RFSoC Development Kit Getting Started Guide
Page 25
5.
At this point the RF-DAC is continuously transmitting a 1 MHz CW Tone, digitally mixed with a 1842
MHz carrier to emerge at 1843 MHz from ZCU111 through the TX signal chain of the Qorvo RF front-
end card. The output of the power amplifier is coupled back through the DPD observation path
towards the RF-ADC for signal capture.
Figure 20 – LTE Band-3 downlink and DPD observation signal paths
6.
Return to the main tab and descend into ADC Tile 3. Select ‘Single Capture’ and press ‘Acquire’.
7.
Observe the CW tone which has been mixed back to 1 MHz by the ADC mixer. The signal level is low
because the digital attenuators are still at maximum attenuation.
