TDA7266

LINEAR INTEGRATED CIRCUIT

UNISONICTECHNOLOGIESCO.,LTD

7 of 8

www.unisonic.com.tw

QW-R107-037,C

APPLICATION SUGGESTION(Cont.)

For Low Cost Application

In low cost applications where the mP is not present, the suggested circuit is shown in Fig 3.

The ST-BY and mute terminals are tied together and they are connected to the supply line via an external voltage

divider.

The device is switched-on/off from the supply line and the external capacitor C4 is intended to delay the ST-BY

and MUTE threshold exceeding, avoiding “Popping” problems.

C1

470µF

C2

100nF

Vcc

13

3

1

2

15

14 OUT2-

OUT2+

OUT1-

OUT1+

PW-GND

MUTE

IN2

ST-BY

IN1

S-GND

7

4

9

12

6

8

C3

0.22µF

C5

0.22µF

R1

47k

R2

47k

Vcc

C4

10µF

TDA7266

Fig 3 Stand Alone Low Cost Application