SLOU588 March   2025 TRF1213

 

  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 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 S-Parameter Test Setup
        3. 2.1.2.3 Noise Figure Test Setup
        4. 2.1.2.4 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

2.1.1 General Use

This section provides general use information for the TRF1213EVM. See Section 2.1.2.1 for a general, single-tone setup diagram as a reference point for the following instructions (some components, such as supply bypass capacitors, are omitted for clarity):

  1. Recommended power-up sequence:
    1. Before connecting the power-supply cables to the EVM, set the dc output power supply to 5V.
    2. Set the current limit of the dc output power supply at 250mA.
    3. Ensure that the supply is turned off, and then connect the power supply cables to the J101 connector of the EVM.
    4. Turn on the dc power supply of VCC = 5V. The quiescent current (IQ) drawn from the power supply is 170mA to 180mA.
    5. If the supply current is low, then verify that the device is not disabled by the PD pin, labeled as SDA/TP/EN on J14.
  2. Power-down option:
    1. To power down the device, connect 1.8V to the SDA/TP/EN, or connect a jumper between the PD_VOL and SDA/TP/EN pins on J14 to power down the chip. To enable the device, connect the jumper between the GND and SDA/TP/EN pins on J14.
  3. Single-tone measurement setup recommendation:
    1. Connect an RF signal generator to input SMA connector, J11.
    2. The RF signal generator used must support up to 14GHz signal frequency for testing out the TRF1213EVM.
    3. The TRF1213EVM device input is 50Ω in the pass band. To minimize signal reflections due to impedance mismatch, use an attenuator pad of approximately 3dB to 6dB between the source and J11 SMA input.
    4. The EVM outputs are fully differential (or 180° out of phase) at J10 and J12 SMA connectors. The TRF1213EVM device has low output impedance at dc and low frequencies.
    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. To minimize reflections, use an attenuator pad approximately 3dB to 6dB at the three terminals of the passive balun.
    6. Lastly, properly characterize and account for the insertion loss of RF coaxial (coax) cables, attenuator pads, and passive baluns to measure accurate gain and power levels for the device.
  4. Matching considerations:
    1. The TRF1213 is a wideband amplifier and expects 50Ω input matching over the operating bandwidth up to approximately 14GHz. For more information, see the TRF1213 Near-DC to > 14GHz, 3dB-Bandwidth, Single-Ended-to-Differential RF Amplifier data sheet.