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October 2009 [Devices & ICs] Digital RF Processor Serves Plethora Of Cellular Systems Digital RF processors (DRFs) offer the potential of meeting the requirements for a wide range of cellular telephone wireless standards without significant changes in design and hardware. A DRP design is detailed here, with digital receive and transmit sections, although one of the key components within the DRF is the frequency synthesizer, which employs a novel approach to phaselock- loop (PLL) implementation. Newer cellular telephones are... |
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