SWRA370A September   2011  – December 2025 CC1100 , CC1101 , CC2500 , CC2510 , CC2520 , CC2530 , CC2530-RF4CE , CC2540 , CC2540T , CC2541 , CC2541-Q1

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
    1. 1.1 Acronyms
  5. 2Standards and System Requirements
    1. 2.1 Standards
    2. 2.2 Test Equipment Suppliers
    3. 2.3 Radio Certification URLs
  6. 3Test Equipment Requirements
    1. 3.1 System Setup
      1. 3.1.1 Conducted Test Systems
      2. 3.1.2 Radiated Test Systems
    2. 3.2 Initial Considerations for Testing
    3. 3.3 Testing Reminders
  7. 4Software Setup
    1. 4.1 SmartRF Studio 7
      1. 4.1.1 SmartRF Studio 7 Start-Up Window
      2. 4.1.2 SmartRF Studio 7 Modes
      3. 4.1.3 SmartRF Studio 7 Device Control Panel
      4. 4.1.4 SmartRF Studio 7 Software User Manual
    2. 4.2 SmartRF Studio 8
      1. 4.2.1 SmartRF Studio 8 Start-Up Window
      2. 4.2.2 SmartRF Studio 8 Radio Control Window
      3. 4.2.3 SmartRF Studio 8 Software User Guide
  8. 5DUT and Test Instrument Information
    1. 5.1 DUT
    2. 5.2 Test Instruments
  9. 6Clock Frequency Tuning
    1. 6.1 HF Clock Tuning Utilizing the Internal Cap Array
    2. 6.2 LF Clock Tuning
  10. 7Transmission Tests
    1. 7.1 Transmission Power
    2. 7.2 Power Spectral Density Mask
    3. 7.3 Error Vector Magnitude
    4. 7.4 Transmission Center Frequency Offset
    5. 7.5 Spurious Emissions
  11. 8Receive Testing
    1. 8.1 Receiver Sensitivity
    2. 8.2 Interference Testing
    3. 8.3 Interference Testing with RF Generator
  12.   Appendix A Offset EVM vs. EVM
  13.   B References
  14.   B Revision History

3.2 Initial Considerations for Testing

  • For conducted measurements, the device under test (DUT) is connected to the tester via a 50Ω RF cable with SMA connectors. The LaunchPad comes by default with the RF signal path routed to its PCB antenna. To re-route the signal path to its SMA connector, a capacitor near this connector must be rotated by 90° on the board. This requires de-soldering it from its original position, rotating and re-soldering it in the new position. Consult the LaunchPad user’ s guide for details.
  • For radiated measurements, the device under test (DUT) must be connected to an antenna. Correspondingly, the spectrum analyzer must have an antenna attached to its input. The LaunchPad comes by default with the RF signal path routed to its PCB antenna and therefore does not require any modifications. If an external antenna must be connected to the SMA connector, follow the procedure to rotate the capacitor shown in the previous paragraph. Please note that radiated measurements are typically taken within an anecoic chamber to prevent interference, and signal reflections, which can cause inconsistent or inaccurate readings.
  • For RX testing, the input reference signal (both as the desired signal and the interference signal) should have certain characteristics that must be set according to the respective standards document.
  • Payload content of the desired signal should be a sequence specified by the relevant standard. They must be identical for all transmitted packets.
  • In test cases where an interference signal is used, the interference signal characteristics must be defined by the applicable standards for which the device is being evaluated.