I'm currently getting a setup together for building and testing audio circuits (synth modules). So I've got PSU, scope and function generator. I thought it would be nice to actually hear what's going on. To this end I bought a bluetooth speaker (with 3.5" audio input socket).
Now I'm not sure what the input impedence is, and what voltage range the amplifier expects. I would expect to be working with waveforms maybe up to +/- 5V peak to peak, with a possible offset if I connected the function generator to the bluetooth speaker.
I presume that I'd need to add a small capacitor to decouple any dc component going into the amplifier. I'm not sure what I need to do so that the amplifier doesn't get overdriven or damaged by too large an input. A simple resistor, a voltage divider, or some other attenuator of some sort ?
Now I'm not sure what the input impedence is, and what voltage range the amplifier expects. I would expect to be working with waveforms maybe up to +/- 5V peak to peak, with a possible offset if I connected the function generator to the bluetooth speaker.
I presume that I'd need to add a small capacitor to decouple any dc component going into the amplifier. I'm not sure what I need to do so that the amplifier doesn't get overdriven or damaged by too large an input. A simple resistor, a voltage divider, or some other attenuator of some sort ?