Test Procedure - Analog Devices ADAR1000-EVALZ User Manual

UG-1283

TEST PROCEDURE

To use the ADAR1000-EVALZ evaluation board, take the
following steps:
1. Plug the SDP adapter into the P5 connector on the
ADAR1000-EVALZ evaluation board.
2. Connect the +3.3 V and −5 V power supplies to the
corresponding banana jacks on the ADAR1000-EVALZ
evaluation board.
3. Connect the SDP adapter through a USB cable to the PC
with the evaluation software.
4. Connect one port of the network analyzer to the RF_IO
connector and another port to the RX1 input connector.
5. Use the Start menu to run the
software (see the Evaluation Board Software Installation
section for more information), as shown in Figure 6.
Figure 6. Run Control Software from the Start Menu
6. Once the ADAR1000 evaluation software starts up, click
the Connection tab and then click Connect.
7. Ensure that SDP board connected appears on the status bar.
8. Use the File dropdown menu to select Load Configuration,
and load the ADAR1000_software_settings_v0.1.0.txt file
to initialize all program settings.
ADAR1000 evaluation
Rev. 0 | Page 8 of 18
ADAR1000-EVALZ
9. Select the Manual Register Write tab, and click Use Input
File to select the RX1_MaxG_45.txt file for the register
values.
10. Click Write All to send the register values to the ADAR1000.
Receive Channel 1 is now turned on at full gain.
11. Measure the gain and return loss on the network analyzer. A
typical response is shown in Figure 7.
20
MEASURED GAIN
RX1 RETURN LOSS
15 RF_IO RETURN LOSS
10
5
0
–5
–10
–15
–20
6 7 8 9 10
FREQUENCY (GHz)
Figure 7. Receive Mode Gain and Return Loss Measurement Results
12. For transmit mode operation, disconnect the RX1 port and
connect the RX1 port to the TX1 output connector.
13. Click the T/R Control tab, under the TX Enable section,
select CH1 TX EN, TX DRV EN, TX VM EN, and TX
VGA EN, and then click Write Enable Values to load the
settings.
14. In the Switch Control section of the T/R Control tab,
select TX EN and TR SPI, and then click Write Switch
Values to load settings.
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