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A CMOS quadrature down-conversion mixer with analog I/Q correction obtaining 55 dB of image rejection for TV on Mobile applications

Marc Notten, M. Bernard, Vincent Rambeau, Jan van Sinderen

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Abstract

An analog I/Q correction system has been developed to lower the power consumption of a quadrature mixer in a silicon TV-tuner intended for mobile applications. The image rejection of this mixer is limited to about 40 dB and the target is 57 dB. The passive CMOS quadrature mixer with I/Q correction is realized, achieving the matching properties of a double quadrature mixer and obtaining more than 55 dB of image rejection and a high dynamic range over a wide frequency range consuming 27mW at 2.7V

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What this paper is about

An analog I/Q correction system has been developed to lower the power consumption of a quadrature mixer in a silicon TV-tuner intended for mobile applications. The image rejection of this mixer is limited to about 40 dB and the target is 57 dB. The passive CMOS quadrature mixer with I/Q correction is realized, achieving the matching properties of a double quadrature mixer and obtaining more than 55 dB of image rejection and a high dynamic range over a wide frequency range consuming 27mW at 2.7V

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Available abstract

An analog I/Q correction system has been developed to lower the power consumption of a quadrature mixer in a silicon TV-tuner intended for mobile applications. The image rejection of this mixer is limited to about 40 dB and the target is 57 dB. The passive CMOS quadrature mixer with I/Q correction is realized, achieving the matching properties of a double quadrature mixer and obtaining more than 55 dB of image rejection and a high dynamic range over a wide frequency range consuming 27mW at 2.7V

Key concepts: Tuner, Image response, Quadrature (astronomy), CMOS, Frequency mixer, Power consumption, Dynamic range, Electronic mixer

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