HMC-C028 v01.1007 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: -40C to +85C 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 amplifier boosts output power to +20 dBm; which 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. Functional Diagram Electrical Specifi cations, TA = +25 C, Vdc = +12V Parameter Min. Frequency Range Power Output Typ. 16 Min. 20 17 Typ. GHz dBm dBc/Hz -95 -95 -75 -75 Supply Current (Idc) (Vdc = +12V) 18 185 Tune Port Leakage Current (Vtune = +15V) Units 20 SSB Phase Noise @ 10 kHz Offset 0 Max. 5.0 - 8.0 SSB Phase Noise @ 100 kHz Offset Tune Voltage (Vtune) 3 dBc/Hz 18 185 10 V mA 10 A Output Return Loss 15 15 dB 2nd Harmonic -10 -10 dBc MHz pp Pulling (into a 2.0:1 VSWR) 12 - 106 Max. 4.0 - 8.0 1 1 Pushing @ Vtune= +5V 0.2 0.2 MHz/V Frequency Drift Rate 0.8 0.8 MHz/C For price, delivery, and to place orders, please contact Hittite Microwave Corporation: 20 Alpha Road Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order Online at www.hittite.com HMC-C028 v01.1007 WIDEBAND VCO w/ BUFFER AMPLIFIER MODULE, 4 - 8 GHz Frequency vs. Tuning Voltage, T = +25C 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, please contact Hittite Microwave Corporation: 20 Alpha Road Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order Online at www.hittite.com 12 - 107 HMC-C028 v01.1007 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: KOVARTM 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, please contact Hittite Microwave Corporation: 20 Alpha Road Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order Online at www.hittite.com HMC-C028 v01.1007 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, please contact Hittite Microwave Corporation: 20 Alpha Road Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order Online at www.hittite.com CONNECTORIZED MODULES - VCOs 12 Absolute Maximum Ratings 12 - 109