Philips Semiconductors
24 W BTL or 2 x 12 watt stereo
car radio power amplifier
Product specification
TDA1518BQ
PARAMETER
CONDITIONS
SYMBOL MIN. TYP. MAX. UNIT
Low frequency roll-off
High frequency roll-off
Closed loop voltage gain
Supply voltage ripple
rejection:
ON
mute
stand-by
Input impedance
Noise output voltage:
ON
ON
mute
Switch-on/switch-off
behaviour
note 7;
−3 dB
−1 dB
note 8
note 9;
RS = 0 Ω
RS = 10 kΩ
note 10
fL
−
45
−
Hz
fH
20
−
−
kHz
Gv
45
46
47
dB
RR
RR
RR
|ZI|
Vno(rms)
Vno(rms)
Vno(rms)
dV/dt
48
−
−
dB
48
−
−
dB
80
−
−
dB
25
30
38
kΩ
−
200 −
µV
−
350 700 µV
−
120 −
µV
−
−
note 3 V/ms
Notes to the characteristics
1. All characteristics, for stereo application are measured using the circuit shown in Fig.3.
2. The circuit is d.c. adjusted at VP = 6 V to 18 V and a.c. operating at VP = 8,1 V to 18 V.
3. Value to be fixed.
4. At 18 V < VP < 30 V the d.c. output voltage ≤ VP/2.
5. Output power is measured directly at the output pins of the lC.
6. With bootstrap and a 100 kΩ resistor from pin 12 to the positive supply voltage (VP), value of bootstrap capacitor is
47 µF.
7. Frequency response externally fixed.
8. Ripple rejection measured at the output with a source impedance of 0 Ω (maximum ripple amplitude of 2 V) and a
frequency between 1 kHz and 10 kHz.
9. Noise voltage measured in a bandwidth of 20 Hz to 20 kHz.
10. Noise output voltage independent of RS (VI = 0 V).
11. All characteristics, for BTL application are measured using the circuit shown in Fig.4.
July 1994
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