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KA8512D Datasheet

  • KA8512D

  • COMPANDOR

  • 6頁

  • SAMSUNG   SAMSUNG

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KA8512
COMPANDOR
INTRODUCTION
Compandor is a composite word of compressor and expander.
It is used for maintaining dynamic range and improving
of S/N ratio, and generally called as a noise reduction
system or automatic gain control system.
KA8512 consists of compressor, expander, mic amp,
Iimiter, ALC(automatic level control) and mute logic.
14-DIP-300
FEATURES
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Operating voltage range : 2 ~ 6V
Included ALC circuit
Easy gain control to use external component
Included mute function
14-SOP-225B
ORDERING INFORMATION
Device
KA8512
KA8512D
Package
14-DIP-300
14-SOP-225B
Operating Temperature
-20擄C ~ + 70擄C
BLOCK DIAGRAM
EPI
ERC
EMUTE
CMUTE
2
15K
3
RECTIFIER
30K
5
6
MUTE LOGIC
10K
GAIN CELL
G
10K
_
4
V
REF
+
SUM AMP
+
LIMITER
V
REF
_
24K
30K
10K
15K
GAIN CELL
G
ALC
15K
+
MIC AMP
51K
EO
+
CO
V
REF
3.3K
12
_
125K
125K
_
30K
9
8
11
CPI-
CPI+
AGIC
13
ALC
BIAS CIRCUIT
RETIFIER
7
GND
14
V
CC
1
V
REF
10
CRC

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