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A complete six-order CMOS differential ring voltage-controlled oscillator (VCO) is designed with a 0.35/m CMOS process in this paper. The circuit has been successfully applied in a CPPLL of a high-speed high-resolution DAC, and has been successfully taped out and passed the test. The relative factors that influence the VCO phase noise are analyzed comprehensively to instruct the circuit design. The...
New tendencies envisage multiprocessor systems-onchips (MPSoCs) as a promising solution for the high performance Embedding System. And the key challenge is how to improve the communication efficiency. Network on Chip (NoC) has been considered as a new paradigm in the next generation communication architecture for its extensibility and power efficiency. The router is the fundamental unit of NoC. In...
With the development of IC technology and the increasing processing power requirement, more and more processing cores are being integrated into one single chip. One of the key problems is the communication efficiency between the processing cores, and network on chip (NoC) has been proposed as prospect architecture. In this paper, scalability issue of 2-D mesh based NoC is analyzed. First, a mesh based...
Multi-core technology has become a trend in high performance System on Chip (SoC) design. And the key challenge is how to improve the communication efficiency. Network on Chip (NoC) has been considered as a new paradigm in the next generation communication architecture for its extensibility and power efficiency. This paper proposed crossbar NoC architecture and its FPGA prototype design, and the major...
MPEG-2 AAC is the widely used audio standard and getting more popular for commercial use. In the AAC, the filterbank tool, which is composed of IMDCT, windowing and overlap-add, has the highest computation complexity. In this three steps, IMDCT is the important component. Hence, most published filterbank algorithms focus mainly on the implementation of IMDCT but overlook the relevancy between the...
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