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Hi,
I am simulating some circuits from The Art of Electronics Student Guide.I simulated the LPF shown in figure,the problem is that it does not remove all high frequenies and i get a wiggle in the output. Can any one tell me why?
16Khz doesnt appear at the ouput as such.Its the distortion i get which i shouldnt be getting.I am uploading the file.
PSidnt get the link by Eric and also AL's Reply i will work at it and tell you thanks.
Thanks Two stages make it much better.Can i know why did i require two stages whereas in the book it is said to be done with a single stage?
My other question is that why is the signal of 1Khz being attenuated?It should pass unscathed shouldnt it?It decreases by nearly 4 times every stage.
hi,
The impedance of a capacitor is Xc= 1/(2 * pi * f *C)
So at 1KHz, Xc = 15.9KΩ [16KΩ]
As you have a 10K resistor connected to this 16K [Xc] it is acting as a potential divider between the input and output.
So, Vout~ = Vinp~ * (16K/(10K+16K)) = 0.61