HMC-C028
v02.0916
WIDEBAND VCO w/ BUFFER
AMPLIFIER MODULE, 4 - 8 GHz
CONNECTORIZED MODULES - VCOs
12
Features
Wide Tuning Bandwidth
High Output Power: +20 dBm
Low SSB Phase Noise: -95 dBc/Hz @100 kHz
No External Resonator Needed
Single Positive Supply: +8 to +15V @ 185 mA
RoHS Compliant Hermetically Sealed Module
Typical Applications
Field Replaceable SMA Connectors
The HMC-C028 VCO Module is ideal for:
-40°C to +85°C Operating Temperature
• Industrial/Medical Equipment
• Test & Measurement Equipment
• Military Radar, EW & ECM
General Description
• Lab Instrumentation
The HMC-C028 is a wideband GaAs InGaP Voltage
Controlled Oscillator which incorporates the
resonator, negative resistance device, and varactor
diode. An internal voltage regulator provides excellent
0.2 MHz/V frequency pushing while the output buffer
Functional Diagram
is enough to drive one or two mixers. Phase noise
performance is excellent over temperature due to the
oscillator’s monolithic construction. The Vtune port
accepts an analog tuning voltage from 0 to +18V. The
HMC-C028 VCO operates from a single +8V to +15V
supply, and is housed in a hermetically sealed module.
This wideband VCO uniquely combines the attributes
of small size, low phase noise, wide tuning range and
high output power.
cations, TA = +25° C, Vdc = +12V
Parameter
Min.
Frequency Range
Power Output
17
-75
0
Typ.
Max.
5.0 - 8.0
15
185
Units
GHz
20
dBm
-95
dBc/Hz
-75
18
Tune Port Leakage Current (Vtune = +15V)
3
dBc/Hz
18
185
10
V
mA
10
µA
Output Return Loss
15
15
dB
2nd Harmonic
-10
-10
dBc
1
1
MHz pp
Pushing @ Vtune= +5V
0.2
0.2
MHz/V
Frequency Drift Rate
0.8
0.8
MHz/°C
Pulling (into a 2.0:1 VSWR)
12 - 106
Min.
-95
SSB Phase Noise @ 10 kHz Offset
Supply Current (Idc) (Vdc = +12V)
Max.
4.0 - 8.0
13
SSB Phase Noise @ 100 kHz Offset
Tune Voltage (Vtune)
Typ.
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
For price, delivery, and to place orders: Analog Devices, Inc.,
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
Phone: 781-329-4700 • Order online at www.analog.com
Application Support: Phone: 1-800-ANALOG-D
HMC-C028
v0
WIDEBAND VCO w/ BUFFER
AMPLIFIER MODULE, 4 - 8 GHz
Frequency vs. Tuning Voltage, T = +25°C
9
OUTPUT FREQUENCY (GHz)
OUTPUT FREQUENCY (GHz)
9
8
7
6
5
11V
12V
13V
4
3
8
7
6
5
+25C
+85C
-40C
4
3
0
2
4
6
8
10
12
14
16
18
20
0
2
4
TUNING VOLTAGE (VOLTS)
6
8
10
12
14
16
18
20
16
18
20
TUNING VOLTAGE (VOLTS)
Sensitivity vs. Tuning Voltage, Vcc = +12V
Output Power vs.
Tuning Voltage, Vcc = +12V
400
24
OUTPUT POWER (dBm)
SENSITIVITY (MHz/VOLT)
22
300
200
+25C
+85C
-40C
100
20
18
16
14
+25C
+85C
-40C
12
10
0
8
0
2
4
6
8
10
12
14
16
18
20
0
TUNING VOLTAGE (VOLTS)
-20
-20
SSB PHASE NOISE (dBc/Hz)
0
10 kHz
100 kHz
-60
-80
-100
-120
0
2
4
6
8
10
12
14
TUNING VOLTAGE (VOLTS)
4
6
8
10
12
14
Typical SSB Phase Noise @ Vtune = +12V
0
-40
2
TUNING VOLTAGE (VOLTS)
SSB Phase Noise vs. Tuning Voltage
SSB PHASE NOISE (dBc/Hz)
12
CONNECTORIZED MODULES - VCOs
Frequency vs. Tuning Voltage, Vdc = +12V
16
18
20
+25C
+85C
-40C
-40
-60
-80
-100
-120
2
10
3
10
4
10
5
10
6
10
OFFSET FREQUENCY (Hz)
For price, delivery, and to place orders: Analog Devices, Inc., One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
Phone: 781-329-4700 • Order online at www.analog.com
Application Support: Phone: 1-800-ANALOG-D
12 - 107
HMC-C028
v0.
WIDEBAND VCO w/ BUFFER
AMPLIFIER MODULE, 4 - 8 GHz
Outline Drawing
CONNECTORIZED MODULES - VCOs
12
NOTES:
Package Information
Package Type
C-1
Package Weight [1]
10.2 gms [2]
Spacer Weight
N/A
1. PACKAGE, LEADS, COVER MATERIAL: KOVAR™
2. BRACKET MATERIAL: ALUMINUM.
3. PLATING: ELECTROLYTIC GOLD 50 MICROINCHES MIN.,
OVER ELECTROLYTIC NICKEL 75 MICROINCHES MIN.
4. ALL DIMENSIONS ARE IN INCHES [MILLIMETERS].
5. TOLERANCES: ±.010 [0.25] UNLESS OTHERWISE SPECIFIED.
12 - 108
[1] Includes the connectors
6. MARK LOT NUMBER ON LABEL WHERE SHOWN,
[2] ±1 gms Tolerance
WITH .030” MIN TEXT HEIGHT.
For price, delivery, and to place orders: Analog Devices, Inc., One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
Phone: 781-329-4700 • Order online at www.analog.com
Application Support: Phone: 1-800-ANALOG-D
HMC-C028
v0.
WIDEBAND VCO w/ BUFFER
AMPLIFIER MODULE, 4 - 8 GHz
Vdc
-0.3 Vdc to +25 Vdc
Vtune
0 to +22V
Storage Temperature
-65 to +150 °C
Operating Temperature
-40 to +85 °C
Pin Descriptions
Pin Number
Function
Description
1
RFOUT
RF output (AC coupled) uses a female SMA connector.
2
Vdc
Supply Voltage Vdc = +8V to +15V.
3
VTUNE
Control Voltage and Modulation Input uses a female
SMA connector. Modulation bandwidth dependent on
drive source impedance. See “Determining the FM
Bandwidth of a Wideband Varactor Tuned VCO” application note.
4
GND
Must be connected to power supply ground.
Interface Schematic
For price, delivery, and to place orders: Analog Devices, Inc., One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
Phone: 781-329-4700 • Order online at www.analog.com
Application Support: Phone: 1-800-ANALOG-D
CONNECTORIZED MODULES - VCOs
12
Absolute Maximum Ratings
12 - 109
