Tel: 886-2-66296288
Fax: 886-2-29174598
URL: http://www.princeton.com.tw
2W × 2 Class AB Audio Power Amplifier
PT2303
ELECTRICAL CHARACTERISTICS
(Unless otherwise specified, VDD=5V, bandwidth=22~22KHz)
Parameter
Supply voltage
Operating current
Two channels gain error
THD+N
Symbol
VDD
Is
Gerr
THD
Condition
SE Mode
BTL Mode
Shutdown=ON
Ri=Rf=20KΩ
Po=0.2W, RL=4Ω
Po=1W, RL=4Ω
Po=50mW, RL=32Ω
THD=1%, RL=8Ω
THD=10%, RL=8Ω
BTL
THD=1%, RL=4Ω
THD=10%, RL=4Ω
THD=1%, RL=32Ω
SE
THD=10%, RL=32Ω
A-Weighted
A-weighted
+OUT ~ -OUT
BTL
F=1KHz
SE
BTL
F=100Hz
SE
Overheat close
-
Back to work
-
VDD=3~5V
Shutdown ON
Shutdown pin
Shutdown OFF
SE
VDD=3~5V
BTL
Min.
3
4
6
0.1
-1
0.03
0.06
0.03
1.0
1.2
1.4
1.8
80
100
95
-
2
80
80
60
40
-
85
0.45
-
0.75
-
Typ.
5
6
8
0.5
0
0.05
0.08
0.05
1.1
1.4
1.6
2.0
85
110
100
35
10
90
85
70
45
130
100
0.6
0.15
0.8
0.2
Max.
6
10
12
1
+1
0.07
0.15
0.08
1.2
1.6
1.8
2.1
90
120
-
50
30
100
95
80
50
140
-
-
0.2
-
0.3
Unit
V
mA
µA
dB
%
W
Power output
Po
mW
dB
µV
mV
dB
dB
℃
VDD
VDD
Signal-to-Noise
Residual noise
Output offset
Channel separation
Power Signal-to-Noise
repel rate
Temperature protect
Shutdown voltage
SE/BTL voltage
SNR
Vno
Voff
CS
PSRR
TH
VSD
VSB
PT2303 V1.2
-8-
December, 2007
PTC [ PRINCETON TECHNOLOGY CORP ]
