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PDF MA4ST079 Data sheet ( Hoja de datos )

Número de pieza MA4ST079
Descripción Surface Mount Hyperabrupt Wide-Band Tuning Varactors
Fabricantes Tyco 
Logotipo Tyco Logotipo



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Surface Mount Hyperabrupt
Wide-Band Tuning Varactors
Features
q Low Cost
q Very High Capacitance Ratio from 1 to 8 Volts
q Surface Mount Package
q High Quality Factor
q Useful for Battery Applications
q SPC Monitored Ion Implantation for Excellent
C-V Repeatability
q Singles and Common Cathode Pairs
q Available in Tape and Reel
SOT-23
MA4ST079 thru 083
V3.00
Description
The MA4ST079 through MA4ST083 series of silicon
hyperabrupt junction tuning varactors is produced with
ion implantation and advanced epitaxial growth tech-
niques. These diodes have thermal oxide passivation, and
feature very high capacitance ratio and quality factor.
They are well suited for use from the sub-HF through
UHF frequency range. The standard capacitance toler-
ance is ±10%, with tighter tolerances available.
Capacitance matching at one or more bias voltages is
also available.
Applications
The MA4ST079 through MA4ST083 series of hyperabrupt
junction tuning varactors is suggested for usage where a
large frequency change is required with only a small
change in tuning voltage.
This series is appropriate for usage in wide band voltage
controlled oscillators and voltage controlled filters which
require the largest rate of change of capacitance with
voltage. The large change in capacitance from 1 to 8
volts makes them very attractive for battery operated or
other systems with limited available control voltage.
The MA4ST079 through MA4ST083 family can be used in
VCOs and VTFs from approximately 100 KHz through the
UHF frequency band.
Configurations
TOP VIEW
(SINGLE)
(COMMON CATHODE PAIR)
Specifications Subject to Change Without Notice.
M/A-COM, Inc.
North America: Tel. (800) 366-2266
Fax (800) 618-8883
s Asia/Pacific: Tel. +81 3 3263 8761
Fax +81 3 3263 8769
1
s Europe: Tel. +44 (1344) 869 595
Fax +44 (1344) 300 020

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