1997 Jun 12
11
NXP Semiconductors
Product specification
2 W BTL audio amplifier
TDA8543
SE APPLICATION
Fig.14 SE application.
Gain
R2
R1
--------
=
handbook, full pagewidth
MGK408
6
VCC
Vin
OUT
−
IN
−
IN
+
OUT
+
11
100 nF
100
μ
F
470
μ
F
C3
12
13
TDA8543
5
GND
RL
SVR
4
3
MODE
14
C2
47
μ
F
1
μ
F
C1
R1
R2
11 k
Ω
110 k
Ω
Fig.15 THD as a function of P
o
.
handbook, halfpage
10
1
THD
(%)
10
−
2
10
−
1
MGD884
10
−
2
10
−
1
1
Po (W)
10
(1)
(3)
(2)
f = 1 kHz, G
v
= 20 dB.
(1) V
CC
= 7.5 V, R
L
= 4
Ω
.
(2) V
CC
= 9 V, R
L
= 8
Ω
.
(3) V
CC
= 12 V, R
L
= 16
Ω
.
Fig.16 THD as a function of frequency.
P
o
= 0.5 W, G
v
= 20 dB.
(1) V
CC
= 7.5 V, R
L
= 4
Ω
.
(2) V
CC
= 9 V, R
L
= 8
Ω
.
(3) V
CC
= 12 V, R
L
= 16
Ω.
handbook, halfpage
10
1
THD
(%)
f (Hz)
10
−
1
10
−
2
MGD885
10
10
2
10
3
10
4
10
5
(1)
(2)
(3)
