This section provides general usage information for the TRF0206-SP EVM. Figure 1-1 shows 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. Set the DC output power supply to +3.3 V before connecting the power-supply cables to the EVM.
   2. Set the current limit of the DC output power supply at 250 mA.
   3. Turn off the supply, then connect the power supply cables to the J1 connector of the EVM.
   4. Turn on the DC power supply of VCC = +3.3 V now. The supply current (I_Q) drawn from the power supply is approximately 135 mA.
   5. If the supply current is low, then check the device is not disabled by the PD pin.
2. Power-down option:
   1. Connect +1.8 V (logic-1) on the PD pin to power-down the chip. Ground the PD pin to enable the chip.
3. Single-tone measurement setup recommendation:
   1. Connect an RF signal generator to input SMA connector, J4.
      As shown in Figure 1-1, use an RF band pass filter when measuring single tone distortion.
   2. The RF signal generator used must support up to 12-GHz signal frequency for testing the TRF0206-SP EVM.
   3. The TRF0206-SP device input is 50-Ω in the pass-band.
      To minimize signal reflections due to impedance mismatch, TI recommends using an attenuator pad of approximately 3-dB to 6-dB between the source and J4 SMA input.
   4. The EVM outputs are fully differential (or 180° out-of-phase) at J5 and J6 SMA connectors.
      The TRF0206-SP device has low output impedance at DC and low frequencies.
   5. When connecting to a spectrum analyzer, the differential signal out of the EVM is converted to a single-ended signal using an external passive balun as shown in Figure 1-1.
      Usage of an attenuator pad of approximately 3-dB to 6-dB is recommended at the three terminals of the passive balun to minimize reflections.
   6. Lastly, it is recommended to 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. TRF0206-SP is a wide-band amplifier and it receives 50-Ω input matching over its operating bandwidth up to about 7 GHz. A signal generator or noise source that drives this EVM can have 50-Ω impedance over a wideband width. But, if this EVM is driven by a narrow-band driver or a source that has non 50-Ω matching, then there may be instability issues with the amplifier. To avoid such issues, additional matching may be required at the input. For more information, see the TRF0206-SP Single Channel, 10 MHz to 6.5 GHz 3-dB BW, ADC Driver Amplifier data sheet.
   2. As mentioned earlier, the TRF0206-SP device has low output impedance, and zero-ohm series resistors are used in the EVM. When the EVM outputs are connected to a balun, it is recommended to use attenuator pads to minimize reflections.