TDA2822M
DU AL LO W-VOLTAGE PO WER AMPLIFIER
September 2003
PIN CONNECT ION (Top vie w)
MINIDIP
ORDERING NUMBER : TDA2822M
®
.SUPPLY VOLTA G E DOWN TO 1.8V
.LO W CROSSOVER DISTORSION
.LO W Q UIES CE NT CURRENT
.BRIDGE OR STEREO CONFIGURATION
DESCRIPTION
The TD A2822M 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.
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SCHE MATIC DIAGRAM
A BSO L U T E MA XI MUM RATING S
Symbol Parameter Value Unit
VsSupply Voltage 15 V
IoPeak Output Current 1 A
Ptot Total Power Dissipation at Tamb = 50 °C
at Tcase = 50 °C1
1.4 W
W
Tstg, TjStorage and Junction Temperature – 40, + 150 °C
THERMAL DATA
Symbol Parameter Value Unit
Rth j-amb Thermal Resistance Junction-ambient Max. 100 °C/W
Rth j-case Thermal Resistance Junction-pin (4) Max. 70 °C/W
TDA2822M
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ELECTRICA L CHARACTERISTICS (VS = 6V, Tamb = 25oC, unless otherwise specified)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
STEREO (test circuit of Figure 1)
VsSupply Voltage 1.8 15 V
VoQuiescent Output Voltage Vs = 3V 2.7
1.2 V
V
IdQuiescent Drain Current 6 9 mA
IbInput Bias Current 100 nA
PoOutput Power (each channel)
(f = 1kHz, d = 10%) RL = 32ΩVS = 9V
VS = 6V
VS = 4.5V
VS = 3V
VS = 2V
RL = 16ΩVS = 6V
RL = 8ΩVS = 9V
VS = 6V
RL = 4ΩVS = 6V
VS = 4.5V
VS = 3V
90
15
170
300
450
300
120
60
20
5
220
1000
380
650
320
110
mW
d Distortion (f = 1kHz) RL = 32ΩPo = 40mW
RL = 16ΩPo = 75mW
RL = 8ΩPo = 150mW
0.2
0.2
0.2
%
%
%
GvClosed Loop Voltage Gain f = 1kHz 36 39 41 dB
∆GvChannel Balance ± 1 dB
RiInput Resistance f = 1kHz 100 kΩ
eNTotal Input Noise Rs = 10kΩB = Curve A
B = 22Hz to 22kHz 2
2.5 µV
µV
SVR Supply Voltage Rejection f = 100Hz, C1 = C2 = 100µF24 30 dB
CsChannel Separation f = 1kHz 50 dB
BRIDGE (test circuit of Figure 2)
VsSupply Voltage 1.8 15 V
IdQuiescent Drain Current RL = ∞69mA
V
os Output Offset Voltage
(between the outputs) RL = 8Ω±
50 mV
IbInput Bias Current 100 nA
PoOutput Power (f = 1kHz, d = 10%) RL = 32ΩVS = 9V
VS = 6V
VS = 4.5V
VS = 3V
VS = 2V
RL = 16ΩVS = 9V
VS = 6V
VS = 3V
RL = 8ΩVS = 6V
VS = 4.5V
VS = 3V
RL = 4ΩVS = 4.5V
VS = 3V
VS = 2V
320
50
900
200
1000
400
200
65
8
2000
800
120
1350
700
220
1000
350
80
mW
d Distortion Po = 0.5W, RL = 8Ω, f = 1kHz 0.2 %
GvClosed Loop Voltage Gain f = 1kHz 39 dB
RiInput Resistance f = 1kHz 100 kΩ
eNTotal Input Noise Rs = 10kΩB = Curve A
B = 22Hz to 22kHz 2.5
3µV
µV
SVR Supply Voltage Rejection f = 100Hz 40 dB
TDA2822M
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Figure 1 : Test Circ uit (Stereo)
Figure 2 : Test Circ uit (Bridge)
Figure 3 : P.C. Board and Components Layout
of the Circuit of Figur e 1 Figure 4 : P.C. Board and Components Layout
of the Circuit of Figur e 2
TDA2822M
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Figure 5 : Quiescent Current versus
Supply Voltage Figure 6 : Supply Voltage Rejection ver sus
Frequency
Figure 8 : Distorsion versus Output Power
(Stereo)
Figure 7 : Output Power versus Supply Voltage
(THD = 10%, f = 1kHz Stereo)
Figure 9 : Distorsion versus Output P ower
(Stereo) Figure 10 : Output Power versus Supply Voltage
(Bridge)
TDA2822M
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Figure 11 : Distorsion versus Output P ower
(Bridge) Figure 12 : Total Power Dissipation versus
Output Power (Br idge)
Figure 14 : Total Power Dissipation versus
Output Power (Br idge)
Figure 13 : Total Power Dissipation v ersus
Output Power (Br idge)
Figure 15 : Total Power Dissipation v ersus
Output Power (Br idge)
TDA2822M
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Figure 16 : Typical Application in P ortable Pla yers
Figure 17 : Applic ation in Portable Radio Receivers
TDA2822M
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Figure 18 : Portable Radio Cassette P la y er s
Figure 20 : Low Cost Applic ation in Portab le Pla y er s (using only one 100µF output capacitor)
Figure 19 : Portable Stereo Radios
Type Supply Voltage
TDA 7220
TDA 7211A
TEA 1330
TDA 7282
TDA 2822M
1.5 V to 6 V
1.2 V to 6 V
3 V to 15 V
1.5 V to 6 V
1.8 V to 15 V
Type Supply Voltage
TDA 7220
TDA 7211A
TEA 1330
TDA 2822M
1.5 V to 6 V
1.2 V to 6 V
3 V to 15 V
1.8 V to 15 V
TDA2822M
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Figure 21 : 3V St er eo Cassette Player wit h Motot Speed Cont r ol
TDA2822M
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OUTLINE AND
MECHANICAL DATA
DIM. mm inch
MIN. TYP. MAX. MIN. TYP. MAX.
A 3.32 0.131
a1 0.51 0.020
B 1.15 1.65 0.045 0.065
b 0.356 0.55 0.014 0.022
b1 0.204 0.304 0.008 0.012
D 10.92 0.430
E 7.95 9.75 0.313 0.384
e2.54 0.100
e3 7.62 0.300
e4 7.62 0.300
F 6.6 0.260
I 5.08 0.200
L 3.18 3.81 0.125 0.150
Z 1.52 0.060
Minidip
TDA2822M
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Information furnished is bel i eved to be accurate and reliabl e. However, ST M i croelectronics assumes no responsibility f or the cons equences
of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted
by implication or otherwise under any patent or pat ent rights of STMicroelectronics. Specifications mentioned in this publicat ion are subject t o
change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not
authorized for use as critical components in life support devices or systems without expres s written approval of STMicroelectronics.
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TDA2822M
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