PDM Microphone Background Static Troubleshooting

Job ID: 38981176

Budget: $50 – $0 USD

I'm experiencing background noise from my PDM microphone, which is connected to a codec ADC6140 during recording. I've already attempted to troubleshoot the issue by adjusting the microphone settings, but the problem persists. I need review of the PCB layout to identify the problem

Key requirements:
- Proficient in audio electronics troubleshooting
- Experience with PDM microphones and codecs
- Able to diagnose and resolve analog circuit design

Please provide your approach to diagnosing and fixing this issue in your bid.