tda2822m, Ham- CB Radio, Karty katalogowe
[ Pobierz całość w formacie PDF ]
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
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
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
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
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
[ Pobierz całość w formacie PDF ]