TDA2030

LINEAR INTEGRATED CIRCUIT

UNISONICTECHNOLOGIESCO.,LTD

9 of 13

www.unisonic.com.tw

QW-R107-004,D

It is quite common that midrange and tweeter speakers have an efficiency 3dB higher than woofers.

1

2

5

4

3

UTC

TDA2030

1

2

5

4

3

UTC

TDA2030

1

2

5

4

3

UTC

TDA2030

0.22 F

2200 F

18nF

33nF

100 F

0.22 F

1N4001

1 F

0.1 F

0.1 F

0.22 F

Vs+

18nF

3.3nF

100 F

0.22 F

3.3 nF

3.3 nF

47 F

0.22 F

100 F

0.22 F

220 F

0.22 F

2200 F

1N4001

BD908

BD907

22k

1

4

1.5

1.5

3.3k

22k

22k

680

100

1

22k

22k

6.8k

3.3k

100

2.2k

Vs+

1N4001

1N4001

1N4001

8

1

2.2k

12k

100

22k

8

22k

22k

Vs+

100 F

Vs+

IN

Woofer

Midrange

Tweeter

High-pass

3KHz

High-pass

3KHz

Band-pass

300Hz to 3KHz

Low-pass

300Hz

1N4001

MUSICAL INSTRUMENTS AMPLIFIERS

Another important field of application for active system is music.

In this area the use of several medium power amplifiers is more convenient than a single high power amplifier, and

it is also more reliable. A typical example (see Fig. 4) consist of four amplifiers each driving a low-cost, 12 inch

loudspeaker. This application can supply 80 to 160W rms.