A fully integrated direct-conversion digital satellite tuner in 0.18 <i>μ</i>m CMOS

Chen Si; Yang Zengwang; Gu Mingliang

doi:10.1088/1674-4926/32/4/045004

J. Semicond. > 2011, Volume 32 > Issue 4 > 045004

SEMICONDUCTOR INTEGRATED CIRCUITS

A fully integrated direct-conversion digital satellite tuner in 0.18 μm CMOS

Chen Si, Yang Zengwang and Gu Mingliang

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DOI: 10.1088/1674-4926/32/4/045004

Abstract: A fully integrated direct-conversion digital satellite tuner for DVB-S/S2 and ABS-S applications is presented. A broadband noise-canceling Balun-LNA and passive quadrature mixers provided a high-linearity low noise RF front-end, while the synthesizer integrated the loop filter to reduce the solution cost and system debug time. Fabricated in 0.18 μm CMOS, the chip achieves a less than 7.6 dB noise figure over a 900–2150 MHz L-band, while the measured sensitivity for 4.42 MS/s QPSK-3/4 mode is –91 dBm at the PCB connector. The fully integrated integer-N synthesizer operating from 2150 to 4350 MHz achieves less than 1 ℃ integrated phase error. The chip consumes about 145 mA at a 3.3 V supply with internal integrated LDOs.

Key words: direct-conversion

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Chen Si, Yang Zengwang, Gu Mingliang. A fully integrated direct-conversion digital satellite tuner in 0.18 μm CMOS[J]. Journal of Semiconductors, 2011, 32(4): 045004. doi: 10.1088/1674-4926/32/4/045004

Chen S, Yang Z W, Gu M L. A fully integrated direct-conversion digital satellite tuner in 0.18 μm CMOS[J]. J. Semicond., 2011, 32(4): 045004. doi: 10.1088/1674-4926/32/4/045004.

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Received: 18 August 2015 Revised: 30 November 2010 Online: Published: 01 April 2011

A fully integrated direct-conversion digital satellite tuner for DVB-S/S2 and ABS-S applications is presented. A broadband noise-canceling Balun-LNA and passive quadrature mixers provided a high-linearity low noise RF front-end, while the synthesizer integrated the loop filter to reduce the solution cost and system debug time. Fabricated in 0.18 μm CMOS, the chip achieves a less than 7.6 dB noise figure over a 900–2150 MHz L-band, while the measured sensitivity for 4.42 MS/s QPSK-3/4 mode is –91 dBm at the PCB connector. The fully integrated integer-N synthesizer operating from 2150 to 4350 MHz achieves less than 1 ℃ integrated phase error. The chip consumes about 145 mA at a 3.3 V supply with internal integrated LDOs.

A fully integrated direct-conversion digital satellite tuner in 0.18 μm CMOS

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A fully integrated direct-conversion digital satellite tuner in 0.18 μm CMOS

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A fully integrated direct-conversion digital satellite tuner in 0.18 μm CMOS

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