formula for low pass filter

[roomy]

hello ,

can any one write down the formula equation for output low pass filter


thanks

 

[Phytech]

You can find that out in any filter books. It all depends on what type of transfer function you want.

 

[roomy]

i dont have this book

is it 1/2piFC OR 1/1+2PIFCR

 

[bigdogguru]

The capacitive reactance for a RC low pass filter:

Here's a tutorial covering the design of a RC low pass filter:

Passive Low Pass Filter

Hope the info answers your question.