PROGRESS: Completed Project PROJECT REF: NA PROJECT TITLE: DSL AFE Development PROJECT DESCRIPTION: The analog front-end (AFE) provides the critical interface between the phone lines and the digital signal processing unit in a DSL modem. ASTRI's DSL technology development exploits cross-talk cancellation across multiple lines to achieve significant improvements in the resulting data rate. The use of digital duplexing especially places stringent requirements on the AFE by demanding higher linearity and lower noise performances for the AFE codec design.The performance of the ADC plays a critical role in achieving the data rate predicted by ASTRI's system simulations. We improved the speed, linearity and noise performance of existing solutions while keeping the power consumption low enough for the eventual large scale deployments. The successful integration of ASTRI's high performance ADC fully exploits the available spectrum of the copper phone lines and the cross-talk cancellation capabilities using DSP techniques. FOCUS AREA(S): Integrated Circuit Design KEYWORDS: IC design;DSL COLLABORATION: Flexible and on a case-by-case basis STATUS PATENT: Patent Pending PATENT NO: NA ORGANIZATION: ASTRI CONTACT PERSON: Jonathan Leung EMAIL: klleung@astri.org TEL: (852) 3406 2980 FAX: (852) 3406 2801 WEBSITE: http://www.astri.org DATE: