Consultation on the application of nRF52832 in audio

[helen]

Hi,

We currently have a project that uses nRF52832 in audio. There are currently two questions that need to be confirmed.

first question:

Because other chips on the board are powered by 1.8V. And the voltage range of nRF52832 chip is 1.7V to 3.6V according to the manual, does it mean that the VDD pin of nRF52832 can work stably with 1.8V power supply, and can guarantee the stability of the product when it is shipped in batches.

second question:

Since it is used to transmit voice coded data, can the retransmission mechanism in the protocol stack be turned off?

And whether the verification in the figure can be turned off, regardless of whether the data is successfully verified. The original data must be given to the application layer.

[Edvin]

Hello,

If the nRF is provided with a steady 1.8v, then that is sufficient, yes.

 

Since it is used to transmit voice coded data, can the retransmission mechanism in the protocol stack be turned off?

 No, not currently.

Bluetooth is working on the Bluetooth Low Energy specification on Audio over BLE (which is not yet done, as far as I know). 

Using BLE as it is now (at least until the audio over BLE specification is decided and implemented) it is not possible to turn off retransmissions or CRC checks. This is the reason that headsets these days still use Bluetooth Classic.

Best regards,

Edvin