Philips TDA8542 - Manual (Page 9)

1998 Apr 01 9
Philips Semiconductors Product specification
2
×
1 W BTL audio amplifier TDA8542
BTL APPLICATION
Fig.3 BTL application.
handbook, full pagewidth
MBH798
14
VCC
ViL
OUTL
−
INL
−
INL
+
OUTL
+
15
100 nF 100 µ F 16 9
1 8
TDA8542
13
OUTR
−
GND
RL
INR
−
11
INR
+
SVR
12
4
3
5
MODE
BTL/SE
2
OUTR
−
OUTR
+
10
RL
7
C3
47
µ
F
1 µ F
1 µ F
R1
R2
R4
10 k Ω
10 k
Ω
50 k Ω
50 k Ω
R3
ViR
Gain left 2
R2
R1
-------- × =
Gain right 2
R4
R3
--------
×
=
Fig.4 I
q
as a function of V
CC
.
RI = ∞ .
handbook, halfpage
0
Iq
(mA)
VCC (V)
20
30
10
0
4 20 8 12 16
MGD890
Fig.5 THD as a function of P
o
.
f = 1 kHz, G
v
= 20 dB.
(1) V
CC
= 5 V, R
L
= 8 Ω .
(2) V
CC
= 9 V, R
L
= 16 Ω .
handbook, halfpage
10
1
THD
(%)
10
− 2
10
− 1
MGD891
10
− 2 10
− 1 1
Po (W)
10
(1) (2)