Encoder + Frequency Modifier Idea

[dk]

Hello all,

I had an idea that I haven't come across here before, and thought I'd share with the class. I don't have the ability to breadboard it, but perhaps someone will chip in who understands things a bit deeper than I do to say whether it's utter bollocks or possibly a decent idea?

The thought occurred to me while drooling over frequency shifters and the like on youtube (as do most good ideas), that we could take our beloved 4089's and feed them a shifting binary code dependent on a CV or analog source. I thought of making a simple ADC feeding a priority encoder, which in turn would feed the 4089. Theoretically, you could stick pretty much any type of waveform or CV into it, and it doesn't have to exclusively feed a 4089... it could be anything with a binary input.

I made a quick block diagram below.

Any thoughts? A simpler way of doing this? Or maybe it's not worth the trouble?

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[PHOBoS]

Thanks for sharing

yep, that should work.

I was actually wondering myself what would be an easy way to turn an analog signal into a binary one, like is there a single chip* solution ?
(no cheating with microprocessors ) That also came up after watching a youtube video, but it was about the Analog Solutions Generator
Sequencer which has a simple but neat way to control the gate output. It has 16 steps which are divided into 4 sections of 4 steps, and for
each section there is a knob that turns on the gate in a binary way. So the first knob controls the gate for steps 1,2,3,4 and if you rotate it
CW it goes from off, step 1, step 2, steps 1 & 2, step 3, steps 1 & 3, etc,.. up to steps 1 & 2 & 3 & 4.


* to clarify,. a single chip would of course be an ADC but is there in an easy to use one ? or maybe a rather different method.

[dk]

Gut feeling says there isn't much of a need/market for 4-bit ADC chips anymore The smallest I can find is 8, although I guess it could just be hooked up partially?

Keeping things separate, though, I was thinking a 4532 could be used for a 3-bit encoder, or a 74HCT147 for a 4-bit. The latter only turns on it's last bit when everything's high, so it wouldn't need 16 but just 10 comparators on input. Obviously a purpose built chip would have a way more accurate comparator section (would a resistor array help here?), but this is still lunetta, right?

[PHOBoS]