Other Parts Discussed in Thread: PCM5121,
Please tell me the possible causes and what to check.
I have configured an audio circuit with PCM5121 and TPA3138D2, but no audio is output.
The output is single-ended.
The circuit is almost as per the data sheet.
■ Situation
-When playing an mp3 file with the aplay command, a loud noise is generated from the speaker.
-The loudness of the noise does not change even if the GAIN_SEL pin setting of TPA3138D2 is changed.
-When playing a wav file, there is no sound or noise.