Programmable Devices
CPLDs, FPGAs, SoC FPGAs, Configuration, and Transceivers

Wm8731

Altera_Forum
Honored Contributor II
1,603 Views

Hello people, 

Is there anyone who has experience working with WM8731 on DE2 board. 

I want to know the following: 

Is there any possibility to use WM8731 as a ADC(Analog to Digital Converter)? 

I have analog signal and I need to do ADC conversion with DE2 board. 

Thank you very much for your time and effort. 

Bojan:)
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Altera_Forum
Honored Contributor II
792 Views

It's designed for AC operation and doesn't have a DC accuracy as known from instrumentation and measurement ADC. Automatic zero restore can possibly be used to improve it's behaviour in a measurement application.

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Altera_Forum
Honored Contributor II
792 Views

Does it means that I could use WM8731 for my own application like A/D converter? 

The signal that I want to convert is DC signal within a range [0 to 1.4 V].  

All the best. 

Bojan
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Altera_Forum
Honored Contributor II
792 Views

The signal has to be DC-shifted to WM8731 input range. At a DE2 board, you must short the line input AC coupling.

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Altera_Forum
Honored Contributor II
792 Views

it's the firt time i use DE2 kit,i written some code for LCD,switch,LED.but i want to generate a music by read from SDRAM.i can't understand WM8731.everyone can explain funtion of wm8731 for sound. thank you so much !

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