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參數(shù)資料
| 型號： | SA572F |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 運(yùn)動控制電子 |
| 英文描述： | Programmable analog compandor |
| 中文描述： | COMPANDER, CDIP16 |
| 文件頁數(shù)： | 7/8頁 |
| 文件大?。?/td> | 125K |
| 代理商： | SA572F |
(7,9)
BUFFER
V
REF
R1
6.8k
G
R4
RDC1
RDC2
9.1k
CDC
10
μ
F
9.1k
D1
D2
A1
1R3
C1
1k
(6,10)
R5
(5,11)
(2,14)
(4,12)
CR
CA
1
μ
F
(8)
(3,13)
R2
(16)
C
IN3
2.2
μ
F
V
CC
.1
μ
F
C2
2.2
μ
F
C
IN1
V
IN
10
μ
F
C
IN2
2.2
μ
F
V
OUT
–
+
Figure 5. Basic Compressor Schematic
Philips Semiconductors RF Communications Products
Product specification
NE/SA572
Programmable analog compandor
October 7, 1987
8
Basic Compressor
Figure 5 shows the hook-up of the circuit as a
compressor. The IC is put in the feedback
loop of the OPA A
1
. The system gain
expression is as follows:
V
OUT
V
IN
R
DC1
, R
DC2
, and CDC form a DC feedback
for A
1
. The output DC level of A
1
is given by
I
1
2
R
2
R
1
R
3
V
IN
(
AVG
)
1
2
(7)
V
ODC
V
REF
1
R
DC
1
R
DC
2
R
4
(8)
V
B
R
DC
1
R
DC
2
R
4
The zener diodes D
1
and D
2
are used for
channel overload protection.
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 6
shows the system level diagram for
reference.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SA572N | 功能描述:音頻放大器 Dual Channel Hi Perf RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| SA572NG | 功能描述:音頻放大器 Dual Channel Hi Perf Compandor Ind. Temp RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| SA575 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Low voltage compandor |
| SA5751D | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Cell-Phone Circuit |
| SA5752 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Audio processor - companding, VOX and amplifier section |
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