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Apparatus and method for un-delayed decision feedback with sample and hold at selected timing
Apparatus and method for un-delayed decision feedback with sample and hold at selected timing
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机译:用于在选定的定时进行采样和保持的无延迟决策反馈的设备和方法
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摘要
A multi-phase partial response receiver supports various incoming data rates by sampling PrDFE output values at a selected one of at least two clock phases. The receiver includes a calibration circuit that performs a timing analysis of critical data paths in the circuit, and this analysis is then used to select the particular clock phase used to latch the output values. These techniques permit the multiplexer outputs from for each phase of the partial response receiver to directly drive selection of a multiplexer for the ensuing phase, i.e., by avoiding regions of instability or uncertainty in the respective multiplexer outputs.
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