A 25-kft, 768-kb/s CMOS analog front end for multiple-bit-rate DSL transceiver

System optimization of the Analog Front End (AFE) and hybrid line interface is a key contributor in achieving high data rate and long reach for Asymmetric Digital Subscriber Line (ADSL) modems. Following a brief review of the ADSL system, the basic building blocks in an AFE, analog line interface, and hybrid matching issues are introduced.Integration trends of a single-channel AFE and circuit design challenges for multi-channel AFE are then presented. Line driver technologies and line receiver design issues are discussed with emphasis on the tradeoff between noise and linearity. Finally, design challenges for a highly integrated ADSL modem chipset with minimal external components are addressed.

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A 25-kft, 768-kb/s CMOS analog front end for multiple-bit-rate DSL transceiver

Cited by 6 publications

References 10 publications

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