Surface Mount GaAs

Tuning Varactors

MA46 Series

V3.00

M/A-COM, Inc.

North America:

Tel. (800) 366-2266

s

Asia/Pacific: Tel. +81 3 3263 8761

s

Europe: Tel. +44 (1344) 869 595

Fax (800) 618-8883

Fax +81 3 3263 8769

Fax +44 (1344) 300 020

1

Specifications Subject to Change Without Notice.

Features

q

Low Cost

q

Surface Mount Packages

q

Very High Quality Factor

q

Constant Gamma Abrupt Junction: 0.5

Hyperabrupt Junctions: 0.75, 1.25 and 1.5

q

Capacitance Ratio to 10:1

q

Case Style 1056 is Hermetic and may be

Screened to JANTX levels

q

Tape and Reel Packaging Available

Description

M/A-COM offers four families of low cost surface mount

gallium arsenide tuning varactors. All families have sili-

con nitride protected junctions for low leakage current

and high reliability.

abrupt junctions with constant gamma of 1.5 from 2 to 12

volts and high quality factor.

abrupt junctions with constant gamma of 1.25 from 2 to

20 volts and higher quality factor.

abrupt junctions with constant gamma of 0.75 from 0 to

20 volts and very high quality factor.

tions with constant gamma of 0.5 from 0 to 30 volts and

the highest quality factor.

Applications

constant gamma hyperabrupt GaAs tuning varactors is

designed for wide bandwidth VCOs and voltage tuned

filters where limited bias voltage is available. These var-

actors have greatest capacitance change versus voltage at

the cost of slightly lower quality factor than the other

families of GaAs varactors.

of constant gamma hyperabrupt GaAs tuning varactors

has the largest capacitance ratio of the families of GaAs

varactors and high quality factor. These diodes are very

well suited for wide bandwidth VCOs and VTFs where

the optimum combination of very wide tuning range and

high quality factor is required.

of constant gamma hyperabrupt GaAs tuning varactors

has quality factor approaching that of abrupt junction var-

actors, but higher capacitance change versus tuning volt-

age. These diodes are very well suited for narrower

bandwidth VCOs and VTFs where wide tuning range and

very high quality factor are required.

constant gamma abrupt GaAs tuning varactors has the

highest quality factor. These diodes are very well suited

for narrower bandwidth VCOs and VTFs where highest

quality factor is of paramount concern.

Case Styles

1056

1088