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I would like to mix together a differential signal coming from a PAM8302 (differential amplifier, 2.5W to 4 Ohm load) with a single-ended line level signal
Or by "couple of resistors", did you mean a voltage divider
If I have a voltage divider, do I then need the transformer
For the input to a mono amplifier, I would like to mix together a differential signal coming from a PAM8302 (differential amplifier, 2.5W to 4 Ohm load) with a single-ended line level signal. The differential signal is a continuous series of constant-volue beeps and boops, and the the single-ended is an occasional computer voice. Audio fidelity is almost completely irrelevant, and the volume can be controlled independently for each device.
Just use one end of the differential signal, as you say quality isn't important.
its nothing to do with sound quality,its about not destroying the output stage of the pam 8302 .If you look at the functional diagram you see each of the outputs (vo+ and vo-) can be pulled to either positive or ground,if you ground output vo2 ,whats going to happen when its being pulled positive? even if it dont get upset ,at the same time v+ will also be at ground and the resulting signal will be ?
For the input to a mono amplifier, I would like to mix together a differential signal coming from a PAM8302 (differential amplifier, 2.5W to 4 Ohm load) with a single-ended line level signal.