PJ2822M
Dual Low-Voltage Power Amplifier
T
he PJ2822M is a monolithic integrated circuit in 8 lead
Minidip package.It is intended for use as dual audio
DIP-8
SOP-8
power amplifier in portable cassette player and radios.
FEATURES
Supply Voltage Down to 1.8V
Low Crossover Distorsion
Low Quiescent Current
Bridge or Stereo Configuration
ORDERING INFORMATION
Device
PJ2822MCD
PJ2822MCS
Operating Temperature
-20℃ ~ +85℃
Package
DIP-8
SOP-8
Pin : 1.Compensation
2.Voltage Feedbacl
3.Current Sense
4.RT/CT
5.Gnd
6.Output
7.Vcc
8.Vref
ABSOLUTE MAXIMUM RATINGS
Parameter
Supply Voltage
Peak Output Current
Total Power Dissipation at Tamb = 50℃
Tcase = 50℃
Storage and Junction Temperature
Symbol
Vs
Io
Ptot
Tstg,Tj
Value
16
1
1
1.4
-40 ~ +150
Unite
V
A
W
W
℃
THERMAL DATA
Parameter
Thermal Resistance Junction-ambient
Thermal Resistance Junction-pin(4)
Max.
Max.
Symbol
Rthj-amb
Rthj-case
Value
100
70
Unite
℃/W
℃/W
SCHEMATIC DIAGRAM
1-8
2002/01.ver.A
PJ2822M
Dual Low-Voltage Power Amplifier
ELECTRICAL CHARACTERISTICS
(Vs=6V,Tamb=25
℃,
unless otherwise specified)
Symbol
Paramete
STEREO(test
circuit of Figure 1)
Suppy Voltage
Quiescent Ouput Voltage
Quiescent Drain Current
Input Bias Current
Outut Power (each channel)
(f =1KHz, d =10%)
Vs
Vo
Vs = 3V
Id
Ib
Po
R
L
= 32Ω
Vs = 9V
Vs = 6V
Vs = 4.5V
Vs = 3V
Vs = 2V
Vs = 6V
Vs = 9V
Vs = 6V
Vs = 6V
Vs = 4.5V
Vs = 3V
Po = 40mW
Po = 75mW
Po = 150mW
1.8
2.7
1.2
6
100
300
120
60
20
5
220
1000
380
650
320
110
0.2
0.2
0.2
39
15
V
V
V
mA
nA
mW
Test Conditions
Min.
Typ.
Max.
Unit
9
90
15
170
300
450
R
L
= 16Ω
R
L
= 8Ω
R
L
= 4Ω
Distortion (f =1KHz)
d
Close Loop Voltage Gain
Channel Balance
Input Resistance
Total Input Noise
Supply Voltage Rejection
Channel Separation
BRIDGE(test
circuit of Figure 2)
Supply Voltage
Quiescent Drain Current
Output Offset Voltage
(between the outputs)
Input Bias Current
Output Bias Current
Gv
△Gv
Ri
θ
N
SVR
Cs
R
L
= 32Ω
R
L
= 16Ω
R
L
= 8Ω
F =1KHz
F =1KHz
Rs = 10KΩ
36
100
41
±1
%
%
%
dB
dB
KΩ
μV
μV
dB
dB
B = Curve A
B =22Hz to 22KHz
F =100Hz, C1 = C2 = 100μF
24
2
2.5
30
50
F =1KHz
Vs
Id
Vos
Ib
Po
R
L
=
∞
R
L
= 8Ω
1.8
6
15
9
+/-50
V
mA
mV
nA
mW
Output Power (f=1KHz,d=10%)
Closed Loop Voltage Gain
Input Resistance
Total Input Noise
Supply Voltage Rejection
Power Bandwidth (-3dB)
d
Gv
Ri
e
N
SVR
B
Vs = 9V
Vs = 6V
Vs = 4.5V
Vs = 3V
Vs = 2V
Vs = 9V
R
L
= 16Ω
Vs = 6V
Vs = 3V
R
L
= 8Ω
Vs = 6V
Vs = 4.5V
Vs = 3V
R
L
= 4Ω
Vs = 4.5V
Vs = 3V
Vs = 2V
Po =0.5W, R
L
= 8Ω, f =1KHz
F =1KHz
F =1KHz
Rs =10KΩ
F =100Hz
R
L
= 8Ω, Po =1W
R
L
= 32Ω
320
50
900
200
100
1000
400
200
65
8
2000
800
120
1350
700
220
1000
350
80
0.2
39
%
dB
KΩ
μV
μV
dB
KHz
100
B =Curve A
B = 22Hz to 22KHz
2.5
3
40
120
2-8
2002/01.ver.A
PJ2822M
Dual Low-Voltage Power Amplifier
Figure 1. TEST CIRCUIT (Stereo)
Figure 2. TEST CIRCUIT (Bridge)
Figure 3. TYPICAL APPLICATION IN
PORTABLE PLAYERS
Figure 4. LOW COST APPLICATION IN
PORTABLE PLAYERS
(using only one 100μF output capacitor)
3-8
2002/01.ver.A
PJ2822M
Dual Low-Voltage Power Amplifier
Figure 5. PORTABLE RADIO CASSETTE PLAYERS
Type
TDA7220
TDA7211A
TEA1330
TDA7282
PJ2822M
Supply Voltage
1.5V to 6V
1.2V to 6V
3V to 6V
1.5V to 6V
1.8V to 6V
Figure 6. PORTABLE STEREO RADIO
Type
TDA7220
TDA7211A
TEA1330
PJ2822M
Supply Voltage
1.5V to 6V
1.2V to 6V
3V to 6V
1.8V to 6V
4-8
2002/01.ver.A
PJ2822M
Dual Low-Voltage Power Amplifier
Figure 7. APPLICATION IN PORTABLE RADIO RECEIVERS
Figure 8. 3V STEREO CASSETTE PLAYER WITH MOTOR SPEED CONTROL
5-8
2002/01.ver.A
京公网安备 11010802033920号
EEWORLD
