Dielectric Resonance Oscillators

MICROWAVE
INC.
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SP
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DRO Selection Guide
DIELECTRIC RESONATOR OSCILLATORS
Frequency
Model Number
Mechanical
Tuning BW
(MHz)
Output
Phase Noise @ 100kHz offset
Power
(dBm) 2.5 GHz 6 GHz
12 GHz 20 GHz
Operating
Temp
(oC)
Free Running, Mechanically Tuned
+10
2.5 - 6.0
+10
+20
6.0 - 21.0
Free Running, Mechanically Tuned, Moisture Sealed
MDR2100
MDR2560
4.5 - 16.0
+10
+10
-130
-124
-118
-113
-20 to +65
-125
-122
-117
-111
-40 to +85
-122
-116
-108
-20 to +65
-
-
-110
-
-10 to +80
-120
-120
-114
-105
-20 to +65
AFC Voltage Tunable
+10
2.5 - 6.0
+10
-128
+20
6.0 - 21.0
AFC Voltage Tunable - For Fiber Optic Clock Recovery Applications
MDR3100
9.95328
10.667
Phase Locked, Internal Reference
MDR3001
+25
+11
3.0 - 6.0
+10
+13
6.0 - 21.0
+20
Phase Locked, Internal Reference - For LMDS Applications
MDR5100
MDR5530
9.0 - 13.0
-
+17
-
-
-110
-
-40 to +85
+10
+20
+13
-124
-120
-114
-105
-20 to +65
Phase Locked, External Reference
3.0 - 6.0
6.0 - 21.0
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MICROWAVE
INC.
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DROs
MDR6100
A Spectrum Control Business
SPECTRUM MICROWAVE • 2144 Franklin Drive N.E. • Palm Bay, Florida 32905 • Phone: (888) 553-7531 • Fax: (888) 553-7532
www.specwave.com SPECTRUM CONTROL GmbH • Hansastrasse 6 • 91126 Schwabach, Germany • Phone: (49)-9122-795-0 • Fax: (49)-9122-795-58
779
DRO Introduction
Dielectric Resonator Oscillator
The following pages contain the specifications for Spectrum Microwave stabilized signal sources.
Shown are basic free-running oscillators, oscillators with electronic tuning that can be modulated or
phase-locked by the user, and phase-locked oscillators using both internal and external reference
sources. The Spectrum Microwave line of stabilized oscillators is designed for use in systems requiring
high frequency stability with low phase noise, low microphonics, small size, and low power drain.
Typical applications include microwave radio links, satellite terminals, radar beacons, transponders,
ECM receivers, BITE oscillators, and frequency synthesizers. The following paragraphs discuss the
general characteristics of these oscillators. We urge you to call us to discuss your needs or e-mail us
at sales@specwave.com so that we may work together to provide the best oscillator solution.
Design Approach
Spectrum Microwave stabilized oscillators use a bipolar transistor or GaAs FET in conjunction with a
resonator made from a low loss ceramic. In an oscillator design, the transistor and resonator can
generate stable, fixed-frequency signals from 2.5 to 26 GHz. The oscillators are available in various
configurations. Free-running DROs are mechanically tunable. Voltage tunable DROs are available for
modulation, AFC, or phase-locking applications. The units are also available phase-locked to either an
internal crystal or external reference. Phase-locked units exhibit excellent phase noise performance and
temperature stability.
Mechanical Tunability
Free-running DROs can be mechanically tuned over as much as a 5 percent bandwidth before
competing modes become a problem. For communication uses, frequency stability requirements
typically limit the tuning range to 0.2 to 0.3 percent.
Power Output
Typical power outputs are 20 to l00 mW in the 2.5 MHz to 6 GHz range, decreasing to 10-20 mW in
the 15 to 26 GHz range. Higher output powers can be achieved either by using higher power
transistors in the oscillator or by following the oscillator with an internal amplifier.
Power variation over a 0 to +50°C range at a fixed frequency is typically ± 1 dB without an oven and
± a few tenths of a dB in an ovenized oscillator.
Frequency Stability with Temperature Variation
Free running oscillators exhibit temperature coefficients on the order of 5 ppm/°C for wide mechanical
tuning ranges and 3 ppm/°C for narrow mechanical tuning ranges of a few tenths of a percent.
Ovenized free running oscillators can be built with ± 10 ppm stability or better over -20ºC to +65°C
ambient temperature range.
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MICROWAVE
INC.
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Phase locked units have stabilities related to the crystal reference and are typically ±10 to ± 20 ppm
for standard crystals. Ovenized crystals can reduce stability variation to less than ±5 ppm.
