Tuning Varactors
Tuning Varactors:
MTV 4045 Series
45-Volt Abrupt Tuning Varactors
Description
The
MicroMetrics
MTV 4045 series
Tuning Varactors are silicon abrupt
junction devices. They offer the
highest Q and lowest resistance
available in 45 volt tuning diodes.
A unique silicon dioxide passivation
process assures greater stability,
reliability and low leakage currents at
higher temperatures.
Applications
The MTV 4045 series Tuning Varactors
are used for both narrow and wide
band tuning through X-band.
These devices are used in circuits
requiring a high Q voltage variable
capacitance such as: tunable filters
and amplifiers, voltage controlled
oscillators, frequency synthesizers and
continuous phase shifters. They are
also useful as frequency and phase
modulators in communications
applications.
Standard capacitance tolerance is
±10%. Diodes can be optimized for
custom electrical or mechanical
specifications upon request.
REVERSE BIAS SCALE INCLUDES WORK
FUNCTION FOR SILICON (φ = .7 VOLTS)
Features
• Low Series Resistance - High Q
• Extensive Selection of Capacitance
Values
Packaging
• Available in a Wide Range of Case
Styles as well as Chip Form
Typical Performance
100
γ
= .44
φ
=.70
VB=45V
JUNCTION CAPACITANCE (Cj)
(pF)
10
1.0
MTV 4045-18
MTV 4045-17
MTV 4045-16
MTV 4045-15
MTV 4045-14
MTV 4045-13
MTV 4045-12
MTV 4045-11
MTV 4045-10
MTV 4045-09
MTV 4045-08
MTV 4045-05
MTV 4045-04
MTV 4045-03
MTV 4045-02
.10
1.0
10
REVERSE BIAS (Vr)
(V)
100
18
MicroMetrics, Inc.
136 Harvey Road, Building C, Londonderry, NH 03053
Voice: 603-641-3800, Fax: 603-641-3500, Internet: www.micrometrics.com, E-mail: serv@micrometrics.com
Electrical Characteristics
Total Capacitance, Ct
1
at -4V, 1 MHz
(pF)
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.2
2.7
3.3
3.6
3.9
4.7
5.6
6.8
8.2
10.0
12.0
15.0
18.0
22.0
Capacitance Ratio
Ct0/Ct45
MIN
7.0
7.0
7.0
7.0
7.0
7.0
7.0
7.0
7.0
7.0
7.0
7.0
7.0
7.0
7.0
7.0
7.0
7.0
7.0
7.0
7.0
7.0
Quality Factor, Q
2
@-4V, 50 MHz
MIN
3000
3000
2800
2800
2600
2400
2400
2300
2200
2200
2100
2000
2000
2000
1900
1800
1700
1600
1500
1400
1300
1200
Part
Number
MTV4045-01
MTV4045-02
MTV4045-03
MTV4045-04
MTV4045-05
MTV4045-06
MTV4045-07
MTV4045-08
MTV4045-09
MTV4045-10
MTV4045-11
MTV4045-12
MTV4045-13
MTV4045-14
MTV4045-15
MTV4045-16
MTV4045-17
MTV4045-18
MTV4045-19
MTV4045-20
MTV4045-21
MTV4045-22
Notes:
1. Capacitance tolerance is ± 10% except for ± 20% for suffix number 01, 02, and 03.
2. Q specified Vr = 4V, 50 MHz equivalent from 1 GHz or 100 MHz measurement.
Maximum Ratings
Parameter
Operating Temperature
Storage Temperature Range
Reverse Voltage
Device Dissipation at TA = 25°C
Symbol
Top
Tstg
Vr
Value
-55 to + 150
-65 to + 200
45
250
Units
°C
°C
Volts
mW
MicroMetrics, Inc.
136 Harvey Road, Building C, Londonderry, NH 03053
Voice: 603-641-3800, Fax: 603-641-3500, Internet: www.micrometrics.com, E-mail: serv@micrometrics.com
19
Tuning Varactors
Tuning Varactors:
MTV 4045 Series
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