HMC712LP3C v06.0312 GaAs MMIC VOLTAGE-VARIABLE ATTENUATOR, 5 - 26.5 GHz Typical Applications Features The HMC712LP3CE is ideal for: Wide Bandwidth: 5 - 26.5 GHz Excellent Linearity: +28 dBm Input P1dB Point-to-Point Radio VSAT Radio Wide Attenuation Range: 28 dB Absorptive Topology Test Instrumentation Microwave Sensors Singe or Dual Control Operation 16 Lead 3x3mm SMT Package: 9mm Military, ECM & Radar General Description Functional Diagram The HMC712LP3CE is an absorptive Voltage Var- iable Attenuator (VVA) which operates from 5 - 26.5 GHz and is ideal in designs where an analog DC control signal must be used to control RF signal levels over a 28 dB amplitude range. It features two shunt-type attenuators which are controlled by two analog voltages, Vctrl1 and Vctrl2. Optimum linearity performance of the attenuator is achieved by first varying Vctrl1 of the 1st attenuation stage from -3V to 0V with Vctrl2 fixed at -3V. The control voltage of the 2nd attenuation stage, Vctrl2, should then be varied from -3V to 0V, with Vctrl1 fixed at 0V. The HMC712LP3CE is housed in a RoHS compliant 3x3 mm QFN leadless package However, if the Vctrl1 and Vctrl2 pins are connected together it is possible to achieve the full analog attenuation range with only a small degradation in input IP3 performance. Applications include AGC circuits and temperature compensation of multiple gain stages in microwave point-to-point and VSAT radios. Electrical Specifications, T = +25 C, 50 Ohm system A Parameter Min. Typ. Max. Units 5 - 16 GHz 3.5 dB Insertion Loss 16 - 24 GHz 4.5 dB 24 - 26.5 GHz 5.5 dB Attenuation Range 28 dB Input Return Loss 12 dB Output Return Loss 10 dB Input Power for 1 dB Compression (any attenuation) 28 dBm Input Third Order Intercept (Two-tone Input Power = 10 dBm Each Tone) 32 dBm Information furnished by Analog Devices is believed to be accurate and reliable. However, no For price, delivery, and to place orders: Analog Devices, Inc., For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, Chelmsford, MA 01824 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 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com 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. 1 Trademarks and registered trademarks are the property of their respective owners. Application Support: Phone: 1-800-ANALOG-D Application Support: Phone: 978-250-3343 or apps hittite.com ATTENUATOR - ANALOG - SMTHMC712LP3C v06.0312 GaAs MMIC VOLTAGE-VARIABLE ATTENUATOR, 5 - 26.5 GHz Attenuation vs. Frequency over Vctrl Attenuation vs. Frequency over Vctrl Vctrl1 = Variable, Vctrl2 = -3V Vctrl1 = 0V, Vctrl2 = Variable 0 0 -10 -5 -20 -30 -10 -3.0 V -3.0 V -1.6 V -1.8 V -1.2 V -40 -1.4 V -0.6 V -0.8 V 0.0 V 0.0 V -15 -50 2 6 10 14 18 22 26 30 2 6 10 14 18 22 26 30 FREQUENCY (GHz) FREQUENCY (GHz) Attenuation vs. Vctrl1 Attenuation vs. Vctrl2 Over Temperature 10 GHz, Vctrl2 = -3V Over Temperature 10 GHz, Vctrl1 = 0V 0 0 -5 -2 -10 -4 -15 -20 -6 +25 C +85 C -40 C -25 +25 C -8 +85 C -40 C -30 -10 -35 -3 -2.5 -2 -1.5 -1 -0.5 0 -3 -2.5 -2 -1.5 -1 -0.5 0 Vctrl1 (V) Vctrl2 (V) Attenuation vs. Pin 10 GHz Vctrl1 = Variable, Vctrl2 = -3V 0 -2 -4 -6 -8 -3.0 V -1.0 V -10 -1.8 V -0.4 -1.4 V 0.0 V -12 0 5 10 15 20 INPUT POWER (dBm) Information furnished by Analog Devices is believed to be accurate and reliable. However, no For price, delivery, and to place orders: Analog Devices, Inc., For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, Chelmsford, MA 01824 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 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com 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. 2 Trademarks and registered trademarks are the property of their respective owners. Application Support: Phone: 1-800-ANALOG-D Application Support: Phone: 978-250-3343 or apps hittite.com ATTENUATION (dB) ATTENUATION (dB) ATTENUATION (dB) ATTENUATION (dB) ATTENUATION (dB) ATTENUATOR - ANALOG - SMT