Treble Band Circuit

The shelving characteristics can be obtained for the treble band.

The equivalent circuit and calculation formula during boost are indicated below.

• Calculation example 1

Specification Set frequency: f = 10000 Hz

Let us use R1 = 11.030 k

Ω and R2 = 45.054 kΩ.

The above constants are inserted in the following formula.

No. 6866-16/24

LC75421M

C

R1

R2

C

=

R2

1

2

πf

(

=

1

2

π10000

45054

5.01–1

≠ 6800(pF)

(

R2

G

= 20 × LOG

10

1

+

Simulation Results

Setting

f = 10 kHz

f = 1 kHz

14 dB

13.95

7.42

12 dB

11.98

6.96

10 dB

10

6.34

8 dB

8

5.5

6 dB

6

4.43

4 dB

4

3.13

2 dB

2

1.64