[time-nuts] sine to square wave circuits - performance data?

Bob kb8tq kb8tq at n1k.org
Wed Oct 4 22:33:08 UTC 2017


Hi

The other issue could be that no diode ever operates instantaneously ….

Bottom line is indeed that clipping in protection diodes is not a good idea. External 
diodes …. who knows ….

Bob

> On Oct 4, 2017, at 5:33 PM, Bruce Griffiths <bruce.griffiths at xtra.co.nz> wrote:
> 
> Substrate currents biasing on parasitic devices in  junction isolated process?
> If so, then silicon on insulator CMOS may not exhibit the effect.
> Bruce
>> On 05 October 2017 at 10:18 Attila Kinali <attila at kinali.ch> wrote:
>> 
>> 
>> On Thu, 5 Oct 2017 10:11:37 +1300 (NZDT)
>> Bruce Griffiths <bruce.griffiths at xtra.co.nz> wrote:
>> 
>>> Just avoid current flowing in the input protection circuitry.
>>> 
>>> Once the protection circuit is activated the jitter increases significantly.
>> 
>> Do you know what the mechanism is, that increases jitter in this case?
>> 
>> 			Attila Kinali
>> -- 
>> It is upon moral qualities that a society is ultimately founded. All 
>> the prosperity and technological sophistication in the world is of no 
>> use without that foundation.
>>                 -- Miss Matheson, The Diamond Age, Neil Stephenson
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