1997 Jun 12
6
NXP Semiconductors
Product specification
2 W BTL audio amplifier
TDA8543
DC CHARACTERISTICS
V
CC
= 5 V; T
amb
= 25
°
C; R
L
= 8
Ω
; V
MODE
= 0 V; G = 20 dB; measured in test circuit Fig.4; unless otherwise specified.
Notes
1. With a load connected at the outputs the quiescent current will increase, the maximum of this increase being equal
to the DC output offset voltage divided by R
L
.
2. The DC output voltage with respect to ground is approximately 0.5
×
V
CC
.
AC CHARACTERISTICS
V
CC
= 5 V; T
amb
= 25
°
C; R
L
= 8
Ω
; f = 1 kHz; V
MODE
= 0 V; G = 20 dB; measured in test circuit Fig.4; unless otherwise
specified.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
V
CC
supply voltage
operating
2.2
5
18
V
I
q
quiescent current
R
L
=
∞
; note 1
−
8
12
mA
I
stb
standby current
V
MODE
= V
CC
−
−
10
μ
A
V
O
DC output voltage
note 2
−
2.2
−
V
⎪
V
OUT+
−
V
OUT
−
⎪
differential output voltage offset
−
−
50
mV
I
IN+
, I
IN
−
input bias current
−
−
500
nA
V
MODE
input voltage mode select
operating
0
−
0.5
V
mute
1.5
−
V
CC
−
1.5 V
standby
V
CC
−
0.5
−
V
CC
V
I
MODE
input current mode select
0 < V
MODE
< V
CC
−
−
20
μ
A
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
P
o
output power
THD = 10%;
V
CC
= 5 V; R
L
= 8
Ω
1
1.2
−
W
V
CC
= 7.5 V; R
L
= 8
Ω
−
2.2
−
W
V
CC
= 9 V; R
L
= 16
Ω
−
2.0
−
W
THD = 0.5%;
V
CC
= 5 V; R
L
= 8
Ω
0.6
0.9
−
W
V
CC
= 7.5 V; R
L
= 8
Ω
−
1.7
−
W
V
CC
= 9 V; R
L
= 16
Ω
−
1.4
−
W
THD
total harmonic distortion
P
o
= 0.5 W
−
0.15
0.3
%
G
v
closed loop voltage gain
note 1
6
−
30
dB
Z
i
differential input impedance
−
100
−
k
Ω
V
no
noise output voltage
note 2
−
−
100
μ
V
SVRR
supply voltage ripple rejection
note 3
50
−
−
dB
note 4
40
−
−
dB
V
o
output voltage in mute condition note 5
−
−
200
μ
V