MA4ST300 Series
Low-Voltage / Wide Band Si Hyperabrupt Varactors
Rev. V6
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
Absolute Maximum Ratings
1,2
@ T
A
=+25 °C (Unless Otherwise Noted)
Parameter
Reverse Voltage
Forward Current
Total Power Dissipation
Operating Temperature
Storage Temperature
Absolute Maximum
12 V
50 mA
250 mW
-55 °C to +125 °C
-55 °C to +125 °C
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.
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
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.
Typical Device Selection by Frequency
320
330
340
350
Active Pagers
RoHS Compliant Parts
Part Number
MA4ST320
MA4ST330
MA4ST340
MA4ST350
RoHs Compliant Part Number
MAVR-000320
JCT
NMT
CT2
SMR
PDC
GSM
IS-136/95
NMT
TACS
AMPS
PCS
GPS
DCS1800
PHP
DECT
WLAN
MAVR-000330
MAVR-000340
MAVR-000350
0.25
0.5
0.75
1.0
FREQUENCY (GHz)
2.0
3.0
1
Specifications are subject to change without prior notification
ADVANCED:
Data Sheets contain information regarding a product M/A-COM Technology Solutions
•
North America
Tel: 800.366.2266 •
Europe
Tel: +353.21.244.6400
is considering for development. Performance is based on target specifications, simulated results,
•
India
Tel: +91.80.4155721
•
China
Tel: +86.21.2407.1588
and/or prototype measurements. Commitment to develop is not guaranteed.
Visit www.macomtech.com for additional data sheets and product information.
PRELIMINARY:
Data Sheets contain information regarding a product M/A-COM Technology
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.
M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make
Commitment to produce in volume is not guaranteed.
changes to the product(s) or information contained herein without notice.
MA4ST300 Series
Low-Voltage / Wide Band Si Hyperabrupt Varactors
Rev. V6
Electrical Specifications @ T
A
= +25 °C
Breakdown Voltage @ I
R
= 10
μ
A, V
b
= 12 V Minimum
Reverse Leakage Current @ V
R
=10V, I
R
= 100 nA Maximum
C
T 2
Part Number
Base
1
RoHS Compliant
Part Number Base
1
(pF)
f = 1 MHz, V
R
= 0.5 V
Min.
MA4ST320
MA4ST330
MA4ST340
MA4ST350
1.
2.
MAVR-000320-XXXXXX
MAVR-000330-XXXXXX
MAVR-000340-XXXXXX
MAVR-000350-XXXXXX
48.0
22.0
15.0
9.5
Capacitance
Ratio
(pF)
f = 1 MHz
V
R
= 3.0 V
Max.
19.0
9.0
6.5
4.5
Q Factor
C
T0.5
/C
T3.0
Typ.
3.2
3.2
3.2
3.2
f = 50 MHz
V
R
= 2.0 V
Min.
300
350
350
400
Nom.
58.0
26.0
18.5
11.8
Max.
63.0
30.0
21.0
13.5
The prefix defines package style, configuration and packaging information. Contact representative for complete part identification.
Capacitance @ 1 MHz
Spice Model
Intrinsic Diode
Model:
N = 1.1
CJ0=(see table below)
VJ = (see table below)
FC = 0.5
BV = 12.0 V
M = (see table below)
Rs
Cp
Package
Parasitics
Cj
Parasitics:
Cp= 0.15 pF
Ls= 1.4 nH
Ls
Part No.
MA4ST320
MA4ST330
MA4ST340
MA4ST350
CJ0 (pF)
77.4
33.9
25.3
15.7
VJ (V)
11.71
8.91
14.25
14.55
M
6.51
5.15
7.41
7.26
Specifications are subject to change without prior notification
2
ADVANCED:
Data Sheets contain information regarding a product M/A-COM Technology Solutions
•
North America
Tel: 800.366.2266 •
Europe
Tel: +353.21.244.6400
is considering for development. Performance is based on target specifications, simulated results,
•
India
Tel: +91.80.4155721
•
China
Tel: +86.21.2407.1588
and/or prototype measurements. Commitment to develop is not guaranteed.
Visit www.macomtech.com for additional data sheets and product information.
PRELIMINARY:
Data Sheets contain information regarding a product M/A-COM Technology
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.
M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make
Commitment to produce in volume is not guaranteed.
changes to the product(s) or information contained herein without notice.
MA4ST300 Series
Low-Voltage / Wide Band Si Hyperabrupt Varactors
Rev. V6
Typical Performance Curves
Total Capacitance vs. Reverse Voltage at 1 MHz
100
MA4ST320
Nominal Q at 50 MHz vs. Reverse Voltage
1000
MA4ST330
Total Capacitance (pF)
MA
4ST340
MA4ST340
10
MA4ST350
Nominal Q
MA
4ST350
MA
4ST330
MA
4ST320
1
0.1
1
Reverse Voltage (V)
10
100
0.1
1
Reverse Voltage (V)
10
Nominal Change in Capacitance with temperature
900
700
TCC(PPM/°C)
500
300
100
0
1
2
3
4
5
6
Reverse Voltage (V)
3
Specifications are subject to change without prior notification
ADVANCED:
Data Sheets contain information regarding a product M/A-COM Technology Solutions
•
North America
Tel: 800.366.2266 •
Europe
Tel: +353.21.244.6400
is considering for development. Performance is based on target specifications, simulated results,
•
India
Tel: +91.80.4155721
•
China
Tel: +86.21.2407.1588
and/or prototype measurements. Commitment to develop is not guaranteed.
