      1. 2.2.1 VDD1/AVDD Input
      2. 2.2.2 VDD2/DVDD Input
    3. 2.3 EVM Operation
      1. 2.3.1 Analog Input and VDD1/AVDD Power
      2. 2.3.2 Outputs and VDD2/DVDD Power
      3. 2.3.3 Test Procedure
        1. 2.3.3.1 Equipment Setup
        2. 2.3.3.2 Procedure
  9. 3Hardware Design Files
    1. 3.1 Schematics
    2. 3.2 PCB Layout
    3. 3.3 Bill of Materials
  10. 4Additional Information
    1. 4.1 Trademarks
  11. 5Related Documentation

2.1.1 Analog Input

AMC038XEVM Analog Input Circuit SchematicFigure 2-1 Analog Input Circuit Schematic

The analog input circuit for the AMC038XEVM is shown in Figure 2-1.

The high voltage input is accessible through the turret connector (VHV1). The passive components R3 and R6 need to be populated and de-populated, respectively. The components do not need to be modified, and must be kept as is for all device variants. Also, present on the input side are decoupling capacitors. C11 and C12 provide decoupling for the high-side supply, and C7 provides stability for the VSNS node.

Using a signal generator or other voltage source, the user can apply an input signal directly to VHV1. The linear input voltage range of the EVM varies by device selected for the configuration of the user. Reference the device data sheet for more information.