BGS5 connectivity with mic and speaker | Telit Cinterion IoT Developer Community
March 12, 2020 - 5:46am, 1655 views
I want to integrate mic and speaker in my project, I am using BGS5 as a GSM module with ARM cortex M3 as a main processor. So please suggest me some voice codec for BGS5 to communicate with. I want to use two way calling feature in my device. I have searched many codecs some are NAU88C10, SGTL5000, AK2300.
So please help me out to find out Voice/Audio codec.
BGS5 module has digital audio interface which supports PCM master mode, 256kHz clock, long frame with the following features:
• 16 Bit linear
• 8kHz sample rate
• The most significant bit MSB is transferred first
• 125μs frame duration
• Common frame sync signal for transmit and receive
In the documentation there is Nuvoton Codec W681360 mentioned as example.
I have also seen Wolfson Codec WM8944B and Nuvoton Codec NAU8814 mentioned as examples in documentation for other modules (these two also requires I2C interface).
Thank you for response.
But NAU8814 seems to be 24 bit. Is there any other options
We use also NAU8822 in our test hardware. NAU88C10 taht you have mentioned is similar but a bit more limited in features.