1997 Aug 14 9
Philips Semiconductors Preliminary specification
2 × 23 W high efficiency car radio power
amplifier
TDA1561Q
AC CHARACTERISTICS
V
P
= 14.4 V; R
L
=4Ω; C
11
= 1000 µF; f = 1 kHz; T
amb
=25°C; measured in Fig.6; unless otherwise specified.
Notes
1. The distortion is measured with a bandwidth of 10 Hz to 30 kHz.
2. Frequency response externally fixed (input capacitors determine low frequency roll-off).
3. The SE to BTL switch voltage level depends on V
P
.
4. Noise output voltage measured with a bandwidth of 20 Hz to 20 kHz.
5. Noise output voltage is independent of R
s
(see Fig.6)(V
i
= 0 V).
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
P
o
output power THD = 1% 15 18 − W
THD = 10% 21 23 − W
EIAJ − 36 − W
V
P
= 13.2 V; THD = 0.5% − 14 − W
V
P
= 13.2 V; THD = 10% − 20 − W
THD total harmonic distortion P
o
= 1 W; f = 1 kHz; note 1 − 0.1 − %
P
d
dissipated power see Figs 9 and 10 W
B
p
power bandwidth THD = 1%; P
o
= −1dB
with respect to 15 W
− 20 to
15 000
− Hz
f
ro(l)
low frequency roll-off −1 dB; note 2 − 25 − Hz
f
ro(h)
high frequency roll-off −1 dB 130 −−kHz
G
v
closed loop voltage gain 31 32 33 dB
SVRR supply voltage ripple rejection R
s
=0Ω; V
ripple
= 2 V (p-p)
on; f = 1 kHz 45 60 − dB
mute; f = 1 kHz − 90 − dB
standby; f = 100 Hz to 10 kHz 80 −−dB
CMRR common mode rejection ratio R
s
=0Ω; f = 1 kHz − 80 − dB
Z
i
input impedance 45 60 75 kΩ
∆Z
i
mismatch in input impedance − 1 − %
V
SE-BTL
SE to BTL switch voltage level note 3 − 3 − V
V
out
output voltage-mute (RMS value) V
i
= 1 V (RMS) − 50 100 µV
V
n(o)
noise output voltage on; R
s
=0Ω; note 4 − 160 300 µV
on; R
s
=10kΩ; note 4 − 170 −µV
mute; note 5 − 20 −µV
α
cs
channel separation R
s
=0Ω 40 60 − dB
∆G
v
channel unbalance −−1dB
