TPA3244: How to shut down TPA3244?

Nic,

Robert and Alix will follow up your question about TPA3244 issue later.

Rdgs,
Matthew

Do you mean that if reset keeps low, the device will keep in low power mode?

Thanks Robert. One question, will it still have sound when in low power mode? This is to avoid pop noise. We need to shut down the deivce first and then power on.

Hi Nic,

Good question. If I recall there should be less pop when going turning on the device in low power mode then going to normal operation mode. Though there will still be some pop in the system.

Regards,
Robert Clifton

Oh too bad, any other walk around to improve this?

Hi Nic,

Well you actually have a couple of options. The first option is getting lower tolerance inductors and capacitors on the LC filter. The closer they match the less of a DC offset during startup and shutdown.

The TPA3221 has lower pop than the TPA3245.

Regards,
Robert Clifton