Some differential audio mux questions

Re: #1, I could extrapolate a schemo from any example where an encoder controls one mux through a portion of its travel, and another mux through another portion of its travel. I just don’t want to go in an over complicated direction straight off the bat.

A helpful suggestion, hopefully: It looks like the data sheet would be more user-friendly for audio if the data in Figure 24 were captured at 600Ω and 10KΩ, and included a 30Vpp trace. 100Ω load is a great worst-case reference but not so relevant in everyday use -- nobody's trying to put an analog switch between a discrete op amp and a step-up output transformer. Similarly, the crosstalk and off-isolation data of Figures 20-22 would be meaningful with a test circuit into 600Ω and 10KΩ, and in that case a 100kHz trace bandwidth would be just fine.

Hi,

Thanks for your inquiry, I will look into this and get back to you asap.

David

I did figure out the flow, it is essentially this chicken scratch. It would be very helpful to see THD+N into 600 and 10K, and know the point on dual 15V supply where the THD takes off towards the heavens. It’s somewhere above 25Vpp, right? Say audio on the data sheet and these are the natural questions that arise. My application puts the differential drains into 100K fwiw, but there are other situations in which 10K is expected. And in the case of potentially using the 1411/12/13 for relay replacement type applications, standard audio loads and behavior into those are key data points.