SA7267 Datasheet, PDF (7/10 Pages) Silan Microelectronics Joint-stock – 2CH AUDIO POWER AMPLIFIER(20W X 2)

SA7267
ELECTRICAL CHARACTERISTICS CURVES
Quiescent current vs. supply voltage
48
45
42
39
36
33
30
4 6 8 10 12 14 16 18 20
VS(±V)
Output power vs. supply voltage
20
RL=8¡
F=1KHz
16
12
THD=10%
8
THD=1%
4
0
4 6 8 10 12 14 16 18 20
Vs(±V)
Quiescent current vs. pin 5 voltage
50
45
40
Vs=±20V
35
RL=8¡x 2
30
0V=+Vs
Vi=0
25
20
15
10
5
0
-7 -6 -5 -4 -3 -2 -1 0
Vpin 5(V)
Frequency response
1
-0.5
-2.0 ^Vs=±20V
RL=8.2¡
-3.5 _0dB=1W
-5.0
-6.5
-8.0
-9.5
-11.0
-12.5
-14.0
20
200
2,000 20,000
200,000
Freq(Hz)
THD vs. output power
1 ^Vs=±20V
RL=8.2¡
0.1
f=15KHz
f=100Hz
f=1KHz
0.01
0.001
0 2 4 6 8 10 12 14 16 18 20
Pout (W)
Attenuation vs. pin 5 voltage
180
160
140
120
F=1KHz
Vs=±20V
100
RL=8.2¡
80
0dB=1W
0V=+Vs
60
40
20
0
-7 -6 -5 -4 -3 -2 -1 0
Vpin 5(V)
(To be continued)
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:1.1 2006.05.25
Page 7 of 11