HMC732LC4B v00.0410 WIDEBAND MMIC VCO w/ BUFFER AMPLIFIER, 6 - 12 GHz Typical Applications Features Low Noise wideband MMIC VCO is ideal for: Wide Tuning Bandwidth • Industrial/Medical Equipment Pout: +1 dBm • Test & Measurement Equipment Low SSB Phase Noise: -95 dBc/Hz @100 kHz • Military Radar, EW & ECM No External Resonator Needed Single Positive Supply: +5V @ 57 mA 24 Lead Ceramic 4x4 mm SMT Package: 16 mm² Functional Diagram The HMC732LC4B is a wideband GaAs InGaP HBT MMIC 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 +23V. The HMC732LC4B VCO operates from a single +5V supply, consumes only 57 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. WIDEBAND VCOS - SMT 8 Electrical Specifications, TA = +25 °C, Vcc = +5V Parameter Min. Frequency Range Typ. Max. 6 - 12 Power Output Units GHz 1 dBm SSB Phase Noise @ 10 kHz Offset -65 dBc/Hz SSB Phase Noise @ 100 kHz Offset -95 dBc/Hz Tune Voltage (Vtune) 0 23 V Supply Current (Icc) (Vcc = +5V) 57 mA Tune Port Leakage Current (Vtune = +23V) 10 µA Output Return Loss 15 dB 2nd Harmonic -12 dBc 7 MHz pp -85 MHz/V Frequency Drift Rate @ 6 GHz 0.4 MHz/°C Frequency Drift Rate @ 12 GHz 0.25 MHz/°C Pulling (into a 2.0:1 VSWR) Pushing @ Vtune= +20V, F = 12 GHz 8-1 General Description 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] HMC732LC4B v00.0410 WIDEBAND MMIC VCO w/ BUFFER AMPLIFIER, 6 - 12 GHz Frequency vs. Tuning Voltage, T = +25 °C 15 15 14 14 13 13 OUTPUT FREQUENCY (GHz) 12 11 10 9 +25C +85C -40C 8 7 6 5 0 5 10 15 20 12 11 10 9 7 6 5 25 4.75V 5.00V 5.25V 8 0 5 10 TUNING VOLTAGE (Vdc) Sensitivity vs. Tuning Voltage, Vcc = +5V OUTPUT POWER (dBm) TUNING SENSITIVITY (MHz/VOLT) 350 300 250 200 +25C +85C -40C 150 0 5 10 15 20 4 2 0 -2 -4 25 8 +25C +85C -40C 6 400 0 5 10 TUNING VOLTAGE (Vdc) 15 20 25 TUNING VOTLAGE (Vdc) Typical SSB Phase Noise @ Vtune = +5V SSB Phase Noise vs. Tuning Voltage -20 -10 10 kHz 100 kHz 1 MHz -30 SSB PHASE NOISE (dBc/Hz) -40 SSB PHASE NOISE (dBc/Hz) 25 8 450 -60 -80 -100 -120 -140 20 Output Power vs. Tuning Voltage, Vcc = +5V 500 100 15 TUNING VOLTAGE (Vdc) 0 5 10 15 TUNING VOLTAGE (Vdc) 20 25 + 25C + 85C - 40C -50 -70 -90 WIDEBAND VCOS - SMT OUTPUT FREQUENCY (GHz) Frequency vs. Tuning Voltage, Vcc = +5V -110 -130 -150 1e+3 1e+4 1e+5 1e+6 1e+7 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 HMC732LC4B v00.0410 WIDEBAND MMIC VCO w/ BUFFER AMPLIFIER, 6 - 12 GHz Absolute Maximum Ratings Supply Current vs. Vcc, T = 25 °C 65 60 Icc (mA) 55 +5.5 V Vtune -1 to +25V Storage Temperature -65 °C to +150 °C ESD Sensitivity (HBM) Class 1A ELECTROSTATIC SENSITIVE DEVICE OBSERVE HANDLING PRECAUTIONS 50 4.75V 5.00V 5.25V 45 40 0 5 10 15 TUNING VOLTAGE (Vdc) 8 WIDEBAND VCOS - SMT Vcc 20 25 Reliability Information Junction Temperature To Maintain 1 Million Hour MTTF 135 °C Nominal Junction Temperature (T = 85 °C) 110 °C Thermal Resistance (Junction to GND paddle, 5V supply) 91 °C/W Operating Temperature -40 °C to + 85 °C Outline Drawing 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. 8-3 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] HMC732LC4B v00.0410 WIDEBAND MMIC VCO w/ BUFFER AMPLIFIER, 6 - 12 GHz Pin Descriptions Pin Number Function Description 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 14 GND Package bottom has an exposed metal paddle that must also be RF & DC grounded. 15 RFOUT RF output (AC coupled) Interface Schematic 8 WIDEBAND VCOS - SMT 1 - 3, 5 - 11, 13, 16 - 24 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 HMC732LC4B v00.0410 WIDEBAND MMIC VCO w/ BUFFER AMPLIFIER, 6 - 12 GHz Evaluation PCB WIDEBAND VCOS - SMT 8 List of Materials for Evaluation PCB 108648 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 HMC732LC4B VCO PCB [2] 108646 Eval Board [1] Reference this number when ordering complete evaluation PCB [1] 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. [2] Circuit Board Material: Rogers 4350 8-5 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] HMC732LC4B v00.0410 WIDEBAND MMIC VCO w/ BUFFER AMPLIFIER, 6 - 12 GHz Notes: WIDEBAND VCOS - SMT 8 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] 8-6