Philips Semiconductors
2 x 22 W BTL car radio power amplifier
with diagnostic facility
Preliminary specification
TDA1551Q
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP. MAX. UNIT
α
∆Gv
channel separation
channel unbalance
dynamic distortion detector
switch level
MUTE; notes 5 and 6
RS = 10 kΩ
−
60
40
−
−
−
−
3.5
−
µV
−
dB
1 dB
−
%
I2C-bus (see I2C-bus protocol)
VIH
input voltage HIGH
VIL
input voltage LOW
IIH
input current HIGH
IIL
input current LOW
VOL
output voltage LOW
V = 5.5 V
V = GND
IL = 3 mA
Power-on reset (increasing supply voltage)
3
−
− 0.3
−
−10
−
−10
−
−
−
5.5 V
1.5 V
10 µA
10 µA
0.4 V
VP
start of reset
end of reset
0.5
−
−
−
−
V
5V
Standby (pin 9)
V9
input voltage HIGH
input voltage LOW
3
−
VP V
−
−
2V
Notes to the characteristics
1. The circuit is DC adjusted at VP = 6 V and AC operating at VP = 8 to 18 V.
2. At 18 V < VP < 30 V the DC output voltage < VP/2.
3. Frequency response externally fixed.
4. Ripple rejection measured at the output with a source impedance of 0 Ω and at frequency of 100 Hz to 10 kHz
(amplitude = 2 V(p-p)).
5. Noise voltage measured in a bandwidth of 20 Hz to 20 kHz.
6. Noise output voltage independent of RS (VI = 0 V).
7. Output power is measured directly at the output pins of the IC.
July 1994
9