PCM1794a Pin 20

James White

Prodigy 10 points

What is the purpose of this pin?

It seems rather redundant to have just brought this pin out for the sole purpose

of connecting a resistor to it.

Perhaps something more along the lines of a CCS would be best here?

over 11 years ago

0 Justin Bohr over 11 years ago

TI__Mastermind 27990 points

Hi James,

I will have to dig a little bit to find the full functionality of this pin, I will look into this and get back to you when I get some answers.

Justin

0 Justin Bohr over 11 years ago in reply to Justin Bohr

TI__Mastermind 27990 points

Hi James,

This pin requires a resistor as it will set the bias point for the current output scale. Although you could play with the values of this resistor we do not have test data on different values other than the recommended resistor value, so that is what we recommend be used.

Justin

Audio

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PCM1794a Pin 20