July 1994
7
Philips Semiconductors
Product specification
2 x 22 W stereo BTL differential amplifier
with speaker protection and dynamic
TDA1556Q
AC CHARACTERISTICS
V
p
= 14.4 V; R
L
= 4
Ω
; f = 1 kHz; T
amb
= 25
°
C; unless otherwise specified
SYMBOL
PARAMETER
CONDITION
MIN.
TYP.
MAX.
UNIT
P
O
output power
THD = 0.5%
15
17
−
W
THD = 10%
20
22
−
W
THD = 0.5%;
V
P
= 13.2 V
−
12
−
W
THD = 10%;
V
P
= 13.2 V
−
17
−
W
THD
total harmonic distortion
P
O
= 1 W
−
0.1
−
%
B
power bandwidth
THD = 0.5%;
P
O
=
−
1 dB; with
respect to 15 W
−
20 to
15000
−
Hz
f
l
low frequency roll-off
−
1 dB; note 4
−
25
−
Hz
f
h
high frequency roll-off
−
1 dB
20
−
−
kHz
G
v
closed loop voltage gain
25
26
27
dB
SVRR
supply voltage ripple rejection
note 5
ON condition
48
−
−
dB
MUTE condition
48
−
−
dB
stand-by condition
80
−
−
dB
Z
i
input impedance
100
120
150
k
Ω
∆
Z
i
input impedance
note 6
−
4
−
%
V
no
noise output voltage
ON: R
s
= 0
Ω
; note 7
−
70
120
µ
V
ON: R
s
= 10 k
Ω
;
note 7
−
100
−
µ
V
MUTE: R
s
= 10 k
Ω
;
notes 7 and 8
−
60
−
µ
V
α
channel separation
R
s
= 10 k
Ω
40
−
−
dB
∆
G
v
channel unbalance
−
−
1
dB
CMRR
common mode rejection ratio
note 9
64
72
−
dB
THD
total harmonic distortion
I
DDD
= 50
µ
A (peak)
−
3.5
−
%
