TDA2824.PDF

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DUAL POWER AMPLIFIER
TDA2824
DUAL POWER AMPLIFIER
. SUPPLY VOLTAGE DOWN TO 3 V
. BRIDGE OR STEREO CONFIGURATION
Powerdip (12+2+2)
DESCRIPTION
The TDA2824 is a monolithic integrated circuit in
12+2+2 powerdip, intended for use as dual audio
power amplifier in portable radios and TV sets.
ORDERING NUMBER : TDA2824
TYPICAL APPLICATION CIRCUIT (Stereo)
R2
January 1995
1/10
. HIGH SVR
. LOW CROSSOVER DISTORTION
. LOW QUIESCENT CURRENT
11044842.002.png
TDA2824
PIN CONNECTION
SCHEMATIC DIAGRAM
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
V S
Supply Voltage
16
V
I O
Output Peak Current
1.5
A
P tot
Total Power Dissipation at T amb =50
°
C
1.25
4
W
W
T amb =70
°
C
T stg ,T j Storage and Junction Temperature
-40 to 150
C
2/10
°
11044842.003.png
TDA2824
THERMAL DATA
Symbol
Parameter
Value
Unit
R th j-amb Thermal Resistance Junction-ambient
Max.
80
° C/W
R th j-case Thermal Resistance Junction-case
Max.
20
°
C/W
ELECTRICAL CHARACTERISTICS (V S = 6V, T amb =25
°
C, unless otherwise specified)
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
STEREO (test circuit of fig. 1)
V S
Supply Voltage
3
15
V
V O
Quiescent Output Voltage V S =9V
V S =9V
4
2.7
V
V
I d
Quiescent Drain Current
6
12
mA
I b
Input Bias Current
100
nA
P O
Output Power
(each channel)
d = 10% f = 1KHz
V S =9V R L =4
W
V S =6V R L =4
1.3
0.45
1.7
0.65
0.32
W
W
W
W
V S = 4.5V R L =4
W
d
Distortion
V S = 9V, f = 1KHz
R L =8
0.2
%
W
,P O = 0.5W
G V
Closed Loop Voltage
Gain
f = 1KHz
36
39
41
dB
R i
Input Resistance
f = 1KHz
100
K
W
e N
Total Input Noise
R S = 10K
W
B = 22Hz to 22KHz
2.5
m
V
Curve A
2
m
V
SVR
Supply Voltage Rejection f = 100Hz
40
50
dB
CS
Channel Separation
R S = 10K
W
f = 1KHz
50
dB
BRIDGE (test circuit of fig. 2)
V S
Supply Voltage
3
15
V
V OS
Output Offset Voltage
R L =8
60
mV
I b
Imput Bias Current
100
nA
P O
Output Power
d = 10%
V S =9V
V S =6V
V S = 4.5V
f = 1KHz
R L =8
W
R L =8
2.5
0.9
3.2
1.35
1
W
W
W
W
R L =4
W
d
Distortion (f = 1KHz)
R L =8
P O = 0.5W
0.2
%
G V
Closed Loop Voltage
Gain
f = 1KHz
39
dB
e N
Total Input Noise
R S = 10K
W
B = 22Hz to 22KHz
3
mV
Curve A
2.5
m
V
SVR
Supply Voltage Rejection f = 100Hz
48
60
dB
3/10
W
W
11044842.004.png
TDA2824
Figure 1 : Test Circuit (stereo).
R2
Figure 2: P.C. Board and Component Layout of the Circuit of Figure 1. (1:1 scale)
4/10
11044842.005.png
TDA2824
Figure 3 : Test Circuit (bridge).
Figure 4: P.C. Board and Component Layout of the Circuit of Figure 3. (1:1 scale)
5/10
11044842.001.png

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