参数资料
型号: SA572N
厂商: ON Semiconductor
文件页数: 11/12页
文件大小: 0K
描述: IC COMPANDOR 2CHAN GAIN 16-DIP
产品变化通告: Product Obsolescence 11/Feb/2009
标准包装: 25
类型: 压缩扩展器
应用: 自动电平控制,立体声扩展器
安装类型: 通孔
封装/外壳: 16-DIP(0.300",7.62mm)
供应商设备封装: 16-DIP
包装: 管件
SA572
http://onsemi.com
8
(7,9)
BUFFER
VREF
DG
A1
(6,10)
(5,11)
(2,14)
(4,12)
(8)
(3,13)
(16)
CIN3
VCC
10mF
.1mF
2.2mF
CIN1
VIN
10mF
1mF
2.2mF
CIN2
2.2mF
VOUT
+
Figure 7. Basic Compressor Schematic
R3
17.3kW
1kW
9.1kW
6.8kW
3.3kW
RDC1
R4
RDC2
CDC
C2
D1
D2
C1
R5
R1
CA
CR
R2
Basic Compandor System
The above basic compressor and expandor can be
applied to systems such as tape/disc noise reduction, digital
audio, bucket brigade delay lines. Additional system
design techniques such as bandlimiting, band splitting,
pre-emphasis, de-emphasis and equalization are easy to
incorporate. The IC is a versatile functional block to
achieve a high performance audio system. Figure 8 shows
the system level diagram for reference.
COMPRESSION
IN
EXPANDOR
OUT
REL LEVEL
ABS LEVEL
dB
dBM
3.0 V
547.6 mV
400 mV
100 mV
10 mV
1 mV
+29.54
+14.77
+12.0
0.0
20
40
60
80
+11.76
3.00
5.78
17.78
37.78
57.78
77.78
97.78
VRMS
100 mV
10 mV
2
1
2
Figure 8. SA572 System Level
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