July 1994
7
Philips Semiconductors
Product specification
2 x 22 W BTL stereo car radio power
amplifier
TDA1552Q
AC CHARACTERISTICS
V
P
= 14.4 V; R
L
= 4
Ω
; f = 1 kHz; T
amb
= 25
°
C; measurements taken using Fig.3; unless otherwise specified
Notes to the characteristics
1. The circuit is DC adjusted at V
P
= 6 V to 18 V and AC operating at V
P
= 8.5 V to 18 V.
2. At 18 V < V
P
< 30 V the DC output voltage
≤
V
P
/2.
3. Conditions:
a) V
11
= 0 V
b) short-circuit to GND
c) switch V
11
to MUTE or ON condition (rise time
≥
10
µ
s).
4. Frequency response externally fixed.
5. Ripple rejection measured at the output with a source impedance of 0
Ω
(maximum ripple amplitude of 2 V).
6. Frequency f = 100 Hz.
7. Frequency between 1 kHz and 10 kHz.
8. Noise voltage measured in a bandwidth of 20 Hz to 20 kHz.
9. Noise output voltage independent of R
S
(V
I
= 0 V).
PARAMETER
CONDITIONS
SYMBOL
MIN.
TYP.
MAX.
UNIT
Output power
THD = 0.5%
P
o
15
17
−
W
THD = 10%
P
o
20
22
−
W
Output power at V
P
= 13.2 V
THD = 0.5%
P
o
−
12
−
W
THD = 10%
P
o
−
17
-
W
Total harmonic distortion
P
o
= 1 W
THD
−
0.1
−
%
Power bandwidth
THD = 0.5%
P
o
=
−
1 dB
w.r.t. 15 W
B
w
-
20 to
−
Hz
15000
Low frequency roll-off
note 4
−
1 dB
f
L
−
25
−
Hz
High frequency roll-off
−
1 dB
f
H
20
−
−
kHz
Closed loop voltage gain
G
v
25
26
27
dB
Supply voltage ripple rejection
notes 5, 6
RR
42
−
−
dB
ON
notes 5, 7
RR
48
−
−
dB
mute
notes 5, 6, 7
RR
48
−
−
dB
stand-by
notes 5, 6, 7
RR
80
−
−
dB
Input impedance
|Z
i
|
50
60
75
k
Ω
Noise output voltage
(RMS value)
ON
R
S
= 0
Ω
; note 8
V
no(rms)
-
70
120
µ
V
ON
R
S
= 10 k
Ω
; note 8 V
no(rms)
−
100
−
µ
V
mute
notes 8, 9
V
no(rms)
−
60
−
µ
A
Channel separation
α
40
−
−
dB
Channel unbalance
|
∆
G
v
|
-
−
1
dB
