公开(公告)号：US10598852B1

公开(公告)日：2020-03-24

申请号：US16425009

申请日：2019-05-29

Applicant: Xilinx, Inc.

Inventor： Hai bing Zhao ,  Kee Hian Tan ,  Ping-Chuan Chiang ,  Yipeng Wang ,  Yohan Frans

IPC: G09G3/36 ,  G02B6/12 ,  H03M1/50 ,  G02B6/42

Abstract: A data driver includes pre-driver circuitry coupled to a digital-to-analog converter (DAC) via a plurality of bit lines. The pre-driver circuitry is configured to receive a plurality of first voltages corresponding to respective bits of a digital codeword. Each of the first voltages may have one of a first voltage value or a ground potential based on a value of the corresponding bit. The pre-driver circuitry is further configured to drive a plurality of second voltages onto the plurality of bit lines, respectively, by switchably coupling each of the bit lines to ground or a voltage rail based at least in part on the voltage values of the plurality of first voltages. The voltage rail provides a second voltage value that is greater than the first voltage value. The DAC converts the plurality of second voltages to an electrical signal which is an analog representation of the digital codeword.