Hello,
I am using the PCM4104 (4-channel Audio DAC) in a design and I have a question about output voltage scaling. There are Vref+ and Vref- pins for each of the 4 output channels. The datasheet states that these pins should be tied to Vcc and Agnd respectively.
However, I would like the output voltage scale to be a bit smaller. Therefore is it possible to set the output voltage scale using Vref+ and Vref-, or does it really only work if those pins are tied to Vcc and Agnd? For example, could I set Vref+ to +4V and Vref- to +1V to limit the output scale to be between those two voltage levels?
Thank you for any help with this!