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Low-Voltage / Wide Band Si Hyperabrupt Varactors
M/A-COM Products
Rev. V5
MA4ST300 Series
North America Tel: 800.366.2266 / Fax: 978.366.2266
Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300
Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298
Visit www.macom.com for additional data sheets and product information.
MA-COM Technical Solutions and its affiliates reserve the right to make changes to the
product(s) or information contained herein without notice.
ADVANCED: Data Sheets contain information regarding a product MA-COM Technical Solutions is
considering for development. Performance is based on target specifications, simulated results, and/
or prototype measurements. Commitment to develop is not guaranteed.
PRELIMINARY: Data Sheets contain information regarding a product MA-COM Technical Solutions
has under development. Performance is based on engineering tests. Specifications are typical.
Mechanical outline has been fixed. Engineering samples and/or test data may be available. Commit-
ment to produce in volume is not guaranteed.
Features
Surface Mount Packages (SC70 3LD, SC79,
SOD-323)
High Capacitance Ratio at Low Voltages
High Q at Low Voltages
SPC Process for Superior C-V Repeatability
Available as Single and Common Cathode Pairs
Tape and Reel Packaging
Designed for Commercial Wireless Applications
Also offering RoHS Compliant Equivalent Parts
Description
The
MA4ST300
series
are
ion-implanted,
hy-
perabrupt junction, silicon tuning varactors in SC79,
SC70 3LD, and SOD-323 surface mount packages.
This series of varactors is designed for high capaci-
tance ratio and low voltage operation. Each varactor
type has a better than 3:1 capacitance ratio between
0.5V and 3.0V.
Applications
The MA4ST300 series tuning varactors are useful
for wide band tuning and low phase noise applica-
tions where the supply voltage is limited to 5 volts or
less.
These varactors have been specifically de-
signed to cover wireless application bands up to the
2.4 GHz WLAN band.
Applications include VCOs
and voltage tuned filters.
Absolute Maximum Ratings
1,2
@ TA=+25 °C (Unless Otherwise Noted)
1. Operation of this device above any one of these parameters
may cause permanent damage.
2. Please refer to application note M538 for surface mounting
instructions
Parameter
Absolute Maximum
Reverse Voltage
12 V
Forward Current
50 mA
Operating Temperature
-55 °C to +125 °C
Storage Temperature
-55 °C to +125 °C
Total Power Dissipation
250 mW
Part Number
RoHs Compliant Part Number
MA4ST320
MAVR-000320
MA4ST330
MAVR-000330
MA4ST340
MAVR-000340
MA4ST350
MAVR-000350
0.25
0.5
0.75
1.0
2.0
3.0
350
FREQUENCY (GHz)
JCT
NMT
AMPS
TACS
NMT
IS-136/95
GSM
PDC
CT2
Active Pagers
DECT
PHP
DCS1800
WLAN
GPS
PCS
SMR
340
330
320
Typical Device Selection by Frequency
RoHS Compliant Parts
Specifications are subject to change without prior notification