hi,
TPA3005d2 is used in my application, I have some questions when I test it. (see the attachment test data)
My questions:
- Because TPA3005d2 load impedance should be more than 6 ohm, piezoelectric speaker is capacitance load, is it OK in my application?
- When the output bias voltage is dropped from 6 VDC to 0V, the output is disable, but the SHUTDOWN_N PIN is still high. Why?
- How much about the SHUTDOWN_N pin input impendence? I used R8 121kohm, is it OK?(I refer to TPA3005D2EVM board)
Best regards,
Yang Zhenglin