A Spectrum Control Business
SPECTRUM MICROWAVE • 2144 Franklin Drive N.E. • Palm Bay, Florida 32905 • Phone: (888) 553-7531 • Fax: (888) 553-7532
www.specwave.com SPECTRUM CONTROL GmbH • Hansastrasse 6 • 91126 Schwabach, Germany • Phone: (49)-9122-795-0 • Fax: (49)-9122-795-58
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DRO Introduction
FM Noise
Typical single sideband phase noise measured at 10 kHz from the carrier is shown in Figure 1 for free
running GaAs FET DROs. These results are comparable to or better than conventional cavity
oscillator-multiplier results. Figure 2 shows SSB phase noise for 6 GHz DROs.
SSB Phase Noise dbc/Hz
Phase locked oscillators will of course exhibit the 20log(N)+3dB phase noise of the reference
oscillator within the loop bandwidth. See Application Note D-104 for more detailed discussion of
phase-locked oscillators.
-80
-90
-100
0
2
4
6
8
10
12
14
16
18
Operating Frequency (GHz)
DROs
Figure 1. Phase noise measured at 10 kHz from the carrier for a group of GaAs DROs at different
frequencies. The curve is an empirical fit to the data.
Figure 2. Typical single sideband phase noise for 6 GHz DROs. Curves continue to the left at 20 dB per decade.
AFC and Modulation
DROs can be built with tuning varactors in the oscillator circuit to provide voltage tuning capability for
AFC purposes, for phase-locking ability, or for use as a modulatable transmitter.
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Bias
DROs can be designed to operate from either a single positive or negative DC voltage. They can also be designed
to operate from a combination of positive and negative voltages with a total supply range of 10 to 24 volts.
A Spectrum Control Business
SPECTRUM MICROWAVE • 2144 Franklin Drive N.E. • Palm Bay, Florida 32905 • Phone: (888) 553-7531 • Fax: (888) 553-7532
www.specwave.com SPECTRUM CONTROL GmbH • Hansastrasse 6 • 91126 Schwabach, Germany • Phone: (49)-9122-795-0 • Fax: (49)-9122-795-58
781
DRO Introduction
Pushing
The pushing factor of a stabilized oscillator quantifies its susceptibility to variations in supply voltage.
Frequency pushing refers to the change in output frequency due to a variation in supply voltage.
Spectrum Microwave specifies frequency pushing in ppm/Volt due to a small change in supply
voltage. Pushing can also be stated as the change caused by a specific variation in supply voltage.
Voltage regulators are usually integrated into the oscillator to minimize pushing.
The pushing factor cannot necessarily be used to calculate the susceptibility of the oscillator to power
supply ripple. The susceptibility to ripple will depend on the frequency of the ripple, and the amount
of filtering and regulation within the oscillator.
Pulling
The pulling factor of a stabilized oscillator quantifies its susceptibility to output load variations.
Frequency pulling (or power pulling) specifies the change in output frequency (or power) caused by
operating the unit into all phases of a specified mismatch. Spectrum Microwave specifies frequency
pulling in ppm into all phases of a 12 dB return loss (1.67:1 VSWR). Many Spectrum Microwave
stabilized oscillators contain integral buffer amplifier stages or isolators which increase output
isolation and reduce pulling characteristics.
Microphonics
The basic oscillator circuit is extremely rugged and non-microphonic. Most frequency deviation is
associated with variations in the cable and connectors. Vibration sensitivity of f/fc = 4x10-10/g has
been measured at 2000 Hz vibration frequency in a narrow tuning range oscillator. This is not a
typical number, but demonstrates what is achievable.
High Reliability Options:
The design and construction techniques employed in Spectrum Microwave mixers provide excellent
performance over a wide operating temperature range. In addition to commercial applications, the
products are suitable for applications in military electronics systems. Contact Spectrum Microwave for
price and availability.
Commercial Products: Unless otherwise specified by the customer, Spectrum Microwave
commercial DROs are tested 100% at room, hot, and cold temperatures for key performance
parameters. Additional parameters are tested at room temperature only. Units are individually
serialized. Charges for specialized testing can be requested and a special model number code will be
assigned if required.
MICROWAVE
INC.
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SP
Military Grade: Unless otherwise specified by the customer specifications or purchase order,
commercial products will be supplied for military application with special attention given to
temperature range and other environmental requirements. Customer specification control drawing
requirements can be quoted and usually result in the assignment of a special model number. This
insures that unique manufacturing documentation will be created for the specified product and that
changes will not be made without customer approval. Spectrum Microwave "A" Screening: Adding an
"A" to a Spectrum Microwave model number will designate customer specified screening which will
be added to the manufacturing procedures for the DRO specified.
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A Spectrum Control Business
SPECTRUM MICROWAVE • 2144 Franklin Drive N.E. • Palm Bay, Florida 32905 • Phone: (888) 553-7531 • Fax: (888) 553-7532
www.specwave.com SPECTRUM CONTROL GmbH • Hansastrasse 6 • 91126 Schwabach, Germany • Phone: (49)-9122-795-0 • Fax: (49)-9122-795-58
782
Model MDR2100
Dielectric Resonator Oscillator
2.5 to 21.0 GHz
Free Running, Mechanically Tuned
Specifications
(1)
:
Frequency Range: (2)
Mechanical Tuning Bandwidth (min.)
