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U4087B Datasheet(PDF) 6 Page - TEMIC Semiconductors

Part # U4087B
Description  Low Voltage Voice Switch Interface Circuit for Hands-free Operation in Telephone
PDF  8 Pages
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Manufacturer  TEMIC [TEMIC Semiconductors]
Direct Link  http://www.temic.de
Logo TEMIC - TEMIC Semiconductors

U4087B Datasheet(HTML) 6 Page - TEMIC Semiconductors

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U4087B
TELEFUNKEN Semiconductors
Rev. A1, 09-Sep-96
Preliminary Information
6 (8)
Electrical Characteristics
Tamb = + 25°C, VS = 5.0 V, CD
v 0.8 V, unless otherwise specified
Parameters
Test conditions / Pin
Symbol
Min.
Typ.
Max.
Unit
Power supply
Supply current
VB = 6.5 V, CD = 0.8 V
VB = 6.5 V, CD = 2.0 V
IB
1.0
60.0
2.0
150.0
mA
mA
CD input resistance
VB = VCD = 6.5 V
RCD
50.0
90.0
k
W
CD input voltage
– High
– Low
VCDH
VCDL
2.0
0.0
VB
0.8
V
Attenuator control
CT voltage
Pin 12 – VM
R mode
Idle mode
T mode
VCT
+ 240.0
0.0
– 240.0
mV
CT source current
R mode
ICTR
– 85.0
– 60.0
– 40.0
mA
CT sink current
T mode
ICTT
+ 40.0
+ 60.0
+ 85.0
mA
CT idle current
ICTS
0.0
mA
Level detectors and background noise monitor
Source current
at RLO1, RLO2, TLO1,
TLO2
ILSO
– 2.0
mA
Sink current
at RLO1, RLO2, TLO1,
TLO2
ILSK
4.0
mA
CPT output resistance
IO = 1.0 mA
RCP
100
W
CPT leakage current
ICPLK
– 0.2
mA
Ordering Information
Type
Package
U4087B-FP
SO16



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