Onkyo LOW PASS FILTER, HIGH PASS FILTER User Manual

LOW PASS FILTER

A Low Pass filter circuit design
allows frequencies below a

predetermined (cutoff
frequency) point to pass

through while restricting
(limiting) the high frequency. In
a typical application a LOW
PASS filter does not provide
attenuation. In an example given
by fig1, the values of capacitors
C01 and C02 and resistors R01
and R02 determine the cutoff
frequency. C01 and C02 may be
of an equal value so are R01and
R02.

Formula:

cutoff = 1/2πRC

HIGH PASS FILTER

π)

Where (

A High Pass filter circuit design
allows frequencies above a

predetermined (cutoff
frequency) point to pass

through while restricting
(limiting) the low frequency. In
a typical application a HIGH
PASS filter does not provide
attenuation. In an example given
by fig2, the values of capacitors
C01 and C02 and resistors R01
and R02 determine the cutoff
frequency. C01 and C02 may be
of an equal value so are R01and
R02.

Formula:

pi = 3.14159.

cutoff = 1/2πRC

Where (

π)

pi = 3.14159.