[sdiy] DAC via Mux

[Justin Owen]

Hey all,

I want to run the 2 outputs of my TLV5618 dual DAC via a 4052 2 x 4 out Mux but I thought I'd check in here first just to make sure I'm not heading off on completely the wrong path.

Firstly - my plan is to clock the mux via pins on my micro. The sequence would be - inhibit the mux, set the DAC output value then open the correct mux output - and then just keep repeating that. I figured a clean break as the mux was inhibited is better than glitches and crap as the values were re-written. Sound right?

Secondly - I'm wondering about the speed I should be clocking the mux at and if I should be trying to 'sync' that to the write rate of the DAC. As fast as possible? Something based on the speed of something else?

Lastly - I'd appreciate any advice on signal conditioning into or out of the DAC.

The DAC will be outputting various types of CV - i.e. Pitch, Velocity, Envelopes, etc.

Any input would be appreciated.

Cheers - J.