STA540SAN

Standard applications circuits

Doc ID 18306 Rev 1

11/26

5

Standard applications circuits

Figure 7.

Quad stereo

Figure 8.

Audio performance option

The best audio performance is obtained with the configuration where each speaker has its

own DC blocking capacitor. If the application allows a little degradation of the spatial image it

is possible to connect a couple of speakers with only one low-value DC blocking capacitor.

Figure 9.

Double bridge

A dedicated evaluation board is available for this application (see Chapter 4 on page 8).

4 x 12 W at 2

Ω, 14.4 V

4 x 10 W at 4

Ω, 17 V

4 x 9 W at 2

Ω, 12 V

4 x 5 W at 4

Ω, 12 V

Suggested applications:

0.22

µF

DIAGNOSTICS

2200

µF

D04AU1555B

10

µF

10K

ST-BY

IN1

0.22

µF

IN2

0.22

µF

IN3

0.22

µF

IN4

P-GND S-GND

47

µF

1000

µF

100nF

VS

2200

µF

2200

µF

2200

µF

OUT1

OUT2

OUT3

OUT4

7

4

5

12

11

6

13

3

1

2

15

14

10

9

8

1

470

µF

2

14

470

µF

15

2 x 9 W at 8

Ω, 12 V

2 x 18 W at 4

Ω, 12 V

2 x 13 W at 8

Ω, 14 V

Suggested applications:

2 x 26 W at 8

Ω, 14 V

2 x 15 W at 8

Ω, 16 V

0.47

µF

1

DIAGNOSTICS

4

7

D95AU1600

10

µF

10K

ST-BY

IN L

0.47

µF

5

11

IN R

12

47

µF

6

13

1000

µF

100nF

3

VS

2

14

15

OUT L

89

10

OUT R