Demonstration boards and applications suggestions

STA540SA

26/30

Doc ID 16066 Rev 2

9.2

STA540SA-BTL evaluation board

This board is intended to debug the double-bridge application. The schematic is shown in

Figure 37 and the PCB / components layout is shown in Figure 38.

Figure 37.

STA540SA-BT evaluation board

Figure 38.

Component layout

With this board, the left and right speakers are connected in a BTL allowing the

implementation of a high-power stereo application with few external components.

Additionally, a switch is available on this board to test the standby function and a test point

(DIAG) where it is possible to verify the diagnostic feature (see Section 8.7 on page 20).

+5V

+5V

OUTL-

STANDBY

+C1

10 µF 25 V

+

R1

10 K

SGND

DIAG

C2

100nF

C5

0.47µF

C4

0.47µF

OUTL+

GND

OUT1

1

OUT2

2

IN1

4

IN2

5

SVR

8

IN4

15

IN3

16

OUT4

18

OUT3

19

U1

R2

10 K

VS

C6

47µF 25V

SGND

+C3

1000µF 25V

+

+5V

IN R

OUTR-

IN L

OUTR+

STA540SA

Obsolete

Product(s)

- Obsolete

Product(s)