Visit www.macomtech.com for additional data sheets and product information.
PRELIMINARY:
Data Sheets contain information regarding a product M/A-COM Technology
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.
M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make
Commitment to produce in volume is not guaranteed.
changes to the product(s) or information contained herein without notice.
MA4ST300 Series
Low-Voltage / Wide Band Si Hyperabrupt Varactors
Rev. V6
Case Styles
SOD-323 (Case Style 1141)
INCHES
C
F
D
G
E
MILLIMETERS
MIN.
⎯
⎯
⎯
0.25
0.08
1.6
1.15
2.3
DIM.
A
B
C
D
E
F
G
H
MIN.
⎯
⎯
⎯
0.010
0.003
0.063
0.045
0.091
MAX.
0.043
0.004
0.008
0.016
0.006
0.075
0.057
0.106
MAX.
1.1
0.1
0.2
0.4
0.15
1.9
1.45
2.7
H
B
A
SC-70, 3 Lead (Case Style 1146)
A
E
J
H
DIM.
A
B
10
°
M A X .
INCHES
MIN.
MAX.
0.071
0.045
0.071
0.047
0.010
0.031
0.000
0.004
0.004
0.087
0.053
0.094
0.057
0.016
0.039
0.004
0.007
0.010
MILLIMETERS
MIN.
MAX.
1.80
1.15
1.80
1.19
0.25
0.80
0.00
0.10
0.10
2.20
1.35
2.40
1.45
0.41
1.00
0.10
0.18
0.25
C
B
G
F
D
C
D
E
F
G
H
J
SC-79 (Case Style 1279)
DIM.
A
B
C
D
E
F
G
H
I
INCHES
MIN.
MAX.
0.020
0.003
0.006
0.010
0.059
0.043
0.011
0.037
typical
.028
0.028
0.008
0.010
0.014
0.067
0.051
0.012
0.043
.035
MILLIMETERS
MIN.
MAX.
0.50
0.08
0.15
0.25
0.08
1.50
0.28
0.94
0.71
0.71
0.20
0.25
0.36
0.15
1.30
0.30
1.09
0.89
Specifications are subject to change without prior notification
4
ADVANCED:
Data Sheets contain information regarding a product M/A-COM Technology Solutions
•
North America
Tel: 800.366.2266 •
Europe
Tel: +353.21.244.6400
is considering for development. Performance is based on target specifications, simulated results,
•
India
Tel: +91.80.4155721
•
China
Tel: +86.21.2407.1588
and/or prototype measurements. Commitment to develop is not guaranteed.
Visit www.macomtech.com for additional data sheets and product information.
PRELIMINARY:
Data Sheets contain information regarding a product M/A-COM Technology
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.
M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make
Commitment to produce in volume is not guaranteed.
changes to the product(s) or information contained herein without notice.
MA4ST300 Series
Low-Voltage / Wide Band Si Hyperabrupt Varactors
Rev. V6
Mounting Information
The illustration indicates the recommended mounting
pad configuration for the SC-79, SC70 3LD and
SOD-323 packages. Solder paste containing flux
should be screened onto the pads to a thickness of
0.005- 0.007 inches. The plastic package is placed
in position, firmly adhering to the solder paste.
Permanent attachment is performed by a reflow
soldering procedure during which the tab
temperature does not exceed +275
°C
and the body
temperature does not exceed +250
°C,
for standard
models and +260
°C
for the RoHS compliant
devices.
Please refer to Application Note M538 for surface
mounting instructions.
SC-79 (Case Style 1279)
0.020
0.50
0.020
0.50
0.053
1.35
Dimenstions: inches
mm
SOD-323 (Case Style 1141)
0.030
0.80
0.030
0.80
SC-70, 3 Lead (Case Style 1146)
0.030
0.80
0.030
0.80
0.030
0.80
.090
2.2
Dimenstions: inches
mm
0.075
1.9
0.030
0.80
0.030
0.80
Dimenstions: inches
mm
Specifications are subject to change without prior notification
5
ADVANCED:
Data Sheets contain information regarding a product M/A-COM Technology Solutions
•
North America
Tel: 800.366.2266 •
Europe
Tel: +353.21.244.6400
is considering for development. Performance is based on target specifications, simulated results,
•
India
Tel: +91.80.4155721
•
China
Tel: +86.21.2407.1588
and/or prototype measurements. Commitment to develop is not guaranteed.
Visit www.macomtech.com for additional data sheets and product information.
PRELIMINARY:
Data Sheets contain information regarding a product M/A-COM Technology
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.
M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make
Commitment to produce in volume is not guaranteed.
changes to the product(s) or information contained herein without notice.
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