Realization of High-speed Serial Data to Parallel Data in Digital Camera

Abstract

An Field Programmable Gate Array(FPGA)-based implementation scheme is proposed to address the problem of parallel conversion required for high-speed serial data output from Complementary Metal Oxide Semiconductor(CMOS) image sensors in digital camera development. The hardware circuit is designed to connect the Low-Voltage Differential Signaling(LVDS) exclusive interface of FPGA with the CMOS image sensor high-speed serial data LVDS output interface to ensure the reliability and stability of high-speed serial data transmission, and the FPGA program is designed to adopt a multi-level shift strategy to solve the contradiction between the high conversion frequency and FPGA resources in high-speed serial data to parallel data conversion. The solution has been verified in practice, not only realizing the problem of CMOS high-speed serial data output to parallel conversion, but also ensuring the real-time performance in conversion.