[sdiy] MN3102 ----> CD4047 don't really need the 4007?

[anthony]

I'm just using the 4007 as a voltage controlled resistor. The circuit for 
the Dimension C looks like it already has one for the MN3102, but it's done 
with a BJT and a diode and some other stuff.

I have an MN3102 but I'm using it and I need 2. B^]

> Also has a
>> built-in 250 nS
>> "non-overlap" time for the two clock phases which
>> most simple drive
>> circuits ignore.
>
> ahh thank you.  I have been waiting for those words
> (I always suspected that would be true...)


That's actually a pretty cool feature. Is it just like a tiny shift in 
duty-cycle?

I wonder if the 4047 is cool liek that? I've been going over the datasheet 
for it and it really looks very similar to the MN3102 - in the block diagram 
in the way that the oscillator works: A loopstring of inverters with a tap - 
pins for resistor and capacitor. I wish it had a straight-up VCO like the 
4046. It also looks like it can take a master clock input like the MN3102. 
That will come in handy when I make that triple-BBD pitch shifter on the 
Ampage web site.

> Like to point out that certain FET buffer / drivers
> such as those from Micrel would be suitable for
> clock drivers.  Circuits desinged to drive IGBT in
> inverter applications are ideal for driving the
> capacitive loads of the BBD.  Just make sure they
> clock fast enough for you.
>
> H^) harry  (who will also offer to clock your BBDs
> from
> my 700V inverter @ 500V/us :^)

hee hee