July 1994 8
Philips Semiconductors Product specification
4 x 12 W single-ended car radio power amplifier with
dynamic distortion detector and diagnostic interface
TDA8562Q
AC CHARACTERISTICS
V
P
= 14.4 V; RL = 4 Ω; f = 1kHz; T
amb
= 25 °C; measured in Fig.6; unless otherwise specified.
Notes
1. The circuit is DC adjusted at V
P
= 6 to 18 V and AC operating at VP = 8.5 to 18 V.
2. At 18 V < VP < 30 V the DC output voltage ≤ VP/2.
3. Output power is measured directly at the output pins of the IC.
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 (p-p) and
at a frequency of between 100 Hz and 10 kHz.
6. Noise measured in a bandwidth of 20 Hz to 20 kHz.
7. Noise output voltage independent of Rs (VI = 0 V).
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
P
O
output power note 3
THD = 0.5% 4 5 − W
THD = 10% 5.5 7 − W
THD total harmonic distortion P
O
= 1 W − 0.1 − %
P
O
output power RL = 2 Ω; note 3
THD = 0.5% − 10 − W
THD = 10% − 12 − W
f
l
low frequency roll-off at −3 dB; note 4 − 45 − Hz
f
h
high frequency roll-off at −1 dB 20 −−kHz
G
v
closed loop voltage gain 19 20 21 dB
RR supply voltage ripple rejection note 5
on 48 −−dB
mute 48 −−dB
stand-by 80 −−dB
Z
I
input impedance 50 60 75 kΩ
V
no
noise output voltage
on R
s
= 0Ω; note 6 − 50 −µV
on R
s
= 10 kΩ; note 6 − 70 100 µV
mute notes 6 and 7 − 50 −µV
α channel separation R
s
= 10 kΩ 40 −−dB
∆G
v
channel unbalance −−1dB
Dynamic distortion detector
THD total harmonic distortion V
16
≤ 0.6 V;
no short-circuit
− 10 − %