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A non-ideal return path in the printed circuit board (PCB) with a split reference plane will increase electromagnetic interference (EMI) that is encountered in the digital LCD-TV system using a 2-layer PCB. An innovative layout skill using the surface mounted jumpers or zero ohm resistors to connect the power nets in the PCB and DDR SDRAM can avoid the split reference plane in the bottom layer. From...
A new scalable noise and small-signal model for deep-submicrometer metal-oxide semiconductor field-effect transistors, which consist of multiple elementary cells is presented in this paper. It allows exact modeling of all noise and small-signal model parameters from elementary cell to large-size device. The scalable rules for noise and small-signal model parameters are given in detail. The experimental...
Second-order nonlinearity of the MOSFET has significant impact on active inductor (AI) based oscillators, regardless of whether they are single-ended or differential. By using Taylor series expansion, this paper shows that second-order nonlinearity of the MOSFET will cause a shift in the DC biasing of an AI-based oscillator, depending on oscillation amplitude. The DC bias shift results in a change...
We present two-dimensional simulations of one-finger power Heterojunction Bipolar Transistors (HBTs) on GaAs. Several important physical models are discussed. We demonstrate good agreement of simulations of four different types of devices with measured data in a wide temperature range. In addition, we were able, by accounting properly for self-heating, to simulate correctly the output device characteristics...
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