A Digital FM Receiver with Arduino (Including 3W+3W Class-D Stereo Amplifier)

RE: A Digital FM Receiver with Arduino (Including 3W+3W Class-D Stereo Amplifier)

DAB — Tue, 24 Nov 2020 22:26:51 GMT

Very interesting project.

Well done.

DAB

RE: A Digital FM Receiver with Arduino (Including 3W+3W Class-D Stereo Amplifier)

colporteur — Tue, 24 Nov 2020 17:11:15 GMT

I mean to be critical. Is this material for Project14 or is this a product placement?

After reviewing the material I did a google search on MyVanitar and discovered a number of kits and the same post on a PCB marketing site.

I feel this is a product, disguised as a project, to slip under the filters of leveraging the site for marketing. If the site has an area for marketing then that is the location for this material.

RE: A Digital FM Receiver with Arduino (Including 3W+3W Class-D Stereo Amplifier)

michaelkellett — Tue, 24 Nov 2020 15:16:34 GMT

There are a couple of mistakes in your design/description:

1) The power amplifier can't drive 3W into each of two speakers with a 10 ohm resistor (R7) in the power supply feed.

2) R4, R5, C11, and C12 are high pass filters (for DC blocking) they will attenuate low frequencies but have no HF filtering effect.

I couldn't tell what the input voltage range is.

RE: A Digital FM Receiver with Arduino (Including 3W+3W Class-D Stereo Amplifier)

dougw — Tue, 24 Nov 2020 14:07:44 GMT

Very nice project. Thanks for posting.