Tool/software:
The issue was re-tested this afternoon and traced to the fiber-optic receiver socket. After replacing the fiber receiver (U14/OPTO-IN), the system now functions normally.Please close the issue. Thank you!
Hi everyone,
I encountered an issue with the TAS5828M.
When operating the TAS5828M demo board at a 192 kHz sample rate, numerous spurious signals begin to appear on the waveform after about 10 minutes of runtime. As the test duration increases, the spurs grow in number and amplitude. Switching the sample rate to 96 kHz or 48 kHz eliminates these spurs; restoring 192kHz immediately brings them back.
Test conditions
- Supply voltage: 20 V DC
- Test frequency: 100 Hz
- Output power: 2 × 40 W
- Load: 4 Ω
Attachments provided:
1. Waveform captured from the analyzer
2. TAS5828M register/configuration screenshot
3. Demo-board hardware-setup photo
Thanks in advance!
