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RE: "digital switching" density per unit time

"Digital switching? What exactly is that?"

The digital data is converted to analog via transistor switching..... Each sample has switching for each significant bit in the data word, the longer the word length, the more transistors switch on and off for each individual sample.... And the sample rate determines how often each "set" of transistors switch on and off per unit time.

This presumes that no "oversampling" is taking place, which in itself multiplies the digital switching per unit time, along with adding bits to the word length in order to interpolate the data between samples.

Since the digital switching is in essence "square waves," the RF artifacts are generated with each switching action. (This is why all digital audio conversion needs an analog post filter.... A digital filter only reduces the need for the amount of analog filtering.)

The more digital switching taking place per unit time as a function of digital resolution, the greater the RFI generated.... There is just a lot more switching (and RFI from square waves) taking place.

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  • RE: "digital switching" density per unit time - Todd Krieger 07/1/2319:09:22 07/1/23 (0)
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