Bleed resistor and C_mod connection schematic for CSD2X

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Anonymous
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I have a 28-pin SOIC CY8C22545 and I'm using it as a proximity sensor.  PSoC designer has the module CSD2X 3.10 available for this chip. I'm using the module in the "Dual-channel with Rb configuration".

   

 

   

What I would like to know is:

   
        
  1. What are the advantages/disadvantages of using IDAC over Rb in a proximity application and which one suits the application best?
  2.     
  3. In case of the Rb configuration, how are Rb and C_mod connected to the PSoC device? There are no schematics in the CSD2X 3.10 datasheet.
  4.    
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3 Replies
Anonymous
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 Sorry, with respect to the second question, there is a  schematic in the datasheet; my bad. But the first question still stands.

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Anonymous
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        Hi Nikhil   
I don't know Rb and CSD2X, however   
One dev kit which I knew is here ...   
[ http://www.cypress.com/?rID=17673 ]   
There are Prox and Capsense example   
Code example.zip is useful   
I'm not sure that will help for you.   
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ETRO_SSN583
Level 9
Level 9
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This might help on Rb vs IDAC -

   

 

   

    

   

          ftp://ftp.efo.ru/pub/cypress/psoc/capsense/an2408.pdf

   

 

   

Regards, Dana.

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