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    • 2. 发明授权
    • Integrated circuit having a mixer circuit
    • 具有混频电路的集成电路
    • US07509111B2
    • 2009-03-24
    • US10978242
    • 2004-10-29
    • Jorg LangenbergThomas LiebermannWerner SimburgerMarc TieboutHans-Dieter Wohlmuth
    • Jorg LangenbergThomas LiebermannWerner SimburgerMarc TieboutHans-Dieter Wohlmuth
    • H04B1/40
    • H03D7/1441H03D7/1433H03D7/1458H03D2200/0033H03D2200/0084
    • Integrated circuit including a mixer circuit, which has a first circuit section, a second circuit section, and a transformer. The first circuit section has two radiofrequency terminals. The second circuit section has two reference oscillator terminals, an active mixer unit with a signal-amplifying unit, and two intermediate frequency terminals. The active mixer unit and the signal-amplifying unit have a common current path. The transformer directly electrically decouples the two radiofrequency terminals from the active mixer unit, and couples the first circuit section and the second circuit section together such that each of the two circuit sections is separately supplied with a full operating voltage of the integrated circuit. The integrated circuit may additionally include a second transformer connected between the active mixer unit and the two intermediate frequency terminals.
    • 包括具有第一电路部分,第二电路部分和变压器的混频器电路的集成电路。 第一电路部分有两个射频终端。 第二电路部分具有两个参考振荡器端子,具有信号放大单元的有源混频器单元和两个中频终端。 有源混频器单元和信号放大单元具有公共电流路径。 变压器将两个射频终端直接电耦合到有源混频器单元,并且将第一电路部分和第二电路部分耦合在一起,使得两个电路部分中的每一个分别被提供有集成电路的完整工作电压。 集成电路还可以包括连接在有源混频器单元和两个中频终端之间的第二变压器。