ka8512 Samsung Semiconductor, Inc., ka8512 Datasheet

no-image

ka8512

Manufacturer Part Number
ka8512
Description
Compandor
Manufacturer
Samsung Semiconductor, Inc.
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
KA8512
Quantity:
11 500
Part Number:
KA8512
Manufacturer:
SEC
Quantity:
20 000
Part Number:
KA85120
Quantity:
30
Part Number:
ka8512D
Manufacturer:
TOSHIBA
Quantity:
6 219
Part Number:
ka8512D
Manufacturer:
ST
0
Part Number:
ka8512D
Manufacturer:
SIPEX
Quantity:
20 000
KA8512
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.
FEATURES
BLOCK DIAGRAM
Operating voltage range : 2 ~ 6V
Included ALC circuit
Easy gain control to use external component
Included mute function
CO
12
GND V
7
EPI
BIAS CIRCUIT
2
14
125K
15K
10K
CC
+
_
V
REF
1
RECTIFIER
GAIN CELL
ERC
3
V
125K
G
REF
LIMITER
10K
V
REF
_
+
30K
15K
15K
30K
ORDERING INFORMATION
SUM AMP
KA8512
KA8512D
Device
+
_
30K
GAIN CELL
RETIFIER
CRC
10
G
10K
24K
V
REF
EMUTE CMUTE
MUTE LOGIC
5
14-DIP-300
14-SOP-225B
14-DIP-300
14-SOP-225B
Package
51K
6
MIC AMP
_
+
ALC
3.3K
Operating Temperature
COMPANDOR
11
13
4
9
8
-20 C ~ + 70 C
EO
CPI-
CPI+
AGIC
ALC

Related parts for ka8512

ka8512 Summary of contents

Page 1

... Compandor is a composite word of compressor and expander 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. FEATURES Operating voltage range : ...

Page 2

... MICOM being transmitted to an user, and is connected to the RX mute terminal of MICOM. Expanding is executed if this terminal is high, and expander mute is exe- cuted low ALC KA8512 11 AGIC 5 10 CRC 6 9 CPI CPI+ Description =1V) used for supplying a constant voltage REF ...

Page 3

... KA8512 PIN DESCRIPTION (Continued) Pin No Symbol It is compressor mute terminal of a compandor. Mute block is used to avoid duplication of data transmission from MICOM 6 CMUTE (Between the base and hand set) with the voice signal connected to the TX mute terminal of MICOM. Compressing is executed if the terminal is high, and compressor mute is executed low ...

Page 4

... KA8512 ABSOLUTE MAXIMUM RATINGS Characteristic Maximum Supply Voltage Power Dissipation Operating Temperature Storage Temperature ELECTRICAL CHARACTERISTICS ( 1KHz Unless otherwise Specified) CC Characteristic Symbol DC Electrical Characteristics Operating Voltage V CC Operating Current I CC Compressor Part Reference Voltage V REF Standard Output Voltage V O(COMP) ...

Page 5

... KA8512 TEST CIRCUIT COMPANDOR + _ ...

Page 6

... KA8512 APPLICATION CIRCUIT Vcc REF Bias Circuit Gain Cell 10K Rectifier 15K 68K C4 R6 33uF R2 R4 68K 220K 68K C1 68nF TR1 C3 FROM RX 100nF OUTPUT C15 100nF 68K 300 68nF TO TX MODULATION C13 C11 C10 C12 100nF 22uF 1uF ...

Related keywords