0.3

µF

1/2

TDA2320A

1

3

2

10k

Ω

22k

Ω

IN

56nF

56nF

0.1

µF

1/2

TDA2320A

7

5

6

0.47

µF

5k

Ω

5.6k

Ω

1.8nF

12k

Ω

12k

Ω

12k

Ω

10nF

6.8nF

Figure 18 : 200Hz to 2kHz Active Bandpass Filter for Midrange Speakers

C

-

C

22k

Ω

10k

Ω

1/2

TDA2320A

3

2

1

Figure 19 : Subsonic Filter

C (

µF)

15

22

30

55

100

0.68

0.47

0.33

0.22

0.1

C1 (nF)

C2 (nF)

3

5

10

15

3.9

2.2

1.2

0.68

6.8

4.7

2.2

1.5

10k

Ω

C1

-

C2

10k

Ω

3

2

1/2

TDA2320A

1

Figure 20 :High-cut Filter

TDA2320A

9/12