Research and Optimization of HDMI Transmitter with Pre-emphasis Strategy
Guoguan Wen, Qingming Yi, Min Shi · Proceedings of the 2nd International Conference on Computer Science and Electronics Engineering (ICCSEE 2013) · 2013
Pre-emphasis of LVDS driver for HDMI transmitter (HDMI-TX) is designed and implemented in this paper.HDMI supports high bandwidth and long distance transmission.However, HDMI cable high cost and instability limit its application.Therefore pre-emphasis of LVDS driver is proposed.Compared with traditional LVDS driver, preemphasis of LVDS driver can compensate for the high frequency loss.Through research on the encoding method, and clock frequency reduction technology, a FPGA prototype based on HDMI-TX with pre-emphasis is implemented.The simulation shows that the FPGA prototype not only effectively saves energy, but also improves reliability.