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Datasheet: AV2822 (Avic Technology)

Dual Low Voltage Power Amplifier

 

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Avic Technology
@vic
AV2822
Copyright Avic Electronics Corp.
1
Website:
http://www.avictek.com
DUAL LOW VOLTAGE POWER AMPLIFIER

DESCRIPTION
The AV2822 is a monolithic integrated circuit in (8-Pin)
dip plastic dual in line package,intended for use as dual
audio power amplifier in portable cassette players and
radios.
FEATURES
Supply voltage down to 3V.
Low crossover distortion.
Low quiescent circuit current.
Bridge or stereo configuration.


PIN CONFIGURATIONS

BLOCK DIAGRAM
ORDERING INFORMATION
PIN
SYMBOL
PIN
SYMBOL
1
1OUT
5 2IN-
2
VCC
6 2IN+
3
2OUT
7 1IN+
4
GND
8 1IN-
NF1
INPUT1
NF2
Vcc
GND
1
2
3
4
5
6
7
8
INPUT2
OUTPUT2
OUTPUT1
INPUT1
NP1
INPUT2
NP2
Vcc
GND
OUTPUT1
OUTPUT2
@vic
AV2822
Copyright Avic Electronics Corp.
2
Website:
http://www.avictek.com
ABSOLUTE MAXIMUM RATINGS
(Tamb=25C,
unless otherwise specified
)
PARAMETER
SYMBOL
MIN
MAX
UNIT
Supply VCC
-
15
V
Output current
Io
-
1
A
TA=50C
- 1
Power Dissipation
Tcase=50C
PD
- 1.4
W
Operatiing Temperature
Tamb
-20
70
C
Storage Temperature
Tstg
-40
150
C
ELECTRICAL CHARACTERISTICS
(
stereo configuration)
(Vcc=6V,Tamb=25
C
,unless otherwise specified).
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP MAX UNIT
Supply Voltage
Vcc
1.8
-
15
V
-
2.7
-
Quiescent Output
Voltage
Vo
Vcc=3V -
1.2
-
V
Quiescent Drain
Current
Icc
-
6
9
mA
Input Bias Current
Iba
-
100
-
nA
Vcc=9V - 300 -
Vcc=6V 90 120 -
Vcc=4.5V - 60 -
Vcc=3V 15 20 -
RL=32
Vcc=2V - 5 -
RL=16
Vcc=6V 170 220 -
Vcc=9V - 1000 -
RL=8
Vcc=6V 300 380 -
Vcc=6V 450 650 -
Vcc=4.5V - 320 -





Output Power
Po
F=1kHz,
THD=10
%
RL=4
Vcc=3V - 110 -
mW
Toltal Harmonic
Distortion
THD
Po=0.5W,f=1kHz,RL=8 ,Vcc=9V
- 0.3 - %
Closed Loop
Voltage Gain
Avf F=1kHz -
40
-
dB
Channel Balance
Av
-
-
1
dB
Input Resistance
Ri F=1kHz
100
-
-
K
Rs=10 K -
2
-
Total Input Noise
Vni
Rs=10 K ,B=22Hz-22kHz -
3
-
uV
Ripple Rejection
Srip F=100Hz,C1=C2=100uF
24
30
-
dB
Channel
Separation
CSR F=1kHz, -
50
-
dB
@vic
AV2822
Copyright Avic Electronics Corp.
3
Website:
http://www.avictek.com
ELECTRICAL CHARACTERISTICS
(
BTL configuration)
(Vcc=6V,Tamb=25
C
,unless otherwise specified).
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP MAX UNIT
Supply Voltage
Vcc
1.8
-
15
V
Quiescent Drain
Current
Icc RL= -
6
9
mA
Output Offset
Voltage
Vos RL=8 -50
-
50
mV
Input Bias
Current
Iba -
100
-
nA
Vcc=9V - 1000 -
Vcc=6V 320 400 -
Vcc=4.5V - 200 -
Vcc=3V 50 65 -
RL=32
Vcc=2V - 8 -
Vcc=9V - 2000 -
RL=16
Vcc=3V - 120 -
Vcc=6V 900 1350 -
Vcc=4.5V - 700 -
RL=8
Vcc=3V - 220 -
Vcc=4.5V - 1000 -
Vcc=3V 200 350 -






Output Power
Po
F=1kHz,
THD=10
%
RL=4
Vcc=2V - 80 -
mW
Toltal Harmonic
Distortion
THD
Po=0.5W,f=1kHz,RL=8
- 0.2 - %
Closed Loop
Voltage Gain
Avf F=1kHz -
40
-
dB
Input Resistance
Ri F=1kHz
100
-
-
K
Rs=10 K
- 2.5 -
Total Input Noise
Vni
Rs=10 K ,B=22Hz-22kHz
- 3 -
uV
Ripple Rejection
Srip F=100Hz,C1=C2=100uF -
40
-
dB
Bandwith
BWp Po=1W,
RL=8 -
120
-
kHz















@vic
AV2822
Copyright Avic Electronics Corp.
4
Website:
http://www.avictek.com

TEST CIRCUIT
1. STEREO

2.
BRIDGE
@vic
AV2822
Copyright Avic Electronics Corp.
5
Website:
http://www.avictek.com


TYPICAL PERFORMANCE CHARACTERISTICS




SCHEMATIC DIAGRAM
SUPPLY VOLTAGE (V)
FREQUENCY (Hz)
40
10
30
100 300
1000 3000
0
10
20
30
C1=C2=22F
C1=C2
=100F
RIPPL
E REJ
E
CTION (
d
B)
QUIESCENT CURRENT (
m
A)
0
4
8
12
16
2
4
6
8
OUTPUT2
OUTPUT1
NF2
GND
OUT2
Vcc
OUT1
NF1
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