Analog Discovery Audio output

[jfdo]

Hi,

May I know what is the maximum output current and voltage of the Audio output of the Analog Discovery? 

And maximum Output power?

If I set the WaveGen to 3V output, what would be the out of the Audio output?

Thank you.

[attila]

Hi @jfdo

The audio outputs have 33R PTC output:
https://digilent.com/reference/test-and-measurement/analog-discovery-2/hardware-design-guide#audio

The open output voltage of audio is about /5.5 of the awg output.

 

In the Wavegen you can specify the output amplification, like to work with audio output voltage for 1/5.5 you can set 0.1818

[jfdo]

Hi Attila,

Thank you for the Answer.

I can see can set the WaveGen Amplification to 0.01 to 100. 

Is this the voltage amplification? or both current and voltage?

What does 33R PTC mean?

Thanks 

[jfdo]

Hi @ Attila,

Does 33R PTC mean 33 Ohms Positive Temperature Coefficient?

[attila]

Hi @jfdo

Yes.
Here you can find the audio output output stage:

On 2/27/2023 at 9:20 AM, attila said:

https://digilent.com/reference/test-and-measurement/analog-discovery-2/hardware-design-guide#audio

 

[jfdo]

Hi @ Attila,

Thank you.

So, the audio output is a voltage amplifier? 

Would it amplify the current too? or only the voltage?

[attila]

Hi @jfdo

The output is voltage, the current depends on the load.