Audio Codec | Telit Cinterion IoT Developer Community
February 9, 2018 - 11:50am, 2063 views
I have got a EHS6/8/ELS61
Are there by any chance the possibility, that You can come up with a solution, how to implement an audio codec proposals.
Show a solution with a codec AK2300, but I can not find any documentation about this.
Most EVA-board has a usb interface, but this does not help?
Could you please specify what information you are missing in the referred article? I can see there schematics, pictures, descriptions how to connect and how to configure the module, MIDlet application for configuration.
If you have the evaluation board instead of terminal you probably have some developer board on which the module is placed. So you could see check the documentation for this developer board to find the proper lines and check the electrical characteristics. Some additional hardware might be needed in between like level shifters.
In the Hardware Interface Description documents for these modules you will also find electrical characteristics of the needed inputs/outputs and advices with some schematics for designing the DAI/PCM circuit.
For designing your own board you could also check the example schematics here: https://iot-developer.thalesgroup.com/documentation/example-schematic-eh...
Additionally you will find on these schematics that EHS6-A variant has analog audio interface.
Meanwhile there is a schematic on the page you are referring to.
On top of that we have some more detailed information on audio codecs in our recent HW device specs e.g. for EHS6/ELS61 (mid of 2018). Please try to get one of those.