SLVUDX6 June   2026

 

  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 Setup
      1. 2.1.1 General Use
      2. 2.1.2 Test Setup Diagrams
        1. 2.1.2.1 Gain and OP1dB Test Setup
        2. 2.1.2.2 Noise Figure Test Setup
        3. 2.1.2.3 Two-Tone OIP3 Test Setup
  9. 3Hardware Design Files
    1. 3.1 Schematic
    2. 3.2 PCB Layout
      1. 3.2.1 Stack-Up and Material
    3. 3.3 Bill of Materials (BOM)
  10. 4Additional Information
    1.     Trademarks
  11. 5Related Documentation

2.1.2.1 Gain and OP1dB Test Setup

TRF1218EVM Gain and OP1dB Test Setup Figure 2-1 Gain and OP1dB Test Setup

Single-tone measurement setup recommendation:

  1. Connect an RF signal generator to input 2.92mm RF connector, J1.
  2. The RF signal generator used must support >20GHz signal frequency for testing out the TRF1218EVM.
  3. The TRF1218EVM device input is 50Ω in the pass band.
  4. The EVM outputs are fully differential (or 180° out of phase) at J2 and J3 2.92mm RF connectors. The TRF1218EVM has 100Ω differential matched output impedance. A pi resistive network(R1,R2,R3,R4) is used to convert 50Ω output differential impedance of TRF1218 to 100Ω differential.

  5. When connecting to a spectrum analyzer, the differential signal out of the EVM must be converted to a single-ended signal using an external passive balun as shown in Section 2.1.2.1.

  6. Lastly, properly characterize and account for the insertion loss of RF coaxial (coax) cables, 50Ω to 100Ω matching loss (9.6dB), and passive balun to measure accurate gain and power levels for the device.