Stability (max.)(3)
Pulling, 12 dB RL (max.)
Pushing (max.)
Harmonics (max.)
Spurious (max.)
Output Power (min.) (4)
Phase Noise (typ.)
10 kHz Offset, dBc/Hz
100 kHz Offset, dBc/Hz
1 MHz Offset, dBc/Hz
2.5-6.0 GHz
±10 MHz
5 ppm/ °C
±100 ppm
20 ppm/Volt
-15 dBc
-70 dBc
+10 dBm
2.5 GHz
-105
-130
-150
6.0-21.0 GHz
±20 MHz
5 ppm/ °C
±100 ppm
20 ppm/Volt
-15 dBc
-70 dBc
+10 dBm
6 GHz
-99
-124
-144
Input DC(5)
Operating Temperature
RF Connector
DC Connector
Frequency
(GHz)
2.5 to 6.0
4.0 to 10.0
6.0 to 14.0
10.0 to 14.0
14.0 to 21.0
12 GHz
-93
-118
-138
Outline
DD2A
DD1
DD
DD4
DD6
20 GHz
-88
-113
-133
+12 VDC ±3% @ 125 mA max.
-20 to +65°C
SMA Female
Solder Pin
PRODUCT LABEL AREA
THIS SURFACE
"S"
MAX
"C"
DROs
Notes:
1. Specifications labeled “min.” or “max.” are guaranteed in a 50 Ohm system over the specified temperature range.
2. Output frequency must be specified.
3. Averaged over the full temperature range.
4. Higher output power is available.
5. Alternate input voltage available.
6. Package must be verified by Spectrum Microwave.
"P" MAX
"J" DIA. THRU
4 PLACES
"F"
"E"
"N" MAX
"M"
"G"
"L"
"A"
"H"
"D"
GND
VDC
FREQ ADJUST
COARSE
FINE
Note 1
"B"
RF OUTPUT
SMA-FEMALE
"R"
DIMENSIONS: INCHES
DIM.
"A"
"DD" 1.65
"DD1" 1.75
"DD2A" 1.75
"DD4" 1.65
"DD6" 1.65
OUTLINE
"B"
1.46
1.60
2.00
1.18
1.46
"C"
.15
.12
.12
.15
.15
"D"
1.350
1.500
1.500
1.350
1.350
"E"
.36
.30
.50
.22
.36
"B"
37.1
40.6
50.8
30.0
37.1
"C"
3.8
3.0
3.0
3.8
3.8
"D"
34.29
38.10
38.10
34.29
34.29
"E"
9.1
7.6
12.7
5.6
9.1
"F"
.726
1.000
1.000
.750
.726
"G"
.32
.25
.25
.32
.32
"H"
1.00
1.25
1.25
1.00
1.00
"J"
.140
.125
.125
.125
.140
"K"
.76
.83
.83
.84
.83
"L"
.92
.98
.96
.77
.71
"M"
.16
.19
.19
.19
.16
"N"
1.55
1.70
1.75
1.55
1.55
"P"
1.70
2.00
2.00
1.70
1.70
"R"
.38
.38
.38
.38
.38
"S"
.40
.40
.40
.40
.40
"J"
3.6
3.2
3.2
3.2
3.6
"K"
19.3
21.1
21.1
21.3
21.1
"L"
23.4
24.9
24.4
19.6
18.0
"M"
4.0
4.8
4.8
4.8
4.0
"N"
39.4
43.2
44.5
39.4
39.4
"P"
43.2
50.8
50.8
43.2
43.2
"R"
9.7
9.7
9.7
9.7
9.7
"S"
10.2
10.2
10.2
10.2
10.2
"K"
1. Outline DD4 uses a separate
adjustment screw for coarse and fine
tune vs. the concentric adjustment
shown.
DIMENSIONS: MM
DIM.
"A"
"DD"
41.9
"DD1" 44.5
"DD2A" 44.5
"DD4" 41.9
"DD6" 41.9
OUTLINE
"F"
18.44
25.40
25.40
19.05
18.44
"G"
8.1
6.4
6.4
8.1
8.1
"H"
25.4
31.8
31.8
25.4
25.4
ECTRU
MICROWAVE
INC.
M
SP
All dimensions are in inches and [mm].
A Spectrum Control Business
SPECTRUM MICROWAVE • 2144 Franklin Drive N.E. • Palm Bay, Florida 32905 • Phone: (888) 553-7531 • Fax: (888) 553-7532
www.specwave.com SPECTRUM CONTROL GmbH • Hansastrasse 6 • 91126 Schwabach, Germany • Phone: (49)-9122-795-0 • Fax: (49)-9122-795-58
783
Dielectric Resonator Oscillator
Model MDR2560
Free Running, Mechanically Tuned, Moisture Sealed
Specifications
4.5 to 16.0 GHz
(1)
:
(2)
Frequency Range:
Mechanical Tuning Bandwidth (min.)
