Hi Team,
The customer is using TPA3116D2. The attach is his schematic. PVCC and AVCC are both 25V. When the input voltage is less than 5V,
the circuit is fine. But when a 5v~6V voltage signal is input the INPR pin and the INPL pin, the sound starts intermittently, that is sometime there is the sound,
but sometime there is no sound. When there is the sound, the 2 pin and the 3 pin voltage level is 11V. But when there is no sound, the 2 pin and the 3 pin
voltage level is 9.8V.
For the customer's issue, can you provide some suggestions?
Best Wishes,
Mickey Zhang
Asia Customer Support Center
Texas Instruments
