摘要
本文简要介绍了与FDU的24位A/D转换器有关的增量调制器、数字抽取滤波器的工作原理、FDU电路的组成及其各部分电路的主要功能。
The paper briefly introduced the working principle of the incremental modulator and digital decimation filter related to the 24-bits Σ-ΔADC translator,composition of FDU circuit and main function of each circuit.