UG-1283
User Guide
Rev. A | Page 16 of 24
Rx CONTROL TAB
The
Rx Control
tab (see Figure
) allows setting the gain and
phase of each of the four receive channels.
To use the
Rx Control
tab, take the following steps:
1.
Click
Rx Initalise
.
2.
Select the
Attenuation
check box for each channel to add
or remove the 15 dB step attenuation.
3.
Adjust the
Gain Index
and
Phase Angle (°)
settings of
each channel using the corresponding dropdown menus.
4.
When adjustments are made, click
Load All
to write the
settings to the device registers.
RX REGISTERS TAB
The
RX Registers
tab provides control for all receive function
registers in the device (see Figure 31).
In the
Rx Gain Control
section, set the gain register for each
receive channel.
In the
Rx Phase Control
section, set the
I
and
Q
gain registers
for each channel in the corresponding VM.
In the
Memory Index
section, if the
SPI Ctrl
check box is selected,
the beam position settings for the corresponding channel are
recalled from memory into the channel work registers according to
the value (the memory address) in the
RX CH1 RAM INDEX
to
RX CH4 RAM INDEX
field for each channel. If the
SPI Ctrl
check box under
RX CHX RAM INDEX
is selected, data for all
four channels are pulled according to the value in the
RX CHX
RAM INDEX
field.
In the
Bias Current
section, choose a bias setting for each of the
three receive stages (the settings are common to all four receive
channels).
Click
Write Gain Values
,
Write Phase Values
, and
Write
Memory Values
to send the corresponding register setting to
the ADAR1000-EVALZ.
16
788
-0
08
Figure 30.
Rx Control
Tab
16
78
8-
00
9
Figure 31.
RX Registers
Tab
