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TK10651 Datasheet Preview

TK10651 Datasheet

LOW VOLTAGE COMPANDOR

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TK10651 pdf
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)
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.
10651M
TK10651
FILTER OUT 1
FILTER IN 2
COMP OUT 3
DATA IN 4
C-DFC 5
COMP RECT 6
COMP NF 7
COMP IN 8
COMP REF 9
GND 10
BLOCK DIAGRAM
20 VCC
19 EXP OUT
18 EXP RECT
17 DATA OUT
16 EXP NF
15 EXP IN
14 EXP REF
13 EXP MUTE
12 THROUGH
11 COMP MUTE
ORDERING INFORMATION
TK10651
Tape/Reel Code
Package Code
PACKAGE CODE
M: Surface Mount
TAPE/REEL CODE
TL: Tape Left
EXP NF
EXP IN
INPUT AMP
+ THROUGH
SW
EXP RECT
COMP IN
TO Vref
100 k
+ MIC AMP
COMP NF
3.3 k
51 k
THROUGH
SW
COMP MUTE
EXPANDER
30 k
+
TO Vref
SUM
AMP
30 k
30 k
SUM
AMP
+
TO Vref
GND
COMP REF
BUF
AMP
FILTER OUT
TO Vref
+
100 k
100 k
100 k
FILTER IN
COMP OUT
January 2000 TOKO, Inc.
Page 1



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TOKO

TK10651 Datasheet Preview

TK10651 Datasheet

LOW VOLTAGE COMPANDOR

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TK10651 pdf
TK10651
ABSOLUTE MAXIMUM RATINGS
Supply Voltage ......................................................... 10 V
Power Dissipation (Note 1) ................................ 410 mW
Junction Temperature .......................................... 150 °C
Operating Voltage Range .............................. 2.4 to 7.0 V
Input Frequency ................................................. 100 kHz
Storage Temperature Range ................... -55 to +150 °C
Operating Temperature Range .................. -20 to +70 °C
Lead Soldering Temp. (10 sec.) .......................... 235 °C
TK10651 ELECTRICAL CHARACTERISTICS
Test conditions: VCC = 3.0 V, f = 1.0 kHz, RL = 10 k, TA = 25 °C, unless otherwise specified.
SYMBOL
PARAMETER
TEST CONDITIONS
MIN TYP
ICC Supply Current
VTH Threshold Voltage
Compressor
No signal
Pins 11,12,13
4.00
1.15 1.30
ZINC
VINC
GC
GTC
Input Impedance
Standard Input Voltage
Gain Error
Through On/Off Difference
VOC = 300 mVrms
VIN = 0 dB, (Note 2)
VIN = -20 dB, (Note 2)
VIN = -40 dB, (Note 2)
VIN = 0 dB, Pin 12 grounded,
(Note 2)
90
8
-0.5
-1.0
-1.5
120
12.5
0
0
0
THDC
VNOC
ATTC
Total Harmonic Distortion
Output Noise Voltage
Mute Attenuation
VIN = 0 dB
Rg = 620 , (Note 2)
VIN = 0 dB, Pin 11 grounded,
(Note 2)
60
0.5
3.0
80
VLIMC
GVD
Limiting Voltage
Voltage Gain for DATA
Terminal
Pin 4 voltage = 300 mVrms
1.15 1.35
-0.5 0
V
OUT(MAX)D
Maximum Output Voltage for
DATA Terminal
THD = 10% Point
800 900
CTC Cross Talk
Exp VIN = 30 mVrms,
Rg = 620 , (Note 2)
Note 1: Power dissipation is 410 mW in free air. Derate at 3.3 mW/°C for operation above 25 °C.
Note 2: Evaluated by CCITT standard P.53 noise filter.
-35
MAX
6.50
1.45
UNITS
mA
V
17
+0.5
+1.0
+1.5
1.0
5.5
1.50
+0.5
k
mVrms
dB
dB
dB
%
mVrms
dB
VP-P
dB
mV
rms
-30 dB
Page 2
January 2000 TOKO, Inc.


Part Number TK10651
Description LOW VOLTAGE COMPANDOR
Maker TOKO
Total Page 12 Pages
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