A broadband RF 65nm CMOS front-end for cable TV reception

  • Authors:

  • Marco Pifferi;Fabio Ducati;Hans Brekelmans;Lorenzo Tripodi;Kostas Doris;Mattia Borgarino

  • Affiliations:

  • Department of Information Engineering, University of Modena and Reggio, Via Vignolese 905, I-41100 Modena, Italy;Department of Information Engineering, University of Modena and Reggio, Via Vignolese 905, I-41100 Modena, Italy;Research, NXP Semiconductors, High Tech Campus 37 (WY2.022), 5656AE Eindhoven, The Netherlands;Philips Research Europe, High Tech Campus 37 (WY), Room 1.008, 5656 AE Eindhoven, The Netherlands;Research, NXP Semiconductors, High Tech Campus 37 (WY2.022), 5656AE Eindhoven, The Netherlands;Department of Information Engineering, University of Modena and Reggio, Via Vignolese 905, I-41100 Modena, Italy

  • Venue:
  • Microelectronics Journal
  • Year:
  • 2008

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Abstract

A novel broadband RF front-end in 65nm CMOS technology is presented. The front-end serves to precondition the incoming RF spectrum for further processing in a cable TV receiver architecture where RF channel selection and down conversion are done in digital domain. The analog front-end consists of a broadband highly linear low-noise amplifier followed by a variable gain RF amplifier. An original broadband circuit topology for the amplifiers is adopted. The fabricated front-end exhibits a bandwidth of 50-1050MHz, a variable gain, which spans from 12 to 37dB with a 0.2dB step, an OIP3 of 28.4dBm (77.5dBmV), an OIP2 of 65dBm (114dBmV), and a noise figure of 5.8dB, dissipating 125mW at 1.2V supply, and a core silicon area of 0.4mm^2.