[sdiy] 10 step sequencer

[Jaco Sloof]

Components needed:
4017 (10 stage Johnson-counter)

signal --> 4017 Clock input
signal --> first input of 10 (2-port) AND ports
4017 0-9 outputs --> other input of 10  (2-port) AND ports

outputs of the AND ports will be Logic 1 one at a time
and won't be on longer then the input signal.

(please note, i dunno about the rise/fall time of the
and ports, and how quick a 4017 can react on its own.
Still tinkering with cmos myself, still killing 555's)

so thats a lot of "maybe" but i think this would set things in
the right direction.

Greets, Jaco Sloof

--- Dave Krooshof <synthos at xs4all.nl> wrote:
> Hi there.
> 
> I'm looking for a sequencing IC for a little pulse AM thingy I'm 
> erxperimenting with.
> I'm looking for a [1 input, more outputs] IC that's able to do this:
> 
> On every pulse it gets, it should set this pulse on the next output.
> The pulse it receives, will be 5 to 7 ms wide.
> The pulserate on it's input might be as high as every 10ms.
> The IC should have 8 or 10 outputs, 16 outputs is also OK.
> The pulse on the outputs should rotate over these outputs.
> The pulsewidth should be equal to the clock/trigger pulse (5 to 7ms)
> No more then 1 output at a time may send a logical 1 out.
> Powersupply will be + and - 9 volts from 2 batteries.
> 
> Do you guys (m/f) know of a IC that's able to do this?
> 
> For low power consumption, I prefer a "one stone" sollution.
> I also was thinking of converting a digital counter, but then I worry
> about the pulsewidth, which is kinda important to me.
> 
> Thanks in advance!
> -- 
> --
> 
> groets,
> 
> _          >^v<        _
> 
> website http://www.dendriet.nl


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