Details

Autor(en) / Beteiligte

• Brandolini, Massimo
• Rossi, Paolo
• Sanzogni, Davide
• Svelto, Francesco

Titel

A 0.18 mum CMOS direct down-converter for highly integrated 3G receivers

Ist Teil von

• Analog integrated circuits and signal processing, 2007-10, Vol.53 (1), p.35-42

Erscheinungsjahr

2007

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• This paper presents the design of a high dynamic range direct down-converter for 3G cell-phone applications. The mechanisms responsible for second-order intermodulation distortion are discussed in details, leading to the following design strategy: the transconductor is degenerated by means of an RC filter, an LC network resonating at RF frequency loads the switching pair and carefully matched resistors are used in the output load. Prototypes realized in 0.18 mum CMOS show: +78 dBm IIP2 minimum among 40 samples, +10 dBm IIP3, 4 nV/√Hz input-referred noise density while burning only 4 mA from 1.8 V.