Stability (max.)(3)
Pulling, 12 dB RL (max.)
Pushing (max.)
Harmonics (max.)
Spurious (max.)
Output Power (min.) (4)
Phase Noise (typ.)
10 kHz Offset, dBc/Hz
100 kHz Offset, dBc/Hz
1 MHz Offset, dBc/Hz
Input DC(5)
Operating Temperature
RF Connector
DC Connector
4.5 - 16.0 GHz
±1500 ppm
5 ppm/°C
±50 ppm
1 ppm/Volt
-20 dBc
-70 dBc
+10 dBm
7 GHz
-95
-125
-145
10 GHz
-93
-122
-142
Frequency
(GHz)
4.5 to 7.5
7.5 to 11.0
11.0 to 16.0
12 GHz
-88
-117
-140
Outline
OD-33
OD-23
OD-13
16 GHz
-82
-111
-135
+10 to +15 VDC @ 100 mA max.
-40 to +85 °C
SMA Female
Solder Pin
Notes:
1. Specifications labeled “min.” or “max.” are guaranteed in a 50 Ohm system over the specified temperature range.
2. Output frequency must be specified.
3. Averaged over the full temperature range.
4. Higher output power is available.
5. Input voltage is internally regulated.
6. Package must be verified by Spectrum Microwave.
OD-13
OD-23
ECTRU
MICROWAVE
INC.
M
SP
OD-33
All dimensions are in
inches and [mm].
A Spectrum Control Business
SPECTRUM MICROWAVE • 2144 Franklin Drive N.E. • Palm Bay, Florida 32905 • Phone: (888) 553-7531 • Fax: (888) 553-7532
www.specwave.com SPECTRUM CONTROL GmbH • Hansastrasse 6 • 91126 Schwabach, Germany • Phone: (49)-9122-795-0 • Fax: (49)-9122-795-58
784
Dielectric Resonator Oscillator
Model MDR3100
AFC Voltage Tunable
Specifications
2.5 to 21.0 GHz
(1)
:
(2)
Frequency Range:
Mechanical Tuning Bandwidth (min.)
Stability (max.)(3)
Pulling, 12 dB RL (max.)
Pushing (max.)
Harmonics (max.)
Spurious (max.)
Output Power (min.) (4)
Phase Noise (typ.)
10 kHz Offset, dBc/Hz
100 kHz Offset, dBc/Hz
1 MHz Offset, dBc/Hz
2.5-6.0 GHz
±10 MHz
5 ppm/°C
±100 ppm
20 ppm/Volt
-15 dBc
-70 dBc
+10 dBm
3 GHz
-103
-128
-148
6 GHz
-97
-122
-142
AFC Tuning BW (min)
6.0-21.0 GHz
±20 MHz
5 ppm/°C
±100 ppm
20 ppm/Volt
-15 dBc
-70 dBc
+10 dBm
Frequency
(GHz)
2.5 to 5.0
4.0 to 10.0
10.0 to 14.0
14.0 to 21.0
12 GHz
-91
-116
-136
20 GHz
-83
-108
-128
Outline
DA3A
DA2A
DB1A
DA6A
2.5 - 10.0 GHz: 800 ppm
10.0 - 21.0 GHz: 600 ppm
+2 to +10 VDC
Parallel R-C 10K min./300 pf max
+12 VDC ±3% @ 125 mA max.
-20 to +65 °C
SMA Female
Solder Pin
AFC Tuning Voltage(5)
AFC Tuning Impedance
Input DC(6)
Operating Temperature
RF Connector
DC Connector
PRODUCT LABEL AREA
THIS SURFACE
AFC INPUT
"C"
SMA-FEMALE
"J" DIA THRU
4 PLACES
DROs
Notes:
1. Specifications labeled “min.” or “max.” are guaranteed in a 50 Ohm system over the specified temperature range.
2. Output frequency must be specified.
3. Averaged over the full temperature range.
4. Higher output power is available.
5. Other tuning voltages are available.
6. Other input voltages are available.
7. Package must be verified by Spectrum Microwave.
"P" MAX
"N" MAX
"S"
MAX
"F"
"E"
"M"
"G"
"U"
"L"
"A"
GND
"H"
"D"
VDC
FREQ ADJUST
COARSE
FINE
NOTE 1
"I"
"B"
RF OUTPUT
SMA-FEMALE
"R"
"K"
1. Outline DD4 uses a seperate adjustment screw for coarse and fine tune vs.
the concentric adjustment shown.
