Title：A transmitter with timing alignment
Country：China
Patent No.：201611104171.4
Legal Status：Authorized
Inventor：Ziqiang Wang, Naiwen Zhou, Fangxu Lv, Chun Zhang, Zhihua Wang, Fule Li
Assignee：Tsinghua University
Address：Tsinghua University,Haidian District Beijing 100086, China
Filing Date：2016-12-05
Issue Date：2020-10-27
Abstract：
The invention relates to a transmitter with timing sequence calibration for a high speed serial interface, belonging to the field of an analogue circuit design. The transmitter acquires output data and a clock signal of the stage from some intermediate stage combiner and feeds the signal to a phase discriminator; the phase discriminator compares the input data and the clock signal and outputs a corresponding control voltage; the control voltage is converted into control current through a voltage/current converter to control a phase interpolator in a clock chain; the phase interpolator adjusts a phase relationship between an input clock and an output clock according to the control current, and the output clock with adjusted phase is used for sampling data of the combiner. Therefore, a feedback network formed automatically adjusts the phase of a sampling clock, so that the timing sequence relationship of data and clock in the combiner is ensured.
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