Configuring SC block as a differentiator

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Anonymous
Not applicable

 Hello PSoC world,

   

 

   

How to create a differentiator using a SC block module ? (Without any external passive components) - This would help me in eliminating the glitches & delays I encounter now when I go for a combo design with external RC network. 

   

 

   

Please attach application notes, howsoever old it is 🙂 

   

 

   

Regards,

   

RAM

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4 Replies
Bob_Marlowe
Level 10
Level 10
First like given 50 questions asked 10 questions asked

There is an application note you might be interested in, look here http://www.cypress.com/?rID=2899

   

 

   

 

   

Bob

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ETRO_SSN583
Level 9
Level 9
250 likes received 100 sign-ins 5 likes given

The ap note does not cover stability, or for that matter show f(jw) curves,

   

so be careful in its use.

   

 

   

A quick test is to feed it with a step and look at response, you can calculate

   

phase margin from that.

   

 

   

http://en.wikipedia.org/wiki/Step_response

   

http://www.ele.uri.edu/~daly/535/margin.html

   

http://www.t-es-t.hu/download/analog/ad4-1.pdf

   

 

   

Regards, Dana.

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Anonymous
Not applicable

 @ Bob - Can you provide a more specific app note - one that is exclusively given for a differentiator ?

   

 

   

@ Dana - thanks. that pdf was awesome. I'd be glad if I get any PSoC specific resources. 

   

 

   

RAM

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Bob_Marlowe
Level 10
Level 10
First like given 50 questions asked 10 questions asked

Sorry, no more AppNotes for this topic. Have a look yourself at PSoC1 Appnotes here http://www.cypress.com/?id=4&rID=55571

   

 

   

Bob

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