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首页> 外文期刊>IEEE Journal of Solid-State Circuits >A 60-dB gain, 55-dB dynamic range, 10-Gb/s broad-band SiGe HBTlimiting amplifier
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A 60-dB gain, 55-dB dynamic range, 10-Gb/s broad-band SiGe HBTlimiting amplifier

机译:60 dB增益,55 dB动态范围,10 Gb / s宽带SiGe HBT限制放大器

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A limiting amplifier IC implemented in a silicon-germanium (SiGe)nheterojunction bipolar transistor technology for low-cost 10-Gb/snapplications is described. The IC employs 20 dB gain limiting cells,ninput overload protection, split analog-digital grounds, and on-chipnisolation interface with transmission lines. A gain enhancementntechnique has been developed for a parallel-feedback limiting cell. Thenlimiting amplifier sensitivity is less than 3.5 mVpp atnBER=10-9 with 2-Vpp maximum input (55-dB dynamicnrange). The total gain is over 60 dB, and S21 bandwidthnexceeds 15 GHz at 10-mVpp input. Parameters S11nand S22 are better than -10 dB in the 10-GHz frequency range.nThe AM to PM conversion is less than 5 ps across input dynamic range.nThe output differential voltage can be set from 0.2 to 2 Vppnwith IC power dissipation from 250 mW to 1.1 W. The chip area isn1.2×2.6 mm2. A 10-Gb/s optical receiver, built with thenpackaged limiting amplifier, demonstrated -19.6-dBm sensitivity. The ICncan be used in 10-Gb/s fiber-optic receivers requiring high sensitivitynand wide input dynamic range
机译:描述了一种用于低成本10 Gb / sn应用的以硅锗(SiGe)异质结双极晶体管技术实现的限幅放大器IC。该集成电路采用20 dB增益限制单元,n输入过载保护,分离的模拟数字地以及具有传输线的片上隔离接口。已经开发了一种用于并行反馈限制单元的增益增强技术。然后,在最大输入为2Vpp(55dB动态范围)的情况下,在nBER = 10-9时,限幅放大器的灵敏度小于3.5 mVpp。总增益超过60 dB,并且在10 mVpp输入时S21带宽超过15 GHz。在10 GHz频率范围内,参数S11n和S22优于-10 dB.n在输入动态范围内AM至PM转换小于5 ps.n输出差分电压可设置为0.2至2 Vppn,IC功耗为250 mW至1.1W。芯片面积为1.2×2.6 mm2。内置打包限幅放大器的10 Gb / s光接收器的灵敏度为-19.6-dBm。 ICn可用于需要高灵敏度n和宽输入动态范围的10 Gb / s光纤接收器中

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