Other Parts Discussed in Thread: TLV320AIC3109-Q1, TAC5311-Q1
Tool/software:
Could you please help confirm if the TAC5412-Q1 circuit design is correct?
Here is the background of our development:
- We originally planned to use the TAC5311-Q, but due to supply issues, we ended up using the TAC5412-Q1.
- The TAC5412-Q1 samples have been completed, but we noticed significant noise when playing music, although the music content can still be faintly heard.
We conducted the following experiments:
1. We input the signal generated by the previous version of the TLV320AIC3109-Q1 into the AMP on the currently faulty PCBA, and the sound was normal, so we ruled out any issues with the AMP circuit.
2. We fed the I2S signal from the new PCBA into the original TAC5412-Q1 EVM, and the audio was normal, so we ruled out any issues with the I2S signal from the NDA.
3. We input the I2S signal from the old NDA into the current TAC5412-Q1 and played the sound through the AMP on the new PCBA, and the sound was abnormal, so we suspected the TAC5412-Q1 on the new PCBA might be faulty.
4. We combined the NDA and TAC5412-Q1 on the new PCBA with the AMP from the old PCBA, and the sound was still abnormal, further indicating that the issue might be with the TAC5412-Q1 on the new PCBA.
We have compared our design with the TAC5412-Q1 EVM Kit and found them to be identical.
Could you advise if the circuit design can be shared between the TAC5311-Q1 and TAC5412-Q1? Based on your experience, what direction should we explore to troubleshoot the significant noise issue? Are there any specific layout considerations for the TAC5412-Q1 that we should be aware of?
