@vic
AV2025
Copyright Avic Electronics Corp.
1
Website:
http://www.avictek.com
STEREO AUDIO AMPLIFIER
DESCRIPTION
The AV2025 is a monolithic integrated circuit
consisting of a 2 channel power amplifier. It is
suitable for stereo and bridge amplifier application
of radio cassette tape recorders.
FEATURES
Bridge or stereo configuration.
Few External components
High Channel isolation
Voltage range : 3V to 12V
Power on/off no noise
Voltage gain up to 45dB(Adjustable with external resistor)
Soft clipping
Internal Thermal protection
Working Voltage down to 3V
BLOCK DIAGRAM
PIN CONFIGURATION
DIP-16
AUX
BTL
2OUT
2BS
2GNDpp
2GNDp
2FB
2IN
FIL
VCC
1OUT
1BS
1GNDp
1GNDp
1FB
1IN
GND
Temp.
protent
Startup
Circuit
Off-Coupling
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
@vic
AV2025
Copyright Avic Electronics Corp.
2
Website:
http://www.avictek.com
ORDERING INFORMATION
PIN
SYMBOL
PIN
SYMBOL
1
AUX
BTL
9 GND
2
2OUT
10 1IN
3
2BS
11 1FB
4
2GNDp
12 1GNDp
5
2GNDp
13 1GNDp
6
2FB
14 1BS
7
2IN
15 1OUT
8
FIL
16 VCC
ABSOLUTE MAXIMUM RATINGS (Tamb=25C)
PARAMETER
SYMBOL
VALUE
UNIT
Supply Vcc 15
V
Output Peak Current
Iop 1.5 A
JunctionTemperature Tj
150C
C
Storage Temperature
Ts
-40C ~+150C
C
ELECTRICAL CHARACTERISTICS
(TA=+25,Vcc=9V,f=1KHz,RL=8,unless otherwise specified).
PARAMETER SYMBOL
TEST CONDITIONS
MIN TYP
MAX
UNIT
Supply Voltage
Vcc 3
-
12
V
Quiescent
Current
Icc Vi=0,Stereo
-
40
50
mA
Quiescent
Output Voltage
Vo(DC) 4.0
4.5
5.0
V
Stereo 43
45
47
Closed Loop
Voltage Gain
Av
Bridge
Vi=-45dBm
49 51 53
dB
Channel Balance
CB Stereo
-1
0
+1
dB
Stereo -
0.3
1.5
Toltal Harmonic
Distortion
THD
Bridge
Po=250mW,f=1kHz,
RL=4,Vcc=9V
- 0.5 -
%
@vic
AV2025
Copyright Avic Electronics Corp.
3
Website:
http://www.avictek.com
APPLICATION
CIRCUIT
( 1.STEREO )
PARAMETER SYMBOL
TEST CONDITIONS
MIN TYP
MAX
UNIT
Input Resistance
Zi
30
K
Channel
Separation
CSR
Rg=10K,f=1kHz,
RL=4,Po=1W
40 55 - dB
Ripple Rejection
Srip
Rg=0,frip=100Hz,
Vrip=150mV,Av=45dB
40 46 - dB
Rg=0
- 1.5 3
Input Noise
Voltage
VNI
BW:20Hz-
20kHz,Av=200
Rg=10K
- 3 6
uV
Vcc=9V,RL=4
1.7 2.3 -
Vcc=6V,RL=8
- 1.3 -
Vcc=6V,RL=4
0.7 1.0 -
Vcc=6V,RL=8
- 0.6 -
Stereo
Vcc=3V,RL=4
- 0.1 -
Vcc=9V,RL=8
- 4.7 -
Output Power
Po
THD=
10%,f=
1kHz
Bridge
Vcc=6V,RL=4
- 2.8 -
W
AV2025
@vic
AV2025
Copyright Avic Electronics Corp.
4
Website:
http://www.avictek.com
( 2.BRIDGE)
TYPICAL PERFORMANCE CHARACTERISTICS
AV2025
Distortion Versus Output Power
Distortion Versus Output Power
Distortion and Output Frequency
Stereo Output Power and Supply Voltage
10
1
1
0
0.2
0.4
0.6
0.8
1.0
d(%)
1.2
P0(W)
Vcc=6V
RL=40
0.1
d(%)
Vcc=6V
RL=8
0
0.2
0.4
0.6
0.8
1.0
1.2
P0(W)
d(%)
10
1
0.1
10
100
1K
10K
100K
F(Hz)
0
Vcc=9V
RL=9
P0=1 5W
2
4
6
8
0
4
8
12
Vcc(V)
f=1KHz
d=10%
RL=4
P0(W)
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