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attenuator - analog - smt 1 HMC712ALP3C v00.1115 gaas mmic voltage-variable attenuator, 5 - 26.5 ghz general description features functional diagram wide bandwidth: 5 - 26.5 ghz excellent linearity: +28 dbm input p1db wide attenuation range: 28 db absorptive topology singe or dual control operation 16 lead 3x3mm smt package: 9mm2 electrical specifcations, t a = +25 c, 50 ohm system typi c al applications the hmc712a lp3ce is ideal for: ? point-to-point radio ? vsat radio ? test instrumentation ? microwave sensors ? military, ecm & radar the hmc712 a lp3ce is an absorptive voltage var- iab l e attenuator (vva) which operates from 5 - 26.5 ghz and is ideal in designs where an analog dc cont rol signal must be used to control rf signal levels over a 28 db amplitude range. it features two shun t-type attenuators which are controlled by two analog voltages, vctrl1 and vctrl2. optimum linearity performance of the attenuator is achieved by frst varying vctrl1 of the 1st attenuation stage from -3v to 0v with vctrl2 fxed 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 hmc712a lp3ce 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. parameter min. typ. max. units insertion loss 5 - 16 ghz 16 - 24 ghz 24 - 26.5 ghz 3.5 4.5 5.5 db db 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 responsibility is assumed by analog devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. specifications subject to change without notice. no license is granted by implication or otherwise under any patent or patent rights of analog devices. trademarks and registered trademarks are the property of their respective owners. for price, delivery, and to place orders: analog devices, inc., one technology way, p.o. box 9106, norwood, ma 02062-9106 phone: 781-329-4700 order online at www.analog.com application support: phone: 1-800-analog-d preliminary
attenuator - analog - smt 2 HMC712ALP3C v00.1115 gaas mmic voltage-variable attenuator, 5 - 26.5 ghz outline drawing notes: 1. package body material: low stress injection molded plastic silica and silicon impregnated. 2. lead and ground paddle material: copper alloy. 3. lead and ground paddle plating: 100% matte tin. 4. dimensions are in inches [millimeters]. 5. lead spacing tolerance is non-cumulative. 6. pad burr length shall be 0.15mm max. pad burr height shall be 0.05mm max. 7. package warp shall not exceed 0.05mm 8. all ground leads and ground paddle must be soldered to pcb rf ground. 9. refer to hittite application note for suggested pcb land pat tern. for price, delivery, and to place o rd ers: analog devices, inc., one techn ol ogy way, p.o. box 9106, norwood, ma 02062-9106 pho ne: 781-329-4700 o rd er on line at ww w.anal og .com application support: p ho ne: 1-800-analog-d absolute maximum ratings rf input power +30 dbm control voltage range +1 to -5v channel temperature 150 c continuous pdiss (t = 85 c) 1w thermal resistance (channel to ground paddle) 66 c/w storage temperature -65 to +150 c operating temperature -40 to +85 c esd sensitivity (hbm) class 1a electrostatic sensitive device observe handling precautions control voltages vctrl1 -3 to 0v @ 10 a vctrl2 -3 to 0v @ 10 a preliminary
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