Why does ESP32-LyraT-Mini V1.2 use an external ADC for the microphone when ADC is already available in Audio Codec?

Post Reply
El3ctroniks
Posts: 2
Joined: Wed Jul 19, 2023 5:23 pm

Why does ESP32-LyraT-Mini V1.2 use an external ADC for the microphone when ADC is already available in Audio Codec?

Postby El3ctroniks » Mon Feb 12, 2024 4:08 pm

Kindly refer to ES8311 audio codec datasheet and ESP32-LyraT-Mini V1.2 hardware reference. In the Lyra, an external ADC ES7243 is used to sample the audio signal from the microphone but an equally capable ADC is avaiable in the ES8311 codec ic, why does Espressif use the external ADC?
Attachments
WhatsApp Image 2024-02-12 at 9.36.20 PM.jpeg
lyra t mini board system block diagram
WhatsApp Image 2024-02-12 at 9.36.20 PM.jpeg (103.04 KiB) Viewed 415 times
Top
markevens
Posts: 38
Joined: Sat Aug 01, 2020 6:31 am

Re: Why does ESP32-LyraT-Mini V1.2 use an external ADC for the microphone when ADC is already available in Audio Codec?

Postby markevens » Sun Mar 03, 2024 3:14 am

Same confusion I am also facing. Is anyone know?
Top
Post Reply

Return to “Hardware”

Who is online

Users browsing this forum: hdsjulian2 and 136 guests