Analog Devices ADRV9005 Reference Manual page 338

Reference Manual
ADRV9001 EVALUATION SYSTEM
TX supports I/Q, I/Q FM/FSK, direct FM/FSK types.
►
Frequency Deviation
►
This option is available only for the TX FM type setups.
►
Enable ORx1 and ORx2 for IQ input.
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Interface Rate allows to select the rate for the interface. Use this to over or under sample from the sample rate. Provide own PFIR to account
►
for this.
There is a traffic light indicator that checks the selected settings and indicates they are acceptable or not.
The Board Configuration tab has settings for the transmitter External Loopback typically used for DPD-type applications. Enable or disable
the external loopback after power amplifier. If it is enabled, enter the expected loopback peak power in the Peak Power entry. Default peak
power is −18 dBm. These are associated with RX1/2B ports.
Measure the external loopback path using an API, sending a low-level wideband signal in the datapath for delay measurement. This
action disrupts the transmit signal in the air. Do this in a test environment and before the power amplifier is transmitting real data. Use
the adi_adrv9001_cals_ExternalPathDelay_Calibrate() and adi_adrv9001_cals_ExternalPathDelay_Get() to retrieve the external loopback
path delay in "ns". The SDK has an IronPython example of this. For details, see the
measurement, there is a limitation with the external delay measurement used by the DPD.
1. Measure the LTE10 profiles to obtain the highest possible measurement accuracy.
2. Measure upon ADRV9001 entering the CALIBRATED state for the first time.
Obtain SSI Ref Clock from the transmitter or receiver channel. When using the clock from the transmitter channel, push this to two GPIO pins.
Using the receiver SSI clock releases these two pins for other uses.
Use External LNA to control the analog output from the GPIOs to control the gain of the system LNA. The pin settings currently are locked to
one nibble. Filling in the LNA gain steps allows the API functions to calculate the extra gain table settings. View this in the Gain Control tab
after programming the part.
Extend the gain table with gain settings that include the user-defined LNA configuration. The "Extended Gain Control" column specifies the
control word for the LNA. and this is shown with colored backgrounds. The "Duplicates" column shows the row number from the table copied
and appended with the "External Gain Control" word to get the desired gain.
the external gain control changed.
analog.com
Figure 319. Device Configuration Tab
IronPython Scripting
Figure 321
section. Note that for this
shows that the top row is a copy of row 196 with just
ADRV9001
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