HMC385LP4 / 385LP4E v02.0705 MMIC VCO w/ BUFFER AMPLIFIER, 2.25 - 2.5 GHz Typical Applications Features Low noise MMIC VCO w/Buffer Ampl ifier for: Pout: +4.5 dBm Wireless Infrastructure Phase Noise: -115 dBc/Hz 100 KHz Industrial Controls No External Resonator Needed Test Equipment Single Supply: 3V 35 mA 2 Military QFN Leadless SMT Package, 16 mm Functional Diagram General Description The HMC385LP4 & HMC385LP4E are GaAs InGaP 11 Heterojunction Bipolar Transistor (HBT) MMIC VCOs with integrated resonators, negative resistance devices, varactor diodes, and buffer ampl ifiers. Covering 2.25 to 2.5 GHz, the VCOs phase noise performance is excellent over temperature, shock, vibration and process due to the oscillators monolithic structure. Power output is 4.5 dBm typical from a single supply of 3V 35mA. The voltage controlled oscillator is packaged in a low cost leadless QFN 4x4 mm surface mount package. Electrical Specifi cations, T = +25 C, Vcc = +3V A Parameter Min. Typ. Max. Units Frequency Range 2.25 - 2.5 GHz Power Output 1.5 4.5 dBm SSB Phase Noise 100 kHz Offset, Vtune= +5V RF Output -115 dBc/Hz Tune Voltage (Vtune) 0 10 V Supply Current (Icc) (Vcc = +3.0V) 35 mA Tune Port Leakage Current 10 A Output Return Loss 9dB Harmonics 2nd -7 dBc 3rd -23 dBc Pulling (into a 2.0:1 VSWR) 2.0 MHz pp Pushing Vtune= +5V -2 MHz/V Frequency Drift Rate 0.25 MHz/C Information furnished by Analog Devices is believed to be accurate and reliable. However, no For price, delivery, and to place orders, please coFntaor pcrit Hce, idtteitlie Mvery, icrand owto apvle Cace oordrpeorsr: aAtnioalno:g Devices, Inc., responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106 rights of third parties that may result from its use. Specifications subject to change without notice. No 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 11 - 14 Phone: 781-329-4700 Order online at www.analog.com license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Order On-line at www.hittite.com Trademarks and registered trademarks are the property of their respective owners. Application Support: Phone: 1-800-ANALOG-D VCOS & PLOs - SMTHMC385LP4 / 385LP4E v02.0705 MMIC VCO w/ BUFFER AMPLIFIER, 2.25 - 2.5 GHz Frequency vs. Tuning Voltage, T= 25C Frequency vs. Tuning Voltage, Vcc= +3V 2.6 2.6 2.5 2.5 2.4 2.4 2.3 2.3 2.2 2.2 Vcc=2.75V +25 C Vcc=3.0V +85 C Vcc=3.25V -40 C 2.1 2.1 2 2 01 234 5678 9 10 01 234 5678 9 10 TUNING VOLTAGE (VOLTS) TUNING VOLTAGE (VOLTS) 11 Output Power vs. Sensitivity vs. Tuning Voltage, Vcc= +3V Tuning Voltage, Vcc= +3V 180 8 160 7 140 6 120 +25 C 5 +85 C 100 -40 C 4 80 3 +25 C 60 +85 C -40 C 2 40 1 20 0 0 0 123 456 7 89 10 0 123 456 7 89 10 TUNING VOLTAGE (VOLTS) TUNING VOLTAGE (VOLTS) Phase Noise vs. Tuning Voltage Typical SSB Phase Noise Vtune= +5V -80 0 -10 -85 -20 -30 +25 C -90 -40 +85 C -40 C -50 -95 -60 -70 10 KHz Offset -100 100 KHz Offset -80 -90 -105 -100 -110 -110 -120 -115 -130 -140 -120 -150 3 4 5 6 7 01 234 5678 9 10 10 10 10 10 10 TUNING VOLTAGE (VOLTS) OFFSET FREQUENCY (Hz) Information furnished by Analog Devices is believed to be accurate and reliable. However, no For price, delivery, and to place orders, please coFntaor pcrit Hce, idtteitlie Mvery, icrand owto apvle Cace oordrpeorsr: aAtnioalno:g Devices, Inc., responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106 rights of third parties that may result from its use. Specifications subject to change without notice. No 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 11 - 15 Phone: 781-329-4700 Order online at www.analog.com license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Order On-line at www.hittite.com Trademarks and registered trademarks are the property of their respective owners. Application Support: Phone: 1-800-ANALOG-D SSB PHASE NOISE (dBc/Hz) SENSITIVITY (MHz/VOLT) OUTPUT FREQUENCY (GHz) SSB PHASE NOISE (dBc/Hz) OUTPUT FREQUENCY (GHz) OUTPUT POWER (dBm) VCOS & PLOs - SMT