2 adicional ADC input's for ADAU1701 and 3 different filter selection
Hello,
kind like to know the simplest way to have 2 more ADC inputs on the ADAU1701. And how could I configure 3 different filters and recall it over push-buttons when running in self-boot mode.
Ex.:
Filter 1 - 2nd. order hi/low pass 20Hz - 200 Hz;
Filter 2 - 2nd. order hi/low pass 200Hz - 2000 Hz;
Filter 3 - 2nd. order hi/low pass 2000Hz - 20000 Hz
Regards,
Celso
Audio Signal Processors
SigmaDSP Audio Processors
adau1701
Thank you JeradL
You can connect an external ADC, such as the AD1871, or codec like the ADAU1361 to the serial ports on the ADAU1701 to extend the analog I/O beyond the on-board converters.
There are example projects included with the installation of SigmaStudio. You can find these in the folder C:\Program Files\Analog Devices Inc\SigmaStudio 3.1\Sample Schematics\ADAU170x\GPIO Examples. The example IndexLPFSelect_SinglePushButton_170x.dspproj shows how you can use a push button to select different signal processing paths, such as different filters.
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