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Subject: Re: [motm] MOTM-101 clock range too low

From: Richard Brewster <pugix@...>
Date: 2007-02-12

I find that I use the EXT CLK input of the MOTM-101 more than the
internal clock, typically driving it from a MOTM-390 LFO. Advantages:
1) larger range than the internal clock, 2) voltage control of the clock
rate, 3) with a multiple you can gate other modules, such as a MOTM-800,
in sync with each new sample. If external clocking is your typical S&H
usage, then the limited range of the internal clock isn't a big deal.

Richard Brewster
http://www.pugix.com

Scott Juskiw wrote:
>> I've finished my MOTM-101 noise/s&h, and the clock range seems a bit
>> too low. According to the specs it should be 0.1 - 20 Hz typical, but
>> I measure 0.4 .. 13.7 Hz. Which I think is a bit off, to be within
>> the 'typical' range. :-)
>>
>
> It's probably the pot (VR2) that is the problem. Most pots are only
> good to within 20%. There's not much you can do to increase the pot's
> maximum resistance (which affects the lowest frequency of the
> internal clock), but you can change R23 to compensate. You can also
> increase the highest frequency by lowering R22.
>
>
>
>