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UG-1951
PERFORMING EVALUATION
ADMV8052-EVALZ QUICK START
To set up the ADMV8052-EVALZ, take the following steps:
1.
Connect the RF1 and RF2 ports to a network analyzer (or a
similar instrument). Typically, RF1 and RF2 are connected
to Port 1 and Port 2 on the network analyzer, as shown in
Figure 2.
2.
Connect the
SDP-S
to the 120-pin connector on the
ADMV8052-EVALZ. Do not connect the SDP-S to the PC
until after completing Step 3 or Step 4.
3.
On the ADMV8052-EVALZ, slide the S1 switch down (as
shown in Figure 2) to power the ADMV8052-EVALZ from
the 5 V USB supply voltage from the PC via the SDP-S.
4.
Alternatively to Step 3, slide the S1 switch up and connect
the power supplies to the VPOS and VNEG ports. The
applicable voltage range for VPOS is between +3.5 V and
+5.5 V and for VNEG is between −5.5 V and −2.7 V. The
external supply current limits must be set to 20 mA.
Expected supply current drawn for VPOS is 12 mA to 14 mA
and for VNEG is 2 mA to 3 mA. The ADMV8052 chip
current drawn per supply pin is typically 10s of microamps
or less. Most of the current drawn from the ADMV8052-
EVALZ comes from the LDO regulators and the status
indicator light emitting diodes (LEDs), DS1 to DS3.
5.
Connect a USB cable between the PC and the SDP-S.
6.
Open the
ACE
software. The ADMV8052 Board appears
in the Attached Hardware section of the Start tab.
Double-click the ADMV8052 Board plug-in to open two
tabs, one is the ADMV8052 Board plug-in view and one is
the ADMV8052 chip plug-in.
Use the CONFIGURATION section (see Figure 10) in the
7.
ACE software to initialize the chip. By default, the
ADMV8052_Register_Load_BW9.csv file is loaded into
this section. Click Apply to send the default settings to the
chip and to allow the main diagram user controls to
become editable.
NETWORK ANALYZER SETTINGS
When evaluating the ADMV8052-EVALZ, a good starting point
for configuring the network analyzer is as follows:
•
Start frequency = 0.01 GHz
•
Start frequency = 1.01 GHz
•
Number of points = 1001
•
Step size = 1 MHz
•
Power level = −10 dBm
•
Measure types = S-parameters (S21, S11, and S22)
•
Format = log magnitude (S21), smith charts (S11 and S22)
•
Calibration = full 2-port
Figure 10. ADMV8052 CONFIGURATION Section
CSV FILES
By default, the ADMV8052_Register_Load_BW9.csv file is
loaded into the CONFIGURATION section. This file contains
interpolation coefficients that correspond to approximately 9%
bandwidth. There are two additional .csv files provided that
contain interpolation coefficients for 7% and 11% bandwidth,
respectively. To load a different .csv file in the CONFIGURATION
section, take the following steps:
If the Modify button is visible, click to allow changes.
1.
2.
Click Restore Software Defaults to zero out the
CONFIGURATION section.
Click the ... button next to Load Settings from CSV to
3.
select which .csv file to load (see Figure 10).
4.
Select the Check to Load Settings check box to load the .csv
file contents into the CONFIGURATION section. Note that a
check mark does not appear when the check box is selected.
5.
Click Apply to send out the settings to the hardware.
Rev. 0 | Page 10 of 18
EVAL-ADMV8052
User Guide
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