Philips Semiconductors
Product specification
2 x 22 W BTL stereo car radio power
amplifier with loudspeaker protection
TDA1553Q
AC CHARACTERISTICS
V = 14.4 V; R = 4 Ω; f = 1 kHz; T
= 25 °C; measurements taken using Fig.3; unless otherwise specified
P
L
amb
PARAMETER
CONDITIONS
SYMBOL
MIN.
15
TYP.
17
MAX.
UNIT
Output power
THD = 0.5%
THD = 10%
THD = 0.5%
THD = 10%
P
−
−
−
−
−
W
o
o
o
o
P
P
P
20
−
22
12
17
0.1
W
W
W
%
Output power at V = 13.2 V
P
−
Total harmonic distortion
Power bandwidth
P = 1 W
THD
−
o
THD = 0.5%
P = −1 dB
o
w.r.t. 15 W
B
−
20 to
−
Hz
w
15000
Low frequency roll-off
note 4
−1 dB
−1 dB
f
f
−
25
−
−
−
Hz
kHz
dB
dB
dB
dB
dB
kΩ
L
High frequency roll-off
Closed loop voltage gain
Supply voltage ripple rejection
ON
20
25
42
48
48
80
50
H
G
26
−
27
−
v
notes 5, 6
RR
RR
RR
RR
notes 5, 7
−
−
mute
notes 5, 6, 7
notes 5, 6, 7
−
−
stand-by
−
−
Input impedance
Noise output voltage
(RMS value)
|Z |
60
75
i
ON
R = 0 Ω; note 8
V
V
V
α
−
70
100
60
−
120
−
µV
µV
µV
dB
dB
S
no(rms)
no(rms)
no(rms)
ON
R = 10 kΩ; note 8
−
S
mute
notes 8, 9
−
−
Channel separation
Channel unbalance
40
−
−
|∆G |
−
1
v
Notes to the characteristics
1. The circuit is DC adjusted at V = 6 V to 18 V and AC operating at V = 8.5 V to 18 V.
P
P
2. At 18 V < V < 30 V the DC output voltage ≤ V /2.
P
P
3. Conditions:
a) V = 0 V
11
b) short-circuit to GND
c) switch V to MUTE or ON condition (rise time ≥ 10 µs).
11
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 (V = 0 V).
S
I
July 1994
7
NXP [ NXP ]
