CLOCK AND DATA RECOVERY CIRCUIT AND A DISPLAY APPARATUS HAVING THE SAME

    公开(公告)号:US20210067310A1

    公开(公告)日:2021-03-04

    申请号:US16878728

    申请日:2020-05-20

    Abstract: A display device including: a timing controller outputting a reference clock signal and a data packet, wherein the data, packet includes a clock signal embedded in a data signal; a clock and data recovery (CDR) circuit receiving the reference clock signal and the data packet; and a display panel displaying an image based on the data packet, wherein, when the CDR circuit receives the reference clock signal, a frequency band of the reference clock signal is detected using a first internal clock signal, a parameter associated with jitter characteristics of the clock and data recovery circuit is adjusted according to the detected frequency band, and a second internal clock signal is output by adjusting a frequency of the first internal clock signal and when the CDR circuit receives the data packet, the data signal and a clock signal synchronized with the data signal are recovered from the data packet.

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