SLVUDU6 April   2026

 

  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 (Diff.)
        2. 2.1.3.2 Fixed Gain Single-Ended Output With Internal Reference (SE Int)
        3. 2.1.3.3 Fixed Gain Ratiometric Output With VDD Reference (R Int)
        4. 2.1.3.4 Single-ended and Ratiometric Output With External Reference (SE/R Ext)
      4. 2.1.4 Modulator Output
        1. 2.1.4.1 Internal Clock Modulator (Mod. Int.)
        2. 2.1.4.2 External Clock Modulator (Mod. Ext.)
    2. 2.2 VDD Power Supply
    3. 2.3 EVM Operation
      1. 2.3.1 Analog Input
      2. 2.3.2 Outputs and VDD 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 Schematic
    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

AMC43xxDVVEVM Analog Input Circuit SchematicFigure 2-1 Analog Input Circuit Schematic

The analog input circuit for the AMC43xxDVVEVM is shown in Figure 2-1.

The analog input to EVM is routed from terminal block J1 and test points INP, INN, and HGND. The passive components R3, R4 and C1 create a standard RC anti-aliasing filter with a cutoff frequency of 796kHz. By default, R2 ties INN to HGND to verify that the input signal remains within the input common-mode voltage range specification of the AMC43xxDVV while R1 is not populated. FB1, FB2 and FB3 are installed by default for EMC compliance but is not necessary for all applications. Depending on the exact application of the AMC43xxDVV in the application, the ferrite bead selection can need adjustment. Please refer to the respective device datasheet for additional information.

Using a signal generator or other voltage source, the user can apply an input signal directly to INP with respect to INN and HGND. The linear input voltage range of the EVM depends on the installed device. Reference the device datasheet for more information.