HMC391LP4 / 391LP4E v03.0209 MMIC VCO w/ BUFFER AMPLIFIER, 3.9 - 4.45 GHz Typical Applications Features Low noise MMIC VCO w/Buffer Amplifier for: Pout: +5.0 dBm • VSAT & Microwave Radio Phase Noise: -106 dBc/Hz @100 KHz • Radio Altimetry No External Resonator Needed • Test Equipment & Industrial Controls Single Supply: +3V @ 30 mA • Military 24 Lead 4x4mm QFN Package: 9 mm2 Functional Diagram General Description The HMC391LP4 & HMC391LP4E are GaAs InGaP Heterojunction Bipolar Transistor (HBT) MMIC VCOs with integrated resonators, negative resistance devices, varactor diodes, and buffer amplifiers. Covering 3.9 to 4.45 GHz, the VCO’s phase noise performance is excellent over temperature, shock, vibration and process due to the oscillator’s monolithic structure. Power output is 5.0 dBm typical from a single supply of +3V @ 30 mA. The voltage controlled oscillator is packaged in a low cost leadless QFN 4 x 4 mm surface mount package. VCOS - SMT 12 Electrical Specifi cations, TA = +25° C, Vcc = +3V Parameter Min. Frequency Range Power Output 1.5 SSB Phase Noise @ 100 kHz Offset, Vtune= +5V @ RF Output Tune Voltage (Vtune) Supply Current (Icc) (Vcc = +3V) Typ. 12 - 30 Units GHz 5.0 dBm -106 dBc/Hz 0 30 Tune Port Leakage Current Output Return Loss Max. 3.9 - 4.45 10 V 40 mA 10 μA 7 dB Harmonics 2nd 3rd -9 -23 dBc dBc Pulling (into a 2.0:1 VSWR) 8.0 MHz pp Pushing @ Vtune= +5V 16 MHz/V Frequency Drift Rate 0.5 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 On-line at www.hittite.com HMC391LP4 / 391LP4E v03.0209 MMIC VCO w/ BUFFER AMPLIFIER, 3.9 - 4.45 GHz Frequency vs. Tuning Voltage, Vcc= +3V 4.7 4.7 4.6 4.6 OUTPUT FREQUENCY (GHz) 4.5 4.4 4.3 4.2 4.1 4 Vcc=2.75V Vcc=3.0V Vcc=3.25V 3.9 3.8 3.7 4.5 4.4 4.3 4.2 4.1 4 +25 C +85 C -40 C 3.9 3.8 3.7 3.6 3.6 0 1 2 3 4 5 6 7 8 9 10 0 1 2 TUNING VOLTAGE (VOLTS) 5 6 7 8 9 10 12 8 7 +25 C +85 C -40 C 6 5 4 3 +25 C +85 C -40 C 2 1 0 0 1 2 3 4 5 6 7 8 9 10 0 1 2 3 TUNING VOLTAGE (VOLTS) -65 SSB PHASE NOISE (dBc/Hz) -70 -75 -80 -85 10 KHz Offset -95 100 KHz Offset -100 -105 -110 -115 -120 0 1 2 3 4 5 6 7 TUNING VOLTAGE (VOLTS) 5 6 7 8 9 10 Typical SSB Phase Noise @ Vtune= +5V -60 -90 4 TUNING VOLTAGE (VOLTS) Phase Noise vs. Tuning Voltage SSB PHASE NOISE (dBc/Hz) 4 Output Power vs. Tuning Voltage, Vcc= +3V OUTPUT POWER (dBm) SENSITIVITY (MHz/VOLT) Sensitivity vs. Tuning Voltage, Vcc= +3V 300 280 260 240 220 200 180 160 140 120 100 80 60 40 20 3 TUNING VOLTAGE (VOLTS) VCOS - SMT OUTPUT FREQUENCY (GHz) Frequency vs. Tuning Voltage, T= 25°C 8 9 10 0 -10 -20 -30 -40 -50 -60 -70 -80 -90 -100 -110 -120 -130 -140 -150 3 10 +25 C +85 C -40 C 4 10 5 10 6 10 7 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 On-line at www.hittite.com 12 - 31 HMC391LP4 / 391LP4E v03.0209 MMIC VCO w/ BUFFER AMPLIFIER, 3.9 - 4.45 GHz Absolute Maximum Ratings Typical Supply Current vs. Vcc Vcc +3.5 Vdc Vcc (V) Icc (mA) Vtune 0 to +11V 2.75 22 Channel Temperature 135 °C 3.0 30 3.25 39 Continuous Pdiss (T = 85°C) (derate 3 mW/°C above 85°C) 150 mW Thermal Resistance (junction to ground paddle) 333 °C/W Storage Temperature -65 to +150 °C Operating Temperature -40 to +85 °C Note: VCO will operate over full voltage range shown above. ELECTROSTATIC SENSITIVE DEVICE OBSERVE HANDLING PRECAUTIONS Outline Drawing VCOS - SMT 12 NOTES: 1. LEADFRAME MATERIAL: COPPER ALLOY 2. DIMENSIONS ARE IN INCHES [MILLIMETERS]. 3. LEAD SPACING TOLERANCE IS NON-CUMULATIVE 4. PAD BURR LENGTH SHALL BE 0.15mm MAXIMUM. PAD BURR HEIGHT SHALL BE 0.05mm MAXIMUM. 5. PACKAGE WARP SHALL NOT EXCEED 0.05mm. 6. ALL GROUND LEADS AND GROUND PADDLE MUST BE SOLERED TO PCB RF GROUND. 7. REFER TO HITTITE APPLICATION NOTE FOR SUGGESTED PCB LAND PATTERN Package Information Part Number Package Body Material Lead Finish MSL Rating HMC391LP4 Low Stress Injection Molded Plastic Sn/Pb Solder MSL1 HMC391LP4E RoHS-compliant Low Stress Injection Molded Plastic 100% matte Sn MSL1 Package Marking [3] [1] H391 XXXX [2] H391 XXXX [1] Max peak reflow temperature of 235 °C [2] Max peak reflow temperature of 260 °C [3] 4-Digit lot number XXXX 12 - 32 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 On-line at www.hittite.com HMC391LP4 / 391LP4E v03.0209 MMIC VCO w/ BUFFER AMPLIFIER, 3.9 - 4.45 GHz Pin Descriptions Function Description Interface Schematic 1- 14, 17 - 19, 21, 23, 24 N/C No Connection 15 GND This pin must be connected to RF & DC ground. Package bottom has an exposed metal paddle that must be RF & DC grounded. 16 RFOUT RF output (AC coupled) 20 Vcc Supply Voltage Vcc= 3V 22 VTUNE Control Voltage Input. Modulation port bandwidth dependent on drive source impedance. 12 VCOS - SMT Pin Number Evaluation PCB List of Materials for Evaluation PCB 105706 [1] Item Description J1 - J2 PCB Mount SMA RF Connector J3 - J4 DC Pin C1 4.7 μF Tantalum Capacitor C2 10,000 pF Capacitor, 0603 Pkg. U1 HMC391LP4 / HMC391LP4E VCO PCB [2] 105667 Eval Board [1] Reference this number when ordering complete evaluation PCB [2] Circuit Board Material: Rogers 4350 The circuit board used in the final application should use RF circuit design techniques. Signal lines should have 50 ohm impedance while the package ground leads and exposed 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. 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 On-line at www.hittite.com 12 - 33