SLAU891A March   2023  – July 2024 TRF0208-SEP

 

  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
  6. 2Hardware
    1. 2.1 General Usage Information
  7. 3Implementation Results
    1. 3.1 Test Setup Diagrams
      1. 3.1.1 S-Parameter Test Setup
      2. 3.1.2 Noise Figure Test Setup
      3. 3.1.3 Two-Tone OIP3 Test Setup
  8. 4Hardware Design Files
    1. 4.1 Schematic
    2. 4.2 PCB Layers
      1. 4.2.1 Stack-Up and Material
    3. 4.3 TRF0208SEP/SP EVM Bill of Materials
  9. 5Additional Information
    1.     Trademarks
  10. 6Related Documentation
  11. 7Revision History

3.1.1 S-Parameter Test Setup

TRF0208SEP, TRF0208SP S-Parameter Test SetupFigure 3-1 S-Parameter Test Setup

Use the following guidelines for S-parameter measurement:

  1. As Figure 4-1 shows, the S-parameter measurement is typically done using a Vector Network Analyzer (VNA). For measuring the TRF0208SEP/SP EVM, a 3-port VNA is recommended which can generate single-ended and receive differential signals at the input and output ports of EVM respectively.
  2. Before connecting the RF coax cables to the EVM, you must calibrate the VNA along with the cables using a calibration kit.
  3. Make sure the frequency sweep and output power level from the VNA is set within the linear operating range of the TRF0208SEP/SP devices. The resolution bandwidth (RBW) and dynamic range of the VNA can be adjusted to give optimum sweep time for the measurement.
  4. Note the importance to account for board trace losses at the input and output side of the device during gain measurements. Figure 4-2 shows the typical input and output trace losses measured on the EVM.
TRF0208SEP, TRF0208SP PCB Trace Loss vs FrequencyFigure 3-2 PCB Trace Loss vs Frequency