HE892/HEM892 B O WEI Voltage Variable Attenuators BOWEI INTEGRATED CIRCUITS CO.,LTD. Typical Performance Attenuation VS. Frequency 0 7.0V 2.0V Attenuation(dB) 10 Features ●Thin film coustraction package ●Operating temperature range : -55℃ ～+85℃ ●Hermetic 20 0.8V 30 0.6V 40 0V 50 60 70 80 20 200 400 600 800 1000 Frequency(MHz) Specifications( measured in a 50Ωsystem ,Vcc=+5V, TA=-55℃～+85℃) Parameter Unit 2.2 Frequency Range fL～fH MHz 20～1000 – Attenuation(Max) AMax dB 40.0 – Insertion loss IL dB 2. 8 2.5 – 1.8:1 1.5:1 V mA 1.8:1 1.5:1 – 10 – 0～7/0～10 VSWR of input/output VSWR VSWR of output VSWR DC Current ICC Control voltage/Current VCO/ ICO V/mA VSWR VS .Frequency Typical Guaranteed 2.0 1.8 VSWR Symbol 1.6 1.4 VSWRi 1.2 VSWRo 1.0 20 200 400 600 800 1000 Frequency(MHz) Attenuation VS.Temperatare 1 DC Supply: +7VDC Input Power:+23dBm Storage Temp:+125℃ 1 4 2 HEMXXX 2 Lot number 3 3 SMO-8C TO-8A-1 Application Notes 4 Attenuation(dB) Absolute Maximum Ratings 0 10 2.0V 20 0.8V 30 1.Functional schematic shown as following,which include an internal coupling capacitor. 2.Interexchangable input and output ports 3 . See assembly section for mounting method Ta=+25℃ Ta=+85℃ Ta= - 55℃ 20 200 400 600 800 1000 Frequency(MHz) Attenuation VS.Control voltage 0 4 2 HExxx 3 1.VCC 2.RF input 3.VCO 4.RF output The metal case is Ground Attenuation(dB) f=1000MHz 5 1 20 40 60 80 0 2 4 6 8 10 Control voltage(V) ● TEL:+86-311-87091891 87091887 ● FAX:+86-311-87091282 ● http://www.cn-bowei.com ● E-mail:[email protected] 14