DIMENSIONS: INCHES
DIM
OUTLINE
"DA2A"
"DA3A"
"DB1A"
"DA6A"
"A"
1.75
1.75
1.65
1.65
"B"
1.60
2.00
1.18
1.46
"C"
.12
.12
.15
.15
"D"
1.500
1.500
1.350
1.350
"E"
.30
.50
.22
.36
"A"
44.5
44.5
41.9
41.9
"B"
40.6
50.8
30.0
37.1
"C"
3.0
3.0
3.8
3.8
"D"
38.10
38.10
34.29
34.29
"E"
7.6
12.7
5.6
9.1
"F"
1.000
1.000
.750
.726
"G"
.25
.25
.32
.32
"H"
1.25
1.25
1.00
1.00
"J"
.125
.125
.125
.140
"K"
.83
.83
.84
.83
"L"
.98
.96
.77
.71
"M"
.19
.19
.19
.16
"N"
1.70
1.75
1.55
1.55
"P"
2.00
2.00
1.55
1.70
"R"
.38
.38
.38
.38
"S"
.40
.40
.40
.40
"T"
1.00
1.00
.89
.83
"U"
.53
.53
.77
.71
"K"
21.1
21.1
21.3
21.1
"L"
24.9
24.4
19.6
18.0
"M"
4.8
4.8
4.8
4.0
"N"
43.2
44.5
39.4
39.4
"P"
50.8
50.8
39.4
43.2
"R"
9.7
9.7
9.7
9.7
"S"
10.2
10.2
10.2
10.2
"T"
25.4
25.4
22.6
21.1
"U"
13.5
13.5
19.6
18.0
DIMENSIONS: METRIC
DIM
OUTLINE
"DA2A"
"DA3A"
"DB1A"
"DA6A"
"F"
25.40
25.40
18.42
18.44
"G"
6.4
6.4
8.1
8.1
"H"
31.8
31.8
25.4
25.4
"J"
3.2
3.2
3.2
3.6
ECTRU
MICROWAVE
INC.
M
SP
All dimensions are in inches and [mm].
A Spectrum Control Business
SPECTRUM MICROWAVE • 2144 Franklin Drive N.E. • Palm Bay, Florida 32905 • Phone: (888) 553-7531 • Fax: (888) 553-7532
www.specwave.com SPECTRUM CONTROL GmbH • Hansastrasse 6 • 91126 Schwabach, Germany • Phone: (49)-9122-795-0 • Fax: (49)-9122-795-58
785
Dielectric Resonator Oscillator
AFC Voltage Tunable
Specifications
Model MDR3001
9.95328 & 10.66700 GHz
(1)
:
Frequency Available:
Mechanical Tuning Bandwidth (min.)
Stability (max.)(2)
Pulling, 12 dB RL (typ.)
Pushing (typ.)
Harmonics (max.)
Other Spurious (max.)
Output Power (25°C)
Phase Noise (typ.)
100 kHz Offset, (typ.)
Tuning Voltage
Electronic Tuning
Power Supply Voltage
Power Supply Current
Operating Temperature
RF Connector
DC Connector
MDR3001-02: 9953.28 MHz
MDR3001-03: 10667.00 MHz
±25 MHz
3 ppm/°C
±100 kHz
5 kHz/Volt
-20 dBc
-80 dBc
+11 dBm ±1 dB
-110 dBc/Hz
+1.5 to +11 VDC
Fo ±7.5 MHz min.
+10.5 to +15.0 VDC
125 mA max
-10 to +80 °C
SMA Female
Solder Pin
ECTRU
MICROWAVE
INC.
M
SP
Notes:
1. Specifications labeled “min.” or “max.” are guaranteed in a 50 Ohm system over the specified temperature range.
2. Averaged over the full operating temperature range.
A Spectrum Control Business
SPECTRUM MICROWAVE • 2144 Franklin Drive N.E. • Palm Bay, Florida 32905 • Phone: (888) 553-7531 • Fax: (888) 553-7532
www.specwave.com SPECTRUM CONTROL GmbH • Hansastrasse 6 • 91126 Schwabach, Germany • Phone: (49)-9122-795-0 • Fax: (49)-9122-795-58
786
Dielectric Resonator Oscillator
Model MDR5100
Phase Locked Internal Reference
(1)
:
Frequency Range: (2)
Mechanical Tuning Bandwidth (min.)(3)
Stability (max.)(4)
Pushing (max.)
Harmonics (max.)
Spurious (max.)
Output Power (min.) (5)
Phase Noise (typ.)
1 kHz Offset, dBc/Hz
10 kHz Offset, dBc/Hz
100 kHz Offset, dBc/Hz
1 MHz Offset, dBc/Hz
3 GHz
-102
-118
-124
-140
Internal Crystal Reference
Frequency (nominal)
Monitor Output (min.)
Phase Voltage
Set to (nom.)
Lock Range (min.)
Phase-Lock Alarm
Locked
Unlocked
Input DC (6)
Operating Temperature
RF Connector
DC Connector
3.0 - 6.0 GHz
±10 MHz
±10 ppm
0.1 ppm/Volt
-20 dBc
-80 dBc
+13 dBm
6 GHz
-99
-114
-120
-136
6.0-21.0 GHz
±20 MHz
±10 ppm
0.1 ppm/Volt
-20 dBc
-80 dBc
+13 dBm
12 GHz
-93
-108
-114
-128
100 MHz adjustable ±5 ppm min.
-20 dBm
+5.0 VDC
+2 to +9 VDC
Transistor Collector (NPN)
Open Vc = 30 VDC max.
