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The design of a true single-phase-clock (TSPC) divider with a division ratio of 8 in 0.13μm BiCMOS technology is presented. Through the careful layout design, the divider is able to operate up to 7.5GHz with the dc voltage supply of 1.8V. The core circuit size is only 80×20μm2.
Recent years have seen an increasing number of application specific integrated circuits (ASICs) designated for various biomedical applications. In this paper we presented a CMOS reconfigurable analogue ASIC working on the discrete-time mode for low power biomedical signal filtering. The ASIC we have developed incorporates a switched-capacitor based analogue module, a current source, a voltage source,...
A reversible successive approximation register (RSAR) controlled all-digital delay-locked loop (ADDLL) is proposed to achieve fast-lock and wide range operation. The modified binary search algorithm of RSAR scheme is presented. With improved RSAR control-circuits, it could achieve adaptive bandwidth in wide range operation and eliminate the dead lock problem of conventional SAR DLL. The maximal lock-in...
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