发明授权
US07671654B2 Device having clock generating capabilities and a method for generating a clock signal 有权
具有时钟产生能力的装置和用于产生时钟信号的方法

Device having clock generating capabilities and a method for generating a clock signal
摘要:
A method for generating a clock signal and a device having clock generating capabilities, the device includes: (i) a first divider, adapted to receive an input clock signal and divide the input clock signal to provide a first clock signal; (ii) a second divider, adapted to receive an input clock signal and divide the input clock signal to provide a second clock signal; wherein the first clock signal is phase shifted in relation to the second clock signal by half an input clock cycle; wherein a delay period of the first divider substantially equals a delay period of the second divider over a large range of delay affecting parameter values; (iii) a reconstruction circuit, connected to the first and second divider circuits, adapted to receive the first and second clock signals and apply a logical operation on the first and second clock signals to provide a reconstructed clock signal; and (iv) a selection circuit, connected to the first divider, second divider and reconstruction circuit, adapted to output an output clock signal in response to a selection signal that indicates whether to output the first clock signal, the second clock signal or the reconstructed clock signal.
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