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CMOS RC oscillators have low area, can be built with a low cost technology, and have a wide tuning range, but they have higher phase-noise than LC oscillators. This can be overcome by synchronizing the oscillator by injection-locking with an low phase-noise external source. We present here an experimental study of injection-locking in an RC two-integrator oscillator. First and second harmonic injection...
In this paper we present a balun LNA with gain adjustable continuously by a voltage. The LNA is based on the combination of a common-gate and a common-source stage to cancel the noise and distortion of the common-gate stage. To obtain higher gain with the same DC voltage drop we replace resistors by PMOS transistors. This also allows continuous gain control and we show that by proper design, the effect...
This paper presents a CMOS pixel motion detector based on an current-mode APS (Active Pixel Sensor) topology using standard 0.35μm CMOS process. We propose a design with transmission gate to control two copier cells to compare different integration time. The pixel output is a differential current signal proportional to the difference between the two current copier cells level. The whole circuit has...
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