A Kind of Configurable Differintial Driver Circuit with a Compatililty of Multi-Stand Applying to FPGA

This paper presents a configurable differential driver design which is suitable for FPGA devices and is configurable, compatible with multi standards. Based on the flexible structure of configurable circuit and the precisely controlled driving current circuit, the proposed differential driver is compatible with five widely used I/O standards, including LVDS25, LVDS33, LVDS25-EXT, LVDS33-EXT and LDT25.This design has been successfully applied to multiple FPGA chips.