[sdiy] Quick question about 4066/4016 switches

[mark verbos]

I'm not saying that you're wrong, Harry....
but the Echotron (where I pulled that passive approach) clocks up around 1MHz and gets by.

;)

Mark




On Mar 15, 2011, at 4:19 PM, Harry Bissell wrote:

> forget the passive approach, IMHO. Its too slow for that frequency. I'd use a transistor
> level shifter...
> 
> H^) harry
> 
> 
> ----- Original Message -----
> From: Tom Wiltshire <tom at electricdruid.net>
> To: Neil Johnson <neil.johnson97 at ntlworld.com>
> Cc: synthdiy diy <synth-diy at dropmix.xs4all.nl>
> Sent: Tue, 15 Mar 2011 16:10:11 -0400 (EDT)
> Subject: Re: [sdiy] Quick question about 4066/4016 switches
> 
> 
> On 15 Mar 2011, at 19:11, Neil Johnson wrote:
> 
>> Tom,
>> 
>>> What's the best way to convert a 5V logic signal to switch a 4066/4016 analogue switch?
>>> 
>>> I was thinking of using transistors an pull-up resistors, but is there a better way?
>>> 
>>> The switch is running on a single ended 9V supply, if that makes any difference.
>> 
>> What is providing the 5V logic signal?  How fast do you want to switch the 40[16]6?
> 
> A PIC is providing the logic signal, and I'm going to use the switch for PWM, so it'll be switching at 40 to 80KHz. Haven't decided exactly yet.
> 
> Thanks,
> Tom
> 
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> -- 
> Harry Bissell & Nora Abdullah 4eva
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