Saturated to Ground
Vce = +0.5 VDC max.
Ic = 50 mA max.
+12 VDC ±3% @ 275 mA max.
-20 to 65 °C
SMA Female
Solder Pin
Frequency
(GHz)
3.0 to 8.0
6.0 to 14.0
14.0 to 21.0
Outline
DL1
DL
DLA
20 GHz
-90
-100
-105
-120
Notes:
1. Specifications labeled “min.” or
“max.” are guaranteed in a 50
Ohm system over the specified
temperature range.
2. Output frequency must be
specified and it is an integer
multiple of the internal crystal
reference frequency.
3. Mechanical tuning of DRO in
unlocked mode.
4. Maximum over the full
temperature range.
5. Higher output power is available.
6. Other input voltages available.
7. Package must be verified by
Spectrum Microwave.
DROs
Specifications
3.0 to 21.0 GHz
ECTRU
MICROWAVE
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All dimensions are in inches and [mm].
A Spectrum Control Business
SPECTRUM MICROWAVE • 2144 Franklin Drive N.E. • Palm Bay, Florida 32905 • Phone: (888) 553-7531 • Fax: (888) 553-7532
www.specwave.com SPECTRUM CONTROL GmbH • Hansastrasse 6 • 91126 Schwabach, Germany • Phone: (49)-9122-795-0 • Fax: (49)-9122-795-58
787
Dielectric Resonator Oscillator
Model MDR5530
Phase Locked Internal Reference
Specifications
9.0 to 13.0 GHz
(1)
Frequency Available:
Stability (max.)
Harmonics (max.)
Spurious (max.)
Output Power (min.)
:
(2)
9.0 - 13.0 GHz Coverage
±2 ppm max.
-40 dBc
-85 dBc
+17 dBm ±2dB
Phase Noise (typ.)
100 Hz Offset
1 kHz Offset
10 kHz Offset
100 kHz Offset
1 MHz Offset
Notes:
1. Specifications labeled “min.” or “max.”
are guaranteed in a 50 Ohm system
over the specified temperature range.
2. Exact output frequency must be
specified.
-70 dBc/Hz max.
-95 dBc/Hz max
-105 dBc/Hz max
-110 dBc/Hz max
-130 dBc/Hz max
Internal Crystal Reference
Frequency
Phase Voltage
Set to (nom.)
Lock Range (min.)
Phase-Lock Alarm
Locked
Unlocked
Input DC
Operating Temperature
RF Connector
DC Connector
100 MHz nominal
+5.0 VDC
+2 to +9 VDC
TTL Compatible
TTL High
TTL Low
+12 ±1 VDC @ 725 mA max. quiescent
1 A max. at cold start
-40 to +85°C
SMA Male
Solder Pin
ECTRU
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SPECTRUM
A Spectrum Control Business
SPECTRUM MICROWAVE • 2144 Franklin Drive N.E. • Palm Bay, Florida 32905 • Phone: (888) 553-7531 • Fax: (888) 553-7532
www.specwave.com SPECTRUM CONTROL GmbH • Hansastrasse 6 • 91126 Schwabach, Germany • Phone: (49)-9122-795-0 • Fax: (49)-9122-795-58
788
Dielectric Resonator Oscillator
Model MDR6100
Phase Locked External Reference
(1)
:
Frequency Range: (2)
Mechanical Tuning Bandwidth (min.)(3)
Stability (max.)
Harmonics (max.)
Spurious (max.)
Output Power (min.) (5)
Phase Noise (typ.)
1 kHz Offset, dBc/Hz
10 kHz Offset, dBc/Hz
100 kHz Offset, dBc/Hz
1 MHz Offset, dBc/Hz
3.0 - 6.0 GHz
±10 MHz
Note 4
-20 dBc
-80 dBc
+13 dBm
3 GHz
-108
-118
-124
-140
6.0-21.0 GHz
±20 MHz
Note 4
-20 dBc
-80 dBc
+13 dBm
6 GHz
-104
-114
-120
-136
External Reference Input
Phase Voltage
Set to (nom.)
Lock Range (min.)
Phase-Lock Alarm
Locked
Unlocked (7)
12 GHz
-98
-108
-114
-128
Frequency
(GHz)
3.0 to 8.0
6.0 to 14.0
14.0 to 21.0
20 GHz
-90
-100
-105
-120
100 MHz nominal @ 0 dBm ±3 dB
+5.0 VDC
+2 to +9 VDC
Transistor Collector (NPN)
Open Vc = 30 VDC max.
Saturated to Ground
Vce = +0.5 VDC max.
Ic = 50 mA max.
+12 VDC ±3% @ 275 mA max.
