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Summary of mmWave LO distribution requirements 1. Control shape of the clock (duty cycle) 2. Tight timing between different clock leaf nodes (skew) 3. Spectrally pure clock (low jitter) 4. Generate multiple phases of clock (LO) 5. Support large variation in routing length (tens of microns to several millimeters)
To benefit from Moore's law and minimize form-factor and active power consumption, digital-rich SoCs should be integrated in the most advanced technology node. If the transceiver is integrated in a different technology node, multi-chip solutions are required, increasing system cost and form-factor. Traditional radio architectures require extensive use of high-quality passives, which might use large...
An image reject RF filter for wideband receivers is described. This image reject RF filter relies on a complex bandpass filter that can be tuned accurately over a wide frequency. Operation of this filter is demonstrated in a 0.13um CMOS technology and shown to operate from DC to 2GHz. The filter is shown to provide a minimum image rejection ratio of 62 dBc, while providing an OIP3 of at least +30dBm...
In this paper, we discuss some of the most pressing challenges in low-power analog circuit design for sub-28nm technologies. A design methodology suitable for deep submicron low-power analog design is first described. Using the proposed figure of merit, several technologies as they scale down towards 28nm are compared. This is followed by a discussion of some of the issues that are unique to 28nm...
CMOS imagers are complex systems whose design requires quite different pieces of expertise, namely: pixels, analog signal processing, pixel readout and analog-to-digital conversion, digital signal processing, output drivers, etc. Confronting the design of new imagers require hence the concourse of multidisciplinary teams. However, because correct operation calls for the close interconnection among...
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