Hammad M. Cheema, Reza Mahmoudi, Arthur H.M. van Roermund's 60-GHz CMOS Phase-Locked Loops PDF

By Hammad M. Cheema, Reza Mahmoudi, Arthur H.M. van Roermund

ISBN-10: 904819279X

ISBN-13: 9789048192793

The promising excessive info cost instant purposes at millimeter wave frequencies generally and 60 GHz specifically have won a lot cognizance lately. even though, demanding situations relating to circuit, format and measurements in the course of mm-wave CMOS IC layout must be conquer ahead of they could develop into practicable for mass market.

60-GHz CMOS Phase-Locked Loops concentrating on phase-locked loops for 60 GHz instant transceivers elaborates those demanding situations and proposes options for them. The procedure point layout to circuit point implementation of the total PLL, in addition to separate implementations of person parts comparable to voltage managed oscillators, injection locked frequency dividers and their mixtures, are incorporated. moreover, to fulfill a few transceiver topologies concurrently, flexibility is brought within the PLL structure by utilizing new dual-mode ILFDs and switchable VCOs, whereas reusing the low frequency parts on the related time.

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Extra resources for 60-GHz CMOS Phase-Locked Loops

Example text

The VCO and prescaler, operating at the highest frequencies, require a high numerical sampling rate in the simulations whereas the low frequency components like PFD have large time constants. Consequently, the simulation of such systems is not trivial as few micro-seconds transient simulation coupled with a small time step means millions of time points are required. Therefore, prior to full-blown circuit level simulations, system level simulations based on behavior models are often adopted. These simulations provide a first insight into the overall system operation and the interaction of different components with each other.

The VCO output which needs to be measured by using a bond-pad is unavoidably long, so transmission lines whose impedance can be well controlled is employed for such connections. 1 Layout Problems and Solutions 41 There are a number of prescaler circuits possible for mm-wave synthesizers, one of which is based on injection locking (discussed in Chapter 4). Such a prescaler requires at least one inductor for a non-quadrature output and two for quadrature outputs. The former case is depicted in Fig.

The VCO output which needs to be measured by using a bond-pad is unavoidably long, so transmission lines whose impedance can be well controlled is employed for such connections. 1 Layout Problems and Solutions 41 There are a number of prescaler circuits possible for mm-wave synthesizers, one of which is based on injection locking (discussed in Chapter 4). Such a prescaler requires at least one inductor for a non-quadrature output and two for quadrature outputs. The former case is depicted in Fig.

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60-GHz CMOS Phase-Locked Loops by Hammad M. Cheema, Reza Mahmoudi, Arthur H.M. van Roermund


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