Low pass filter

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R

rodolfo

Member
Joined 2004
Raka said:
Hi,

I'm building a new GC with a pre stage (buf634 and OPA627 a la Carlos) and would like to include the low pass filter as suggested by Rassmusen.
Should I locate the LPF attached to the very chip? I'm planning the inverted Thorsten one, but because now will be buffered and the pot (10K) will be at the input of the OPA I don't know which the values for the filter will be.
Will be ok with the following values?
Click to expand...


chek this schem.


:D
 

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