MA46600 Series
GaAs High Q Abrupt Tuning Varactors
Features
•
•
•
•
•
Constant Gamma Abrupt Junction: 0.5
Highest Q
Large Capacitance Variation with Voltage
Custom Tailored Designs Available on Request
RoHS* Compliant
M/A-COM Products
Rev. V5
Absolute Maximum Ratings
1
@ T
A
=+25°C
Parameter
Operating Temperature
Storage Temperature
Reverse Voltage
Absolute Maximum
-65°C to +175°C
-65°C to +200°C
Breakdown Voltage
Cj < 1.0 pF max. @ 50 mW
Cj
≥
1.0 pF min. @ 100 mW
Description
The MA46600 series of microwave tuning varactors
is a family of abrupt junction gallium arsenide de-
vices featuring Q factors in excess of 8000. This
series is specifically designed for broadband high Q
tuning performance (up to 8000 at -4 volts and 50
MHz) from L through Ka band. Characteristics such
as high reliability, low leakage and close capaci-
tance tracking between diodes are typical of these
devices. Standard capacitance matching is ± 10%,
but closer matching is available upon request. All
diode types are available in a wide selection of ce-
ramic packages as well as in chip form.
Power Dissipation
(derate linearly to zero at 200°C)
1. Operation of this device above any one of these parameters
may cause permanent damage.The maximum storage and
operating temperature of the plastic ODS-1088 case style is
125°C.
Common Case styles
Applications
The MA46600 series of tuning varactors can be
used for both broad and narrow band tuning
through Ka-band. Typical applications include solid
state tuning of VCOs using transistors or Gunns as
well as voltage tunable filters and amplifier circuits.
The GaAs abrupt junction tuning varactors offer the
highest Q of any tuning varactors and are utilized in
high frequency applications where Q is premium.
134 Chip
Specifications subject to change without notice.
* Restrictions on Hazardous Substances, European Union Directive 2002/95/EC.
1
ADVANCED:
Data Sheets contain information regarding a product MA-COM Technical Solutions is
•
North America
Tel: 800.366.2266 / Fax: 978.366.2266
considering for development. Performance is based on target specifications, simulated results, and/
•
Europe
Tel: 44.1908.574.200 / Fax: 44.1908.574.300
or prototype measurements. Commitment to develop is not guaranteed.
•
Asia/Pacific
Tel: 81.44.844.8296 / Fax: 81.44.844.8298
PRELIMINARY:
Data Sheets contain information regarding a product MA-COM Technical Solutions
Visit www.macom.com for additional data sheets and product information.
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-
MA-COM Technical Solutions and its affiliates reserve the right to make changes to the
ment to produce in volume is not guaranteed.
product(s) or information contained herein without notice.
MA46600 Series
GaAs High Q Abrupt Tuning Varactors
Electrical Specifications @ T
A
= +25 °C
Gamma 0.5 Abrupt Tuning Varactors
Breakdown Voltage @ 10
μA
= 30 V minimum
Reverse Current @ 24 V = 100 nA maximum
Gamma = 0.48 - 0.50, VR = 0 to 30 V
Break-
down
Voltage
6
Vb
Ir=10 µA
(V)
MA46600
MA46602
MA46603
MA46604
1.
2.
30
30
30
30
M/A-COM Products
Rev. V5
Environmental Ratings
Temperature, Storage
Temperature, Cycling
Shock
Vibration
Constant Acceleration
Moisture Resistance
Method
1031
1051
2016
2056
2006
1021
Levels
See Maximum Ratings
5 cycles, -65 to + 150 C
500 g’s
15 g’s
20,000 g’s
10 days
Part
Number
Total
Total
Capaci-
Q
Capacitance
tance
1,2
Minimum
Ratio
1,2,4
+/-10%
Vr=4 V
(pF)
0.3
0.5
0.6
0.8
Typical Performance Curves
Vr=0 V
Vr=30 V
-
1.9
2.5
2.8
3.2
Vr=4 V
f=50 MHz
-
8000
7000
6500
6000
3.
4.
5.
6.
Capacitance is measured at 1 MHz on a bridge which has
been balanced with shielded test holders connected in
place but open circuited.
All GaAs tuning varactors are available in any case style
shown in this bulletin as well as in chip form. When order-
ing, specify the desired case by adding the case designa-
tion as a suffix to the model number, i.e., MA46601-30. For
example, a MA46601-30 specifies a 30 volt tuning diode in
a case style 30 with a Ct@-
4v
between .36 and .44 pF and
a Q at -4 volts and 50 MHz
≥7500.
The capacitance values
and capacitance ratios are for case style 30. Other case
styles or chips will have slightly different values.
All junctions are abrupt i.e., y = 0.50 ± .03.
Total capacitance ratios will vary with case choice due to
differences in case capacitance (Cp). Figure 1 shows the
ratio for the 30 case style.
Case parasitics (C
p
and L
s
) are given for most case styles.
Breakdown voltage (V
B
) is specified at -10
μA.
Specifications subject to change without notice.
2
ADVANCED:
Data Sheets contain information regarding a product MA-COM Technical Solutions is
•
North America
Tel: 800.366.2266 / Fax: 978.366.2266
considering for development. Performance is based on target specifications, simulated results, and/
•
Europe
Tel: 44.1908.574.200 / Fax: 44.1908.574.300
or prototype measurements. Commitment to develop is not guaranteed.
•
Asia/Pacific
Tel: 81.44.844.8296 / Fax: 81.44.844.8298
PRELIMINARY:
Data Sheets contain information regarding a product MA-COM Technical Solutions
Visit www.macom.com for additional data sheets and product information.
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-
MA-COM Technical Solutions and its affiliates reserve the right to make changes to the
ment to produce in volume is not guaranteed.
product(s) or information contained herein without notice.
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