—8—

CXA1352AS

Description of Operation

1. Graphic equalizer

• Conventional system

Fig. 1.

equalizer becomes maximum cut. At that time, assuming transmittance as T (s), we have

T (s) =

Z (s)

Here as

Z (s) = sL+R+

1

sC

Then

T (s) =

ωo

,

ωo as ωo =

1

, and Q as Q =

ωoL

,

2

π

LC

R

we can obtain the frequency

characteristics at cut.

At that time transmittance is :

T (s) =

=

Z (s)

Defining fo,

ωo and Q as for cut, we can obtain the frequency characteristics at boost.

OPERATIONAL AMPLIFIER

BOOST

CUT

L

C

Z (s)

R