Hi Team,
The customer is using OPA2348 to drive a 32 ohm speaker. The power for the speaker is 8mW. But OPA2348 can not drive the speaker. The input signal is analog. The
attachment is his schematic. The customer's VCM for OPA2348 is 400mV. The output voltage value for OPA2348 is 32mV.
Currently, the case that the customer encountered is using the general op amp, not the audio op amp, andthe customer can only search for ways to solve this issue instead of changing to audio amp.
Do you have any way to solve the issue?
Best Wishes,
Mickey Zhang
Asia Customer Support Center
Texas Instruments