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tbm  
#1 Posted : Tuesday, September 14, 2010 4:24:20 AM(UTC)
tbm

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Hi

My knowledge seems to come to an end on the Legato schematics...
I don't get the LP corner freq 85KHz...
So simple question for you: Which RC components makes the 1st order LP filer?

Cheers,
Tom Think

Edited by user Tuesday, September 14, 2010 4:25:25 AM(UTC)  | Reason: Not specified

Russ White  
#2 Posted : Tuesday, September 14, 2010 5:06:45 PM(UTC)
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Its the combination of the I/V resistors and the caps that are in parallel with them (or to GND you choice)
tbm  
#3 Posted : Tuesday, September 14, 2010 11:29:09 PM(UTC)
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Which ones? I am in "tea spoon mode".
I would like to test out 100KHz corner and compare, thus need to calculate new C in the RC filter.
I guess the C1..4 are the C's in the RC filter, or?
And Rx, Ry, .., Rz are the R's in the RC filter?
tbm  
#4 Posted : Saturday, September 18, 2010 7:41:00 AM(UTC)
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Anyone?
Russ White  
#5 Posted : Saturday, September 18, 2010 3:31:46 PM(UTC)
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Correct R1-4 and C1-4 are the values you need to consider for the filter..
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