SGS Thomson Microelectronics TDA2822 Datasheet
.SUPPLYVOLTAGEDOWNTO 3 V
.LOWCROSSOVERDISTORSION
.LOWQUIESCENTCURRENT
.BRIDGEORSTEREOCONFIGURATION
TDA2822
DUALPOWER AMPLIFIER
POWER DIP
(Plastic12+2+2)
DESCRIPTION
The TDA2822 is a monolithic integrated circuit in
12+2+2 powerdip, intended for use as dual audio
poweramplifier inportableradiosandTSsets.
TYPI CAL APP LICATION CIRCUIT (STE RE O)
ORDERING NUMBER : TDA2822
March 1995
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TDA2822
PIN CONNE CTIO N (top view)
SCHEMATI C DIA G RAM
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Value Unit
Supply Voltage 15 V
V
s
Output Peak Current 1.5 A
I
o
T
2/11
P
tot
stg,Tj
Total Power Dissipation at T
at T
case
=70°C
Storage and Junction Temperature – 40 to 150 °C
amb
=50°C
1.25
4
W
W
TDA 2822
THERMAL DATA
Symbol Parameter Value Unit
R
th j-amb
R
th j-case
Thermal Resistance Junction-ambient
Thermal Resistance Junction-pins
Max
Max
80
20
°C/W
°C/W
ELECTRICAL CHARACTERISTICS (Vs = 6 V, T
=25°C, unless otherwise specified)
amb
STEREO (test circuit of fig. 1)
Symbol Parameter Test Condition Min. Typ. Max. Unit
Supply Voltage 3 15 V
V
s
Quiescent Output Voltage Vs=9V
V
c
Quiescent Drain Current 6 12 mA
I
d
Input Bias Current 100 nA
I
b
Output Power
P
o
(each channel)
Closed Loop Voltage Gain f = 1 kHz 36 39 41 dB
G
v
Input Resistance f = 1 kHz 100 kΩ
R
i
e
N Total Input Noise Rs=10kΩ
=6V
V
s
d = 10 % f = 1 kHz
=9V RL=4Ω
V
s
=6V RL=4Ω
V
s
= 4.5 V RL=4Ω
V
s
1.3
0.45
B = 22 Hz to 22 kHz
Curve A
4
2.7
1.7
0.65
0.32
2.5
2
SVR Supply Voltage Rejection f = 100 Hz 24 30 dB
CS Channel Separation R
=10kΩ f = 1 kHz 50 dB
g
BRIDGE (test circuit of fig. 2)
V
Supply Voltage 3 15 V
s
Quiescent Drain Current RL= ∞ 612mA
I
d
Output Offset Voltage RL=8Ω 10 60 mV
V
os
Input Bias Current 100 nA
I
b
Output Power d = 10 % f = 1 kHz
P
o
d Distortion (f = 1 kHz) R
Closed Loop Voltage Gain f = 1 kHz 39 dB
G
v
Input Resistance f = 1 kHz 100 kΩ
R
i
e
N Total Input Noise Rs=10kΩ
=9V RL=8Ω
V
s
V
=6V RL=8Ω
s
= 4.5 V RL=4Ω
V
s
=8Ω Po= 0.5 W 0.2 %
L
B = 22 Hz to 22 kHz
Curve A
SVR Supply Voltage Rejection f = 100 Hz 40 dB
2.7
0.9
3.2
1.35
1
3
2.5
V
V
W
W
W
µV
µV
W
W
W
µV
µV
3/11
TDA2822
Figure 1 : Test Circuit (stereo).
Figure 2 : P.C. BoardandComponentsLayoutof theCircuitofFigure1 (1:1 scale).
4/11
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