SBOU257 June   2021 PGA2500

 

  1.   Trademarks
  2. 1Product Overview
  3. 2Features
  4. 3Getting Started
    1. 3.1 Electrostatic Discharge Warning
    2. 3.2 Unpacking the EVM
    3. 3.3 Absolute Operating Conditions Warning
  5. 4Setup Guide
    1. 4.1 Analog and Digital Power Supplies
    2. 4.2 Microphone Input
    3. 4.3 Phantom Power Connections
    4. 4.4 DC Blocking Capacitors
    5. 4.5 Protection Network
    6. 4.6 Configurable Input Circuitry
    7. 4.7 Configurable Output Circuitry and Preamp Output Connector
  6. 5Schematic, PCB Layout, and Bill of Materials
    1. 5.1 Schematic
    2. 5.2 PCB Layout
    3. 5.3 Bill of Materials
  7. 6Software Operation
    1. 6.1 Applications Software Overview
    2. 6.2 Using the GUI

4.6 Configurable Input Circuitry

The configurable portion of the input circuit includes R5, R6, R8, R13, R15, R16, Cc1, and Cc2. These components support prototyping of additional circuitry, such as pads and filters. During assembly at the factory, resistors R8 and R13 are not installed, while R5, R6, R15, R16, Cc1, and Cc2 are replaced by 0-Ω shunt resistors.