Abstract:The design and implementation of spectral detection system based on a high sensitivity CCD are introduced. The scheme makes full use of the powerful advantage formed by combining CPLD with USB2.0 interface chip, so as to avoid using single chip device alone, effectively reducing the system power consumption and PCB board size. Based on the analysis and settlement of key technical problems, CCD detectors for micro spectrometers with the advantages of high sensitivity, low power consumption, micromation and integration are realized.