作者: S.J. Poole , G. Surace , B. Singh , N.P. Dyer
关键词: Electronic engineering 、 Electronic circuit 、 Line card 、 Digital filter 、 Audio signal 、 Engineering 、 Local loop 、 Audio signal processing 、 CMOS 、 Interface (computing)
摘要: The design of a CMOS subscriber-line audio processing circuit including self-adaptive trans-hybrid balance has been described. Its transmission performance shown to exceed CCITT specifications with up 12 dB transmit gain and receive loss. This achieved using single 5-V power supply while maintaining simple analog interfaces subscriber line interface circuit. will enable the programmable flexible cards, superior over those realized more conventional components. >