-20 to +65°C
SMA Female
Solder Pin
Input DC (8)
Operating Temperature
RF Connector
DC Connector
"H"
"B"
"K"
Notes:
1. Specifications labeled “min.”
or “max.” are guaranteed in a
50 Ohm system over the
specified temperature range.
2. Output frequency must be
specified and it is an integer
multiple of the external
reference input frequency.
3. Mechanical tuning of DRO in
unlocked mode.
4. Frequency stability is
determined by the external
reference.
5. Higher output power is
available.
6. Phase noise at offsets <100
kHz is dependent on external
reference and can be
approximated as follows:
- Phase Noise (dB) = 20 log
(N) +3dB above the external
reference phase noise.
- Where N = multiple of
reference.
7. Actual or impending loss of
lock.
8. Other input voltages available.
9. Package must be verified by
Spectrum Microwave.
.40 MAX
[10.8]
"C"
"D"
"J"
PRODUCT LABEL AREA
"F"
"L"
Outline
DL1
DL
DLA
VDC
GND
OV
ALARM
DROs
Specifications
3.0 to 21.0 GHz
"G"
"A"
"M"
"E"
FREQ
ADJ
EXTERNAL
REFERENCE
INPUT
"P"
"N"
RF OUTPUT
.38
[9.7]
2 PL
"T" MAX.
"U"
4 PLACES
DIM.
"A"
"DI" 2.25
"DIA" 2.25
"DI1" 2.75
OUTLINE
DIM.
"A"
"DI" 57.2
"DIA" 57.2
"DI1" 69.8
OUTLINE
"S" DIA THRU
3 PLACES
DIMENSIONS: INCHES
"B" "C" "D" "E" "F" "G" "H" "J"
2.25 2.070 .09 2.070 .09 1.100 .62 .09
2.25 2.070 .09 2.070 .09 1.100 .62 .09
2.75 2.570 .09 2.570 .09 1.285 1.00 .14
"B"
57.2
57.2
69.8
"C"
52.58
52.58
65.28
SMA FEMALE
2 PLACES
"R"
"K"
.280
.280
.600
"L" "M" "N" "P"
.09 2.070 .53 1.20
.09 2.070 .53 1.20
.08 2.600 .53 1.65
"R"
.21
.29
.25
"S"
.109
.109
.125
"T"
.10
.10
.50
"U"
2-56 UNC-2B X .23 DEEP
2-56 UNC-2B X .23 DEEP
4-40 UNC-2B X .30 DEEP
DIMENSIONS: MM
"D" "E" "F" "G" "H" "J" "K"
2.3 52.58 2.3 27.94 15.7 2.3 7.11
2.3 52.58 2.3 27.94 15.7 2.3 7.11
2.3 65.28 2.3 32.64 25.4 3.6 15.24
"L" "M" "N" "P"
2.3 52.58 13.5 30.5
2.3 52.58 13.5 30.5
2.1 66.04 13.5 41.9
"R"
5.3
7.4
6.4
"S"
2.77
2.77
3.2
"T"
2.5
2.5
12.7
"U"
2-56 UNC-2B X 5.8 DEEP
2-56 UNC-2B X 5.8 DEEP
4-40 UNC-2B X 7.6 DEEP
ECTRU
MICROWAVE
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All dimensions are in inches and [mm].
A Spectrum Control Business
SPECTRUM MICROWAVE • 2144 Franklin Drive N.E. • Palm Bay, Florida 32905 • Phone: (888) 553-7531 • Fax: (888) 553-7532
www.specwave.com SPECTRUM CONTROL GmbH • Hansastrasse 6 • 91126 Schwabach, Germany • Phone: (49)-9122-795-0 • Fax: (49)-9122-795-58
789
DRO Application Notes
DRO Application Note D-104
Phase-Locked DRO Characteristics
The Spectrum Microwave line of Phase-locked Dielectric Resonator Oscillators consists of the
following series:
MDR 5100 Series - Phase-locked DRO, Internal Crystal Reference.
MDR 6100 Series - Phase-locked DRO, External Crystal Reference.
These low-cost microwave oscillators exhibit excellent frequency stability and phase noise
characteristics. The most common application for these microwave sources is as local oscillators
in microwave radios. Other applications include frequency synthesizers, satellite converters, BITE
oscillators, and frequency multipliers. The following paragraphs review the general characteristics
of these oscillators. For detailed specifications or specific requirements, please contact Spectrum
Microwave.
General
Spectrum Microwave’s line of phase-locked DROs cover 3.0-26 GHz with output power of +13 dBm at
26 GHz. They consist of an electronically tuned DRO, phase-locked to a reference crystal oscillator via
a sampling phase detector and loop amplifier/filter. This technique maintains the excellent frequency
stability of the crystal oscillator and low phase noise characteristics of the crystal oscillator/DRO
combination. The MDR 5100 Series contains an internal crystal oscillator reference, whereas, the MDR
6100 Series requires an external reference. The output frequency is an exact integral multiple of the
reference frequency.
