SLAU917B October   2023  – February 2024 AFE20408

 

  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
      5. 2.2.5 PAON Open Drain Circuit
  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.     Trademarks
  12. 6Revision History

1.1 Introduction

The AFE20408 is a highly integrated power-amplifier monitor and control device capable of temperature, current, and voltage supervision. The AFE20408 bias controller features eight digital-to-analog converters (DAC) with programmable output ranges. The eight gate bias outputs are switched on and off through dedicated control pins.

The AFE20408 supervisor also features a highly-accurate multi-channel analog-to-digital converter (ADC). The device integrates two high-voltage inputs, two high-side current-sense amplifiers, and an on-chip temperature sensor.

The function integration and wide operating temperature range make the AFE20408 an excellent choice for an all-in-one, bias control circuit for the power amplifiers found in RF communication systems.

This user's guide describes the characteristics, operation, and recommended use cases of the AFE20408EVM. This document provides examples and instructions on how to use the AFE20408EVM board and included software. Throughout this document, the terms evaluation board, evaluation module, and EVM are synonymous with the AFE20408EVM. This document also includes schematics, the reference printed circuit board (PCB) layouts, and a complete bill of materials (BOM).