greatscottgadgets / urti-mainboard

Mainboard of URTI, the Universal Radio Test Instrument
https://greatscottgadgets.com/urti/
CERN Open Hardware Licence Version 2 - Permissive
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Add RX amplifier #7

Open mossmann opened 1 month ago

mossmann commented 1 month ago

See mainboard block diagram: https://github.com/greatscottgadgets/lab-notes/tree/main/project-reports/2023-06-02-urti-progress-report#mainboard-block-diagram

The amplifier could be a single LNA component, similar to the design in HackRF One. Ideally the part should be able to withstand a maximum input power of 20 dBm, though we may be able to limit input power somewhat lower than that (see #8).

We'll likely want to test candidate components to measure performance on our stack-up over our wide range of operating frequencies.

Additionally we need a bypass path and an attenuator path. The attenuator must provide 20 dB attenuation, though the precise requirement may be updated later.