Мathematical modeling of voltage-controlled oscillators with the colpitts and clapp topology
نویسندگان
چکیده
منابع مشابه
Voltage Controlled Oscillators
Introduction A key circuit used in modern communication systems is the voltage controlled oscillator (VCO). The VCO's output is an AC waveform whose frequency is dependent upon the input voltage. In today's wireless communication systems, a greater maximum frequency range is required by VCOs. With respect to the digital phones that use these circuits, low power consumption, small size and low f...
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The voltage controlled oscillator (VCO) is a critical sub-block in communications transceivers. The role of the VCO in a transceiver and the VCO requirements are first reviewed. The necessity of GHz VCOs and the driving factors towards the monolithic integration of the VCO are examined. VCO design techniques are outlined and design trade-offs are explored. The performance of VCOs in different i...
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abstract while task-based instruction is considered as the most effective way to learn a language in the related literature, it is oversimplified on various grounds. different variables may affect how students are engaged with not only the language but also with the task itself. the present study was conducted to investigate language and task related engagement on the basis of the task typolog...
15 صفحه اولVoltage-Controlled Oscillators and Frequency Dividers
Voltage-controlled oscillators (VCOs) and frequency dividers play critical roles in all synchronous circuits. They comprise the core components in phase-locked systems, sometimes necessitating co-design and having great influence on the overall performance. Even though we have witnessed a proliferation of VCO and divider topologies in the past two decades of Si RF, high performance oscillators ...
متن کاملSilicon-Based Distributed Voltage-Controlled Oscillators
Distributed voltage-controlled oscillators (DVCOs) are presented as a new approach to the design of silicon VCOs at microwave frequencies. In this paper, the operation of distributed oscillators is analyzed and the general oscillation condition is derived, resulting in analytical expressions for the frequency and amplitude. Two tuning techniques for DVCOs are demonstrated, namely, the inherent-...
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ژورنال
عنوان ژورنال: Electronics and Control Systems
سال: 2009
ISSN: 1990-5548
DOI: 10.18372/1990-5548.19.667