TDA7266 Datasheet, PDF (6/7 Pages) STMicroelectronics – 7+7W DUAL BRIDGE AMPLIFIER

TDA7266
APPLICATION SUGGESTION(Cont.)
LINEAR INTEGRATED CIRCUIT
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.


Vcc
IN1
R1
47k
R2
47k
C4
10µF
C3
0.22µF
4
IN1
ST-BY
7
S-GND ₉
C1
3 13
470µF
1 OUT1+
C2
100nF
C5
0.22µF
IN2
2 OUT1-
12
TDA7266
15 OUT2+
MUTE
6
PW-GND
8
14 OUT2-




Fig 3 Stand Alone Low Cost Application
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
6 of 7
QW-R107-037,A