SWAU130A March   2023  – December 2023

 

  1.   1
  2.   Description
  3.   Features
  4.   4
  5. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specification
    4. 1.4 Device Information
  6. 2Hardware
    1. 2.1 Hardware Features
    2. 2.2 Connector and Jumper Descriptions
      1. 2.2.1 LED Indicators
      2. 2.2.2 Jumper Settings
      3. 2.2.3 BoosterPack Header Assignment
      4. 2.2.4 JTAG Headers
    3. 2.3 Power
      1. 2.3.1 Measure the CC3301 Current Draw
        1. 2.3.1.1 Low Current Measurement (LPDS)
        2. 2.3.1.2 Active Current Measurement
    4. 2.4 Clocking
    5. 2.5 Performing Conducted Testing
  7. 3Implementation Results
    1. 3.1 Evaluation Setups
      1. 3.1.1 MCU and RTOS
      2. 3.1.2 Processor and Linux
      3. 3.1.3 Standalone RF Testing
        1. 3.1.3.1 Radio Tool BP-CC3301 Hardware Setup
  8. 4Hardware Design Files
    1. 4.1 Schematics
    2. 4.2 PCB Layouts
    3. 4.3 Bill of Materials (BOM)
  9. 5Additional Information
    1. 5.1 Trademarks
  10. 6Revision History

2.3.1.2 Active Current Measurement

To measure active current in a profile form, TI recommends using a 0.1-Ω 1% 0603 resistor on the board, and measuring the differential voltage across the resistor. This can be done using a voltmeter or an oscilloscope for measuring the current profile for both power supplies (3.3 V or 1.8 V).

Jumper J15 shunt is removed and a 0.01 resistor is populated in parallel to measure the active currents on the 1.8V supply (see Figure 2-8). Similar operation with J16 and 3.3V supply.

GUID-20231208-SS0I-R158-W2PF-R109JTW5KM1Q-low.svg Figure 2-7 Active Current Measurement