SLVUDY9 September   2026

 

  1.   1
  2.   Description
  3.   Get Started
  4.   Features
  5.   5
  6. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specification
    4. 1.4 Device Information
  7. 2Hardware
    1. 2.1 Power Requirements
    2. 2.2 Jumper Information
    3. 2.3 Setup
  8. 3Software
    1. 3.1 GUI Installation
    2. 3.2 Software Description
      1. 3.2.1 DAC90802 Register Page
      2. 3.2.2 DAC90802 DC Output Page
      3. 3.2.3 DC Linearity Page
      4. 3.2.4 Arbitrary Waveform Generation Page
        1. 3.2.4.1 Quick Start
        2. 3.2.4.2 GUI Control Reference
        3. 3.2.4.3 Update Rate
      5. 3.2.5 Multiplying Mode Page
        1. 3.2.5.1 Multiplying Bandwidth Measurement Setup
        2. 3.2.5.2 Multiplying THD Measurement
  9. 4Hardware Design Files
    1. 4.1 Schematics
    2. 4.2 PCB Layouts
    3. 4.3 Bill of Materials (BOM)
  10. 5Compliance Information
    1. 5.1 Compliance and Certifications
  11. 6Related Documentation

3.2.5.2 Multiplying THD Measurement

The multiplying THD is evaluated using either of the following methods:

  1. External Precision Source: Use a low-distortion sinusoidal source (for example, APx555) as the DAC reference input.
    • Configure the DAC in multiplying mode by clicking on the configure tab of the GUI.
    • Apply the external signal to the channel 1 reference SMA (J2).
    • Measure the DAC output at channel 1 SMA (J4) using a distortion analyzer (APx555).
  2. AWG loopback of channel 0:
    • Open the AWG page and generate the desired sine wave.
    • The GUI automatically configures channel 0 in AWG mode and channel 1 in multiplying mode.
    • Connect the channel 0 Output SMA (J3) to the channel 1 reference SMA (J2) using a SMA to SMA cable.
    • Measure the DAC output at channel 1 SMA (J4)) using a distortion analyzer (APx555).