Hittite Microwave公司成立于1985年，是全球领先的基于微波射频MMIC/RFIC方案设计和制造商,主要为射频和微波应用制造从DC到110GHz的单片微波集成电路芯片和模块。特别是微波MMIC开关，微波MMIC衰减器和MMIC混频器产品，更是在全球范围内有着极强的竞争力和很高的市场占有率，被广泛应用于蜂窝移动通信设备、宽带无线产品、CATV/LNB和测试仪表。Freq. (GHz)FunctionInsertion Loss (dB)Isolation (dB)IP1dB (dBm)Control Input (Vdc)PackageDC - 3SPDT, Hi Isolation0.750230/ +5VMS8Features• Ultra Small Package: MSOP8• High Isolation: 50 dB• Positive Control: 0/+3V to 0/+7VTypical Applications• Cellular/PCS Base Stations• Portable Wireless• MMDS & WirelessLANFunctional DiagramGeneral DescriptionThe HMC194MS8(E) is a low-cost SPDT switch in an 8-lead MSOP packag for use in applications which require high isolation between two RF paths. The devices can control signals from DC to 3 GHz and have been optimized to provide extremely high isolation with minimal insertion loss in medium and low power applications. On chip circuitry allows positive voltage control operation at very low DC cur- rents with control inputs compatible with CMOS and most TTL logic families. RF1 and RF2 are reflective opens when “OFF”. 浩时健电子提供HITTITE全系列开关产品，全系原装，欢迎订购：   HMC154S8    DC-4.0GHz 低变形T/R开关    HMC174S8    DC-3GHz T/R开关    HMC182S14    DC-2.0GHz SP4T无反射开关    HMC183QS24    DC-2.0GHz SP8T无反射开关    HMC190MS8    DC-3GHz SPDT开关    HMC194MS8    DC-3GHz SPDT开关    HMC195    DC-2.5GHz SOT26 T/R开关    HMC197    DC-3GHz SOT26 SPDT开关    HMC199MS8    DC-2.5GHz 双SPDT开关    HMC211    DC-3GHz SOP26 SPDT开关    HMC224MS8    5.0-6.0GHz T/R开关    HMC226    DC-2.0GHz +3V SOT26传收开关    HMC231G7    DC-6.0GHz 高隔离SPST开关    HMC232C8    DC-8.0GHz 高隔离SPST开关    HMC232G7    DC-6.0GHz 高隔离SPDT开关    HMC232G8    DC-6.0GHz 高隔离SPDT开关    HMC232LP4    DC-12.0GHz SPDT无反射开关    HMC233G8    DC-6.0GHz 高隔离SPDT开关    HMC234C8    DC-8.0GHz 高隔离SPDT开关