TDA2822M.pdf

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DUAL LOW-VOLTAGE POWER AMPLIFIER
TDA2822M
DUAL LOW-VOLTAGE POWER AMPLIFIER
. SUPPLY VOLTAGE DOWN TO 1.8V
. BRIDGE OR STEREO CONFIGURATION
MINIDIP
ORDERING NUMBER : TDA2822M
DESCRIPTION
The TDA2822M is a monolithic integrated circuit in
8 lead Minidip package. It is intended for use as
dual audio power amplifier in portable cassette
players and radios.
PIN CONNECTION (Top view)
March 1995
1/11
. LOW QUIESCENT CURRENT
. LOW CROSSOVER DISTORSION
20664600.002.png
TDA2822M
SCHEMATIC DIAGRAM
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
V s
Supply Voltage
15
V
I o
Peak Output Current
1
A
P tot
Total Power Dissipation at T amb =50 ° C
at T case =50
°
C
1
1.4
W
W
T stg ,T j
Storage and Junction Temperature
– 40, + 150
°
C
THERMAL DATA
Symbol
Parameter
Value
Unit
R th j-amb
Thermal Resistance Junction-ambient
Max.
100
°
C/W
R th j-case
Thermal Resistance Junction-pin (4)
Max.
70
°
C/W
2/11
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TDA2822M
ELECTRICAL CHARACTERISTICS (V S =6V,T amb =25 o C, unless otherwise specified)
Symbol
Parameter
Test Conditions
Min. Typ. Max. Unit
STEREO (test circuit of Figure 1)
V s
Supply Voltage
1.8
15
V
V o
Quiescent Output Voltage
V s =3V
2.7
1.2
V
V
I d
Quiescent Drain Current
6
9
mA
I b
Input Bias Current
100
nA
P o
Output Power (each channel)
(f = 1kHz, d = 10%)
mW
R L =32
W
V S =9V
V S =6V
V S = 4.5V
V S =3V
V S =2V
300
120
60
20
5
220
1000
380
650
320
110
90
15
R L =16
W
V S =6V
170
R L =8 W
V S =9V
V S =6V
300
450
R L =4
W
V S =6V
V S = 4.5V
V S =3V
d
Distortion (f = 1kHz)
R L =32
W
P o = 40mW
0.2
0.2
0.2
%
%
%
R L =16
W
P o = 75mW
R L =8
W
P o = 150mW
G v
Closed Loop Voltage Gain
f = 1kHz
36
39
41
dB
D
G v
Channel Balance
±
1B
i
Input Resistance
f = 1kHz
100
k
W
e N
Total Input Noise
R s = 10k
W
B = Curve A
B = 22Hz to 22kHz
2
2.5
m
V
m
V
SVR
Supply Voltage Rejection
f = 100Hz, C1 = C2 = 100
m
F
24
30
dB
C s
Channel Separation
f = 1kHz
50
dB
BRIDGE (test circuit of Figure 2)
V s
Supply Voltage
1.8
15
V
I d
Quiescent Drain Current
R L =
8
6
9
A
V os
Output Offset Voltage
(between the outputs)
R L =8
W
±
50
mV
I b
Input Bias Current
100
nA
P o
Output Power (f = 1kHz, d = 10%)
mW
R L =32 W
V S =9V
V S =6V
V S = 4.5V
V S =3V
V S =2V
1000
400
200
65
8
2000
800
120
1350
700
220
1000
350
80
320
50
R L =16
W
V S =9V
V S =6V
V S =3V
R L =8
W
V S =6V
V S = 4.5V
V S =3V
900
R L =4
W
V S = 4.5V
V S =3V
V S =2V
200
d
Distortion
P o = 0.5W, R L =8
W
, f = 1kHz
0.2
%
G v
Closed Loop Voltage Gain
f = 1kHz
39
dB
R i
Input Resistance
f = 1kHz
100
k
W
e N
Total Input Noise
R s = 10k
W
B = Curve A
B = 22Hz to 22kHz
2.5
3
m
V
m
V
SVR
Supply Voltage Rejection
f = 100Hz
40
dB
B
Power Bandwidth (–3dB)
R L =8
W
,P o = 1W
120
kHz
3/11
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TDA2822M
Figure 1 : Test Circuit (Stereo)
Figure 2 : Test Circuit (Bridge)
Figure 3 : P.C. Board and Components Layout
of the Circuit of Figure 1
Figure 4 : P.C. Board and Components Layout
of the Circuit of Figure 2
4/11
20664600.005.png
TDA2822M
Figure 5 : Quiescent Current versus
Supply Voltage
Figure 6 : Supply Voltage Rejection versus
Frequency
Figure 7 : Output Power versus Supply Voltage
(THD = 10%, f = 1kHz Stereo)
Figure 8 : Distorsion versus Output Power
(Stereo)
Figure 9 : Distorsion versus Output Power
(Stereo)
Figure 10 : Output Power versus Supply Voltage
(Bridge)
5/11
20664600.001.png

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