November 1982
6
Preliminary Specification
Philips Semiconductors
Product specification
12 W car radio power amplifier
TDA1020
Notes
1. Measured with an ideal coupling capacitor to the speaker load.
2. Measured with a load resistor of 40 k
Ω.
3. Measured according to IEC curve-A.
4. Maximum ripple amplitude is 2 V; input is short-circuited.
5. Total current when disconnecting pin 5 or short-circuited to ground (pin 9).
6. The tab must be electrically floating or connected to the substrate (pin 9).
Input impedance
preamplifier
|Z
i
|
typ.
40 k
Ω
28 to 52 k
Ω
power amplifier
|Z
i
|
typ.
40 k
Ω
28 to 52 k
Ω
Output impedance
preamplifier
|Z
o
|
typ.
2,0 k
Ω
1,4 to 2,6 k
Ω
power amplifier
|Z
o
|
typ.
50 m
Ω
Output voltage (r.m.s. value) at d
tot
= 1%
preamplifier (note 2)
V
o(rms)
>
1 V
typ.
1,5 V
Frequency response
B
50 Hz to 25 kHz
Noise output voltage (r.m.s. value; note 3)
R
S
= 0
Ω
V
n(rms)
typ.
0,3 mV
<
0,5 mV
R
S
= 8,2 k
Ω
V
n(rms)
typ.
0,5 mV
<
1,0 mV
Ripple rejection (note 4)
at f = 100 Hz; C2 = 1
µ
F
RR
typ.
44 dB
at f = 1 kHz to 10 kHz
RR
>
48 dB
typ.
54 dB
Bootstrap current at onset of clipping (pin 4)
R
L
= 4
Ω
and 2
Ω
I
4
typ.
40 mA
Stand-by current (note 5)
I
sb
<
1 mA
Crystal temperature for
−
3 dB gain
T
c
>
150
°
C
