Methods of Generating a Pixel Clock Signal from a Transmission Clock Signal and Related Data Transmission Methods for Multimedia Sources

摘要

Methods of generating a pixel clock signal for a multimedia source are provided in which a transmission clock signal having a first frequency is generated from a reference clock signal that has a second frequency. The generated transmission clock signal is multiplied by a multiple to generate the pixel clock signal. The pixel clock signal has a third frequency that is the product of the second frequency and the multiple.

主权项

1. A clock generator comprising:
a transmission clock generator configured to receive an input clock, to generate an intermediate clock, and to generate a transmission clock by dividing a frequency of the intermediate clock; and a pixel clock generator configured to receive the transmission clock, and to generate a plurality of sub pixel clocks by dividing a frequency of the transmission clock, wherein the pixel clock generator is configured to output one of the transmission clock and the plurality of sub pixel clocks as a pixel clock in response to a control signal; and the intermediate clock is used to convert parallel data into serial data.