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TK10651MTL/10651 Datasheet

  • TK10651MTL/10651

  • LOW VOLTAGE COMPANDOR

  • 127.44KB

  • 12頁(yè)

  • TOKO   TOKO

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TK10651
LOW VOLTAGE COMPANDOR
FEATURES
s
Data and Voice Inputs
s
Data and Voice Outputs
s
Low Supply Current
s
Regulated Output
s
Wide Operating Voltage Range
s
Low Standby Current
s
Microphone Amplifier
s
IDC Circuit (Instantaneous Deviation Control)
TK10651
FILTER OUT
1
20
VCC
APPLICATIONS
s
Portable Instrumentation
s
Cordless Telephones
s
Handy Talkies
s
Interphones
s
Amateur Radio Transceivers
DESCRIPTION
TK10651 is a noise reduction IC developed mainly for
cordless phones. It is also used for voice and data
communications. It has a built-in compressor circuit to
increase the average modulation level and an expander
circuit to reduce the noise level. The expander restores the
original dynamics of the input signal. The result is a high
quality signal transmission with low noise. Among the
many functions included, analog switching of the input and
output signal is particularly useful in cordless telephones.
Separate data input and output are provided. The audio
signal path can be muted during data transmission. The
signal path used for data transmission bypasses the com-
pressor and expander circuits.
The TK10651 is available in the SSOP-20 (MFP20)
surface mount package.
FILTER IN
2
19
EXP OUT
COMP OUT
3
18
EXP RECT
DATA IN
4
17
DATA OUT
106
51M
C-DFC
5
16
EXP NF
COMP RECT
6
15
EXP IN
COMP NF
7
14
EXP REF
COMP IN
8
13
EXP MUTE
COMP REF
9
12
THROUGH
GND 10
11
COMP MUTE
BLOCK DIAGRAM
DATA OUT
EXP OUT
EXP REF
VCC
EXP NF
INPUT AMP
EXPANDER
30 k鈩?/div>
GND
ORDERING INFORMATION
+
TK10651
Tape/Reel Code
TO Vref
EXP RECT
TO Vref
100 k鈩?/div>
COMP IN
+
MIC AMP
THROUGH
SW
+
SUM
AMP
TO Vref
+
100 k鈩?/div>
COMP MUTE
100 k鈩?/div>
100 k鈩?/div>
30 k鈩?/div>
30 k鈩?/div>
+
Package Code
COMP NF
3.3 k鈩?/div>
51 k鈩?/div>
PACKAGE CODE
M: Surface Mount
TAPE/REEL CODE
TL: Tape Left
TO Vref
EXP MUTE
THROUGH
COMP RECT
January 2000 TOKO, Inc.
DATA IN
C-DCFB
+
EXP IN
THROUGH
SW
COMP REF
SUM
AMP
FILTER OUT
BUF
AMP
FILTER IN
COMP OUT
Page 1

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