Test Procedure - Analog Devices ADRF5549-EVALZ User Manual

ADRF5549-EVALZ

TEST PROCEDURE

The ADRF5549-EVALZ evaluation board ships fully assembled
and tested. Figure 3 provides a basic test setup diagram. Perform
the following steps to complete the test setup and verify the
operation of the ADRF5549-EVALZ evaluation board:
1. Connect the GND1 test point to the ground terminal of the
power supply.
2. Connect the VDD1_A, VDD2_A, and SWVDDB test
points to the voltage output terminal of the power supply.
3. Connect the BP_A, BP_B, PD, and SWCTRL test points to
the ground terminal of the power supply for high gain
receive operation.
4. Connect a signal generator to the ANT_A SMA connector.
Set the signal generator to a −30 dBm output power at
2.3 GHz.
5. Connect a spectrum analyzer to the RxO_A SMA
connector. Set the spectrum analyzer to a 2.3 GHz center
frequency and the reference power level at 10 dBm.
6. Connect 50 Ω loads to the TERM_A, ANT_B, RxO_B, and
TERM_B SMA connectors.
7. Turn on the 5 V supply that sources a current of
approximately 180 mA.
8. Turn on the RF signal generator. The spectrum analyzer
displays a tone of approximately 3 dBm at 2.3 GHz so that
Channel A of the ADRF5549-EVALZ evaluation board has
a receive gain of 33 dB.
9. Turn off the RF signal generator and then the power
supply.
10. To repeat the test on Channel B, connect the test equipment
to the ANT_B and RxO_B SMA connectors in Step 4 and
Step 5 and connect 50 Ω loads to the TERM_A, TERM_B,
ANT_A, and RxO_A SMA connectors in Step 6.
User Guide
Additional test equipment is required to fully evaluate the
device functions and performance.
The ADRF5549
connecting the control test points to 5 V or ground. Use a
separate power supply to evaluate the control input functions.
Use a network analyzer to evaluate the receive gain, transmit
insertion loss and isolation, RF input and output return losses,
and channel to channel isolation.
For noise figure evaluation, use either a noise figure analyzer or
a spectrum analyzer with a noise option. The use of a low excess
noise ratio (ENR) noise source is recommended.
For third-order intercept point evaluation, use two signal
generators and a spectrum analyzer. A high isolation power
combiner is recommended.
For power compression and power handling evaluations, use a
2-channel power meter and a signal generator. A power
amplifier with an output power rating of >200 W is
recommended at the input. Test accessories such as couplers
and attenuators must have sufficient power handling.
The ADRF5549-EVALZ comes with a support plate attached to
the bottom side. To ensure maximum heat dissipation and to
reduce thermal rise on the evaluation board during high power
evaluations, attach the support plate to a heat sink using
thermal grease.
Note that the measurements performed at the SMA connectors
of the ADRF5549-EVALZ include the losses of the SMA
connectors and the PCB. The thru line must be measured to
calibrate out the board effects. The thru line is the summation
of an RF input line and an RF output line that are connected to
the device and equal in length.
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can be configured in different modes by
UG-1676