A CMOS ADSL codec for central office applications

Patrick P Siniscalchi,Jeanne K Pitz,Richard K Hester,S. M. DeSoto,Minsheng Wang, S. Sridharan, R. L. Halbach, Donald Richardson,William Bright, M. M. Sarraj,James R Hellums,Christopher L Betty,Glenn H Westphal

IEEE Journal of Solid-State Circuits（2001）

引用 16|浏览12

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摘要

A CMOS central office codec that supports Full Rate and G.Lite asymmetric digital subscriber line (ADSL) transmission is described. The transmit channel consists of application-dependent digital filters, a 14-bit, 8.832-MSample/s current steering DAC, a 1.104-MHz analog filter, and a programmable attenuator. Due to extensive on-chip digital signal processing, the codec complies with the ADSL trans...

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关键词

Codecs,Central office,Digital filters,Low pass filters,DSL,Attenuators,Digital signal processing,Code standards,Filtering,Gain

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