Hello - I have an output issue with a DRV632. Disclaimer: I am a logic designer, not an analog expert. However, I have exactly copied the circuit in the DRV632 EVM app note, down to even using exactly the same caps as spec'd in the schematic. The issue I have is as follows. Driving a quality input audio signal to the DRV632 and using headphones plugged into the output produces excellent quality audio. When I plug any one of a variety of amps or receivers in to the output, the audio gets very low and sounds like it is coming through a telephone, i.e. highly compressed and no fidelity. This is quite the opposite of what I would have expected, as the headphones have a relatively low impedance and the amp/receivers have high impedance. Any suggestions as to where I can look for the source of this problem? Thanks.
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