排序方式: 共有63条查询结果,搜索用时 15 毫秒
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This work presents an ultra-high speed 2 : 1 multiplexer (MUX) in a SiGe BiCMOS technology with fT = 103 GHz. To boost the operating speed, the system scheme is optimized including a 2 : 1 selector circuit directly driving an external 50 Ω load, and two wide-band data buffers and one clock buffer in the input stage. The chip exhibited an open eye at 80 Gb/s with a 160 mV single-ended voltage swing. 相似文献
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讨论了基于MOS晶体管亚阈值区特性的CMOS四象限模拟乘法器的设计。分析了四种乘法器核的直流传输特性,给出的PSPICE模拟结果验证了理论分析。模拟结果表明,对于电源电压为1.5V(或±1.5V),当输入电压范围限于±0.08V时,非线性误差小于1%;-3dB带宽约为340kHz,静态功耗小于1μW。给出的乘法器核可应用在便携式电子系统模拟信号处理电路中,特别适于在神经网络系统中的应用。 相似文献
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《偏微分方程通讯》2013,38(7-8):1625-1658
ABSTRACT It is shown that small perturbations of equilibrium states in ferromagnetic media give rise to standing and traveling waves that are stable for long times. The evolution of the wave profiles is governed by semilinear heat equations. The mathematical model underlying these results consists of the Landau–Lifshitz equation for the magnetization vector and Maxwell's equations for the electromagnetic field variables. The model belongs to a general class of hyperbolic equations for vector-valued functions, whose asymptotic properties are analyzed rigorously. The results are illustrated with numerical examples. 相似文献
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