Figure 1
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Description
Figure 1 shows a simplified block diagram of a phase-locked DRO. The sampling phase detector
creates an error signal corresponding to any attempted phase difference between the DRO and
the nth harmonic of the reference. This error signal is fed through the loop amplifier/filter to the
DRO voltage tuning port, where it corrects for the attempted phase error. This feedback process
allows the DRO to maintain the phase (and frequency) stability of the reference to the limits of
the phase lock loop gain/bandwidth.
A Spectrum Control Business
SPECTRUM MICROWAVE • 2144 Franklin Drive N.E. • Palm Bay, Florida 32905 • Phone: (888) 553-7531 • Fax: (888) 553-7532
www.specwave.com SPECTRUM CONTROL GmbH • Hansastrasse 6 • 91126 Schwabach, Germany • Phone: (49)-9122-795-0 • Fax: (49)-9122-795-58
790
DRO Application Notes
The correction voltage applied to the DRO tuning port is referred to as the Phase Voltage (OV) and is
generally accessible for monitoring. Under ambient conditions, the DC level of the phase voltage is set
to a specified voltage, nominally the center of the DRO tuning voltage range (Lock Range). As the
DRO frequency attempts to drift due to temperature or aging, the phase voltage DC level will change
as the phase lock loop corrects for the attempted drift. The phase voltage DC level will also change
(and is initially set) by mechanically tuning the DRO Frequency Adjust. It should be noted that as the
DRO is mechanically tuned over its specified mechanical tuning range, it will phase lock to each
harmonic of the reference as they appear within the lock range.
The phase lock loop circuitry contains a search function to help in achieving phase lock when DC
power is first applied to the unit. The search function will voltage tune the DRO over the full lock
range until phase-lock is achieved. If the DRO is mechanically tuned off frequency, or the reference
input is removed, the DRO will continue to sweep (search) over the full voltage tuning range. The
Lock Range of a phase-locked DRO is typically 10 VDC, corresponding to a nominal frequency change
of 1000 ppm.
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Phase Lock Alarm
The phase lock alarm is a lock limit alarm which indicates when the phase lock loop has lost, or is
about to lose phase lock. The phase-locked DROs typically provide an open transistor collector to the
alarm output. Loss of lock (or impending loss of lock) is indicated by the transistor collector being
saturated to ground. This alarm circuit, when used with an appropriate pull-up resistor, is compatible
with TTL and CMOS, or can be used directly with an LED or other types of panel indicators.
DROs
Crystal Oscillator Reference
The MDR 5100 Series uses an internal crystal oscillator reference. The crystal used is a 5th overtone,
AT-cut crystal at 100 MHz nominal frequency. Standard frequency stability is ±10 ppm over the -20 to
+65°C operating temperature range. Higher stabilities of ±5 ppm are consistently achieved over -10
to +65°C using temperature compensation on the crystal oscillator. Further improvement is possible by
ovenizing the crystal. A screwdriver adjustment (Xtal tune) is available for resetting the frequency to
correct for crystal aging.
A Spectrum Control Business
SPECTRUM MICROWAVE • 2144 Franklin Drive N.E. • Palm Bay, Florida 32905 • Phone: (888) 553-7531 • Fax: (888) 553-7532
www.specwave.com SPECTRUM CONTROL GmbH • Hansastrasse 6 • 91126 Schwabach, Germany • Phone: (49)-9122-795-0 • Fax: (49)-9122-795-58
791
DRO Application Notes
Phase Noise
The phase noise of a phase-locked DRO is determined by a combination of the reference phase noise,
the DRO phase noise, and the phase lock loop bandwidth. Within the loop bandwidth, the phase noise
will generally track the multiplied reference phase noise, i.e. reference oscillator phase noise equals
+20log(N)+3dB where N = (output freq/reference freq.). Outside the loop bandwidth, the phase noise
will generally be that of the DRO. The phase noise near the region of the loop bandwidth will be
affected by the loop gain/bandwidth. The phase lock loop bandwidth (typically 100 kHz) is generally
set to optimize the overall phase noise as shown in Figure 2.
Figure 2 Phase Noise (10 GHz)
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Environment
Spectrum Microwave phase-locked DROs are generally built to meet the stringent microphonic and
phase stability requirements of a microwave digital radio. Operating temperature range is normally 20 to +65 °C. Designs have been built to meet military requirements (MIL-E-5400) and operating
temperature range of (-54 to +84°C).
A Spectrum Control Business
SPECTRUM MICROWAVE • 2144 Franklin Drive N.E. • Palm Bay, Florida 32905 • Phone: (888) 553-7531 • Fax: (888) 553-7532
www.specwave.com SPECTRUM CONTROL GmbH • Hansastrasse 6 • 91126 Schwabach, Germany • Phone: (49)-9122-795-0 • Fax: (49)-9122-795-58
792