Philips Semiconductors
2 W BTL audio amplifier
BTL APPLICATION
Product specification
TDA8543
handbook, full pagewidth
R2 56 kΩ
C1 R1
1 µF 11 kΩ
Vin
C2
47 µF
IN−
6
IN+
5
SVR
4
MODE
3
12
TDA8543
OUT−
11
OUT+
14
100 nF
RL
13
GND
MGK403
VCC
100 µF
Gain = 2 × RR-----21--
Fig.4 BTL application.
handbook,1h5alfpage
Iq
(mA)
10
MGD876
10
handbook, halfpage
THD
(%)
1
MGK404
(1) (3) (2)
5
10−1
0
0
4
8
12
16
20
VCC (V)
RL = ∞.
Fig.5 Iq as a function of VCC.
1997 Jun 12
10−2
10−2
10−1
f = 1 kHz, Gv = 20 dB.
(1) VCC = 5 V, RL = 8 Ω.
(2) VCC = 7.5 V, RL = 8 Ω.
(3) VCC = 9 V, RL = 16 Ω.
1
10
Po (W)
Fig.6 THD as a function of Po.
8