HMC586LC4B v02.0810 WIDEBAND MMIC VCO w/ BUFFER AMPLIFIER, 4 - 8 GHz Typical Applications Features Low Noise wideband MMIC VCO is ideal for: Wide Tuning Bandwidth • Industrial/Medical Equipment Pout: +5 dBm • Test & Measurement Equipment Low SSB Phase Noise: -100 dBc/Hz @100 kHz • Military Radar, EW & ECM No External Resonator Needed Single Positive Supply: +5V @ 55 mA RoHS Compliant 4 x 4 mm SMT Package Functional Diagram The HMC586LC4B is a wideband GaAs InGaP Voltage Controlled Oscillator which incorporates the resonator, negative resistance device, and varactor diode. Output power and phase noise performance are excellent over temperature due to the oscillator’s monolithic construction. The Vtune port accepts an analog tuning voltage from 0 to +18V. The HMC586LC4B VCO operates from a single +5V supply, consumes only 55 mA of current, and is housed in a RoHS compliant SMT package. This wideband VCO uniquely combines the attributes of ultra small size, low phase noise, low power consumption, and wide tuning range. 8 WIDEBAND VCOS - SMT General Description Electrical Specifi cations, TA = +25° C, Vcc = +5V Parameter Min. Frequency Range Power Output Typ. 2 Units GHz 5 dBm SSB Phase Noise @ 100 kHz Offset -100 dBc/Hz SSB Phase Noise @ 10 kHz Offset -75 dBc/Hz Tune Voltage (Vtune) 0 18 V Supply Current (Icc) (Vcc = +5.0V) 40 75 mA 10 μA Tune Port Leakage Current (Vtune = +15V) Output Return Loss 2nd Harmonic 8-1 Max. 4.0 - 8.0 7 dB -14 dBc Pulling (into a 2.0:1 VSWR) 4 MHz pp Pushing @ Vtune= +5V 40 MHz/V Frequency Drift Rate 0.8 MHz/°C For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or [email protected] HMC586LC4B v02.0810 WIDEBAND MMIC VCO w/ BUFFER AMPLIFIER, 4 - 8 GHz Frequency vs. Tuning Voltage, Vcc = +5V Frequency vs. Tuning Voltage, T = +25 C 9 OUTPUT FREQUENCY (GHz) 8 7 6 4.75 V 5.0 V 5.25 V 5 4 3 8 7 6 +25 C +85 C -40 C 5 4 3 0 2 4 6 8 10 12 14 16 18 20 0 2 4 TUNING VOLTAGE (VOLTS) Sensitivity vs. Tuning Voltage, Vcc= +5V 10 12 14 16 18 20 10 +25 C +85 C -40 C 500 8 8 OUTPUT POWER (dBm) SENSITIVITY (MHz/VOLT) 8 Output Power vs. Tuning Voltage, Vcc= +5V 600 400 300 200 100 6 4 2 0 +25 C +85 C -40 C -2 -4 0 0 2 4 6 8 10 12 14 16 18 0 20 TUNING VOLTAGE (VOLTS) 2 4 6 8 10 12 14 16 18 20 TUNING VOLTAGE (VOLTS) Typical SSB Phase Noise @ Vtune= +5V SSB Phase Noise vs. Tuning Voltage 0 0 -15 SSB PHASE NOISE (dBc/Hz) SSB PHASE NOISE (dBc/Hz) 6 TUNING VOLTAGE (VOLTS) 10 kHz 100 kHz -30 -45 -60 -75 -90 -105 -120 0 2 4 6 8 10 12 14 TUNING VOLTAGE (VOLTS) 16 18 20 -20 -40 -60 WIDEBAND VCOS - SMT OUTPUT FREQUENCY (GHz) 9 -80 -100 -120 2 10 3 10 4 10 5 10 6 10 OFFSET FREQUENCY (Hz) For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or [email protected] 8-2 HMC586LC4B v02.0810 WIDEBAND MMIC VCO w/ BUFFER AMPLIFIER, 4 - 8 GHz Absolute Maximum Ratings Vcc +5.5 Vdc Vtune 0 to +22V Junction Temperature 135 °C Continuous Pdiss (T = 85°C) (derate 12.5 mW/°C above 85°C) 625 mW Thermal Resistance (junction to ground paddle) 80 °C/W Storage Temperature -65 to +150 °C Operating Temperature -40 to +85 °C ELECTROSTATIC SENSITIVE DEVICE OBSERVE HANDLING PRECAUTIONS Outline Drawing WIDEBAND VCOS - SMT 8 8-3 NOTES: 1. PACKAGE BODY MATERIAL: ALUMINA 2. LEAD AND GROUND PADDLE PLATING: GOLD FLASH OVER Ni. 3. DIMENSIONS ARE IN INCHES [MILLIMETERS]. 4. LEAD SPACING TOLERANCE IS NON-CUMULATIVE. 5. PACKAGE WARP SHALL NOT EXCEED 0.05mm DATUM -C6. ALL GROUND LEADS AND GROUND PADDLE MUST BE SOLDERED TO PCB RF GROUND. Pin Descriptions Pin Number Function Description 1 - 3, 5 - 11, 13, 17 - 24 N/C No Connection. These pins may be connected to RF/DC ground. Performance will not be affected. 4 Vtune Control Voltage and Modulation Input. Modulation bandwidth dependent on drive source impedance. See “Determining the FM Bandwidth of a Wideband Varactor Tuned VCO” application note. 12 Vcc Supply Voltage Vcc= +5V Interface Schematic For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or [email protected] HMC586LC4B v02.0810 WIDEBAND MMIC VCO w/ BUFFER AMPLIFIER, 4 - 8 GHz Pin Descriptions Pin Number Function Description Interface Schematic 14, 16 GND Package bottom has an exposed metal paddle that must also be RF & DC grounded. 15 RFOUT RF output (AC coupled) Evaluation PCB List of Materials for Evaluation PCB 108648 [1] Item Description J1 PCB Mount SMA RF Connector, Johnson J2 PCB Mount SMA Connector, SRI J3 DC Header C1 1000 pF Capacitor, 0402 Pkg. C2 4.7 μF Capacitor, Tantalum U1 HMC586LC4B VCO PCB [2] 108646 Eval Board [1] Reference this number when ordering complete evaluation PCB The circuit board used in the application should use RF circuit design techniques. Signal lines should have 50 Ohm impedance while the package ground leads and exposed ground paddle should be connected directly to the ground plane similar to that shown. A sufficient number of via holes should be used to connect the top and bottom ground planes. The evaluation circuit board shown is available from Hittite upon request. WIDEBAND VCOS - SMT 8 [2] Circuit Board Material: Rogers 4350 For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or [email protected] 8-4