SBAU448 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 Performance Development Kit Contents
    3. 1.3 Specification
    4. 1.4 Device Information
  8. 2Hardware
    1. 2.1 EVM Analog Interface
      1. 2.1.1 ADC Analog Input Signal Path
      2. 2.1.2 Onboard ADC Reference
    2. 2.2 Power Supplies
  9. 3Software
    1. 3.1 Digital Interfaces
      1. 3.1.1 multiSPITM SPI for ADC Digital IO
    2. 3.2 ADS8681WEVM-PDK Initial Setup
      1. 3.2.1 Default Jumper and Switch Settings
      2. 3.2.2 EVM Graphical User Interface (GUI) Software Installation
  10. 4Implementation Results
    1. 4.1 ADS8681WEVM-PDK Operation
      1. 4.1.1 EVM GUI Global Settings for ADC control
      2. 4.1.2 Register Map Configuration Tool
      3. 4.1.3 Time Domain Display Tool
      4. 4.1.4 Histogram Tool
      5. 4.1.5 Spectral Analysis Tool
      6. 4.1.6 Linearity Analysis Tool
  11. 5Hardware Design Files
    1. 5.1 ADS8681WEVM-PDK Schematic
    2. 5.2 PCB Layout
    3. 5.3 Bill of Materials
  12. 6Additional Information
    1. 6.1 Trademarks
  13. 7Related Documentation

5.2 PCB Layout

The EVM PCB layouts are illustrated in Figure 5-2 through Figure 5-5.

ADS8681WEVM-PDK ADS8681WEVM PCB Layer 1 – Top LayerFigure 5-2 ADS8681WEVM PCB Layer 1 – Top Layer
ADS8681WEVM-PDK ADS8681WEVM PCB Layer 2 – GND PlaneFigure 5-3 ADS8681WEVM PCB Layer 2 – GND Plane
ADS8681WEVM-PDK ADS8681WEVM PCB Layer 3 – Power PlanesFigure 5-4 ADS8681WEVM PCB Layer 3 – Power Planes
ADS8681WEVM-PDK ADS8681WEVM PCB Layer 4 – Bottom LayerFigure 5-5 ADS8681WEVM PCB Layer 4 – Bottom Layer