Muff's Modules & More

jjr · Posted: Tue Mar 06, 2012 3:04 pm Post subject: Question about Sequential Switch

Hello -
I own a Module A-151 (Quad Sequential Switch). My question is -
is it alright to trigger the switch at an audio rate ? Say triggering it with a 440khz square wave. Is there a limit to how fast it can be triggered ? Or to want type of signal should be used to trigger ?
thanks
jjr

crabman75 · Posted: Tue Mar 06, 2012 3:23 pm Post subject:

the manual says"do it".It can switch very fast.

the manual even gives you an example how to create new waveforms by clocking it with audio signals.

I ordered one,still waiting cool

lionelfischer · Posted: Tue Mar 06, 2012 6:12 pm Post subject:

is 440khz video rates?

zapp550 · Posted: Tue Mar 06, 2012 6:37 pm Post subject:

440khz is definitely video rate

tuj · Posted: Tue Mar 06, 2012 8:09 pm Post subject:

according to the datasheet, the CD4052 chip will do 40Mhz. MY ASS IS BLEEDING

jjr · Posted: Tue Mar 06, 2012 10:13 pm Post subject:

DOH !!!
sorry I mean 440 but not kilo-hertz -
anyway thanks for your answers and I think I understand it better now
best
jjr

lionelfischer · Posted: Tue Mar 06, 2012 10:22 pm Post subject:

dayyyyamn. 40Mhz video cutting back and forth!! fuck yeah something wonderful

MrBiggs · Posted: Tue Mar 06, 2012 11:52 pm Post subject:

Go for it. If it esplodes, you broke it.

lizlarsen · Posted: Wed Mar 07, 2012 12:37 pm Post subject:

Yep, in this case it's gonna be the I/O circuitry that limits the bandwidth -- not the logic chip. CMOS chips are very fast, but you typically need a high speed input comparator, voltage protection, and high speed output buffer to take full advantage of it.

I know the seq switch can go well into audio rate! Not sure its upper limits though.

wcfields · Posted: Wed Mar 07, 2012 3:43 pm Post subject:

For Video:

I had it running to an LZX VWG Output and it was almost solid lights twitching.

I found it works better to run off a stack of an LFO that you are using for Freq Modulation on the VWG.