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PDF MA46580 Data sheet ( Hoja de datos )

Número de pieza MA46580
Descripción (MA46580 / MA46585) Beam Lead Constant Gamma GaAs Tuning Varactor
Fabricantes Tyco Electronics 
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Beam Lead Constant Gamma
GaAs Tuning Varactor
Features
Constant Gamma = 1.0 & 1.25 available
High Q (3000 minimum at 4V 50MHz)
Strong Beam Construction
(Minimum 10 gram beam strength)
Low Parasitic Capacitance
Close Capacitance tracking
Lead-Free (RoHs Compliant) equivalents avail-
able with 260°C reflow compatibility.
Description
The MA46580,MA46585 and MA46H130 series of
beam lead constant gamma tuning varactors are
hyperabrupt junction gallium arsenide diodes with a
constant gamma of 1.0 or 1.25. The high Q values
and the elimination of package parasitics make
these varactors very attractive for voltage controlled
oscillators that require linear tuning. These tuning
diodes are useful at frequencies as high as 40 Ghz.
The beam lead design eliminates almost all of the
package parasitics resulting in improved linearity of
the junction capacitance change with applied re-
verse bias voltage. This improves tracking between
diodes and can improve VCO linearity.
RoHs Compliant
MA46580 & MA46585
V3
Absolute Maximum Ratings @ TA=+25 °C
1
(Unless Otherwise Noted)
Parameter
Reverse Voltage
Operating Temperature
Absolute Maximum
18V
-65°C to +150°C
Storage Temperature
Power Dissipation
Beam Strength
-65°C to +200°C
25mW at 25 °C
10 grams minimum
1. Operation of this device above any one of these parameters
may cause permanent damage.
Applications
These beam lead constant gamma tuning varactors
are particularly useful in broadband VCO’s, where
linear frequency tuning is an important feature.
They are also very useful for FM modulating a
source for telecommunication transmitter and in
many cases such circuits can be designed without
a linearization circuit.
Electrical Specifications @ TA = +25 °C
Gamma = 1.02
Gamma4 = 0.9 - 1.1, VR = 2 - 12 Volts
Breakdown Voltage @ IR = 10µA, Vb = 18 V Min
Reverse Leakage Current @ VR =14V, IR = 50 nA Max
Electrical Specifications @ TA = +25 °C
Gamma = 1.252
Gamma4 = 1.13-1.38, VR = 2 - 12 Volts
Breakdown Voltage @ IR = 10µA, Vb = 18 V Min
Reverse Leakage Current @ VR =14V, IR = 50 nA Max
Part Number
Case
Style
MA46585-1209 1209
Total
Capaci-
tance1
+/-20%
Vr=4V
(pF)
0.5
Total
Capaci-
tance
Ratio
Vr=2V
Vr=12V
Q
Minimum
Vr=4V
f=50MHz
--
3.2-5.2
3000
Part Number
Case
Style
Total
Capaci-
tance1
+/-20%
Vr=4V
MA46580-1209 1209
(pF)
0.5
Total
Capaci-
tance
Ratio
Q
Minimum
Vr=2V Vr=4V
Vr=12V f=50MHz
--
4.5-6.5
3000
Notes:
1. Capacitance is measured at 1 MHz.
2. All junctions are hyperabrupt with nominal Γ= 1.0 or 1.25
3. Reverse voltage (VB) is measured at 10 microamps.
1
M/A-COM Inc. and its affiliates reserve the right to make changes to the
product(s) or information contained herein without notice. M/A-COM makes
no warranty, representation or guarantee regarding the suitability of its
products for any particular purpose, nor does M/A-COM assume any liability
whatsoever arising out of the use or application of any product(s) or
information.
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.

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