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首页> 外文期刊>IEEE Journal of Solid-State Circuits >40-Gb/s circuits built from a 120-GHz f/sub T/ SiGe technology
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40-Gb/s circuits built from a 120-GHz f/sub T/ SiGe technology

机译:采用120 GHz f / sub T / SiGe技术构建的40 Gb / s电路

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Product designs for 40-Gb/s applications fabricated from SiGe BiCMOS technologies are now becoming available. In this paper we first briefly discuss heterojunction bipolar transistor (HBT) device operation at high speed, demonstrating that perceived concerns regarding lower BV/sub CEO/ and higher current densities required to operate silicon HBTs at such high speeds do not in actuality limit design or performance. The high-speed portions of the 40-Gb/s system are then addressed individually. We demonstrate the digital capability through a 4: 1 multiplexer and a 1 : 4 demultiplexer running over 50 Gb/s error free at a -3.3-V power supply. We also demonstrate a range of analog elements, including a lumped limiting amplifier which operates with a 35-GHz bandwidth, a transimpedance amplifier with 220-/spl Omega/ gain and 49.1-GHz bandwidth, a 21.5-GHz voltage-controlled oscillator with over -100-dBc/Hz phase noise at 1-MHz offset, and a modulator driver which runs a voltage swing twice the BV/sub CEO/ of the high-speed SiGe HBT. These parts demonstrate substantial results toward product offerings, on each of the critical high-speed elements of the 40-Gb/s system.
机译:现在可以使用SiGe BiCMOS技术制造的用于40 Gb / s应用的产品设计。在本文中,我们首先简要讨论了异质结双极晶体管(HBT)器件的高速运行,这表明人们对降低BV / sub CEO /和以如此高的速度运行硅HBT所需的较高电流密度的担忧在现实中并不限制设计或性能。然后分别解决40 Gb / s系统的高速部分。我们通过一个4:1多路复用器和一个1:4多路分离器在-3.3-V电源下以超过50 Gb / s的速度无故障运行来证明其数字能力。我们还演示了一系列模拟元件,包括以35 GHz带宽工作的集总限幅放大器,具有220- / spl Omega /增益和49.1 GHz带宽的互阻放大器,具有21.5 GHz以上频率的21.5 GHz压控振荡器相位噪声为1 MHz偏移时为-100 dBc / Hz,调制器驱动器的电压摆幅为高速SiGe HBT的BV / sub CEO /的两倍。这些零件在40 Gb / s系统的每个关键高速元件上都展示了产品提供的实质性成果。

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