Title :
A Fully-Integrated 0.13/spl mu/m CMOS Low-IF DBS Satellite Tuner
Author :
Maxim, A. ; Poorfard, R. ; Johnson, R. ; Crawley, P. ; Kao, J. ; Dong, Z. ; Chennam, M. ; Nutt, T. ; Trager, D.
Author_Institution :
Silicon Labs. Inc., Austin, TX
Abstract :
A first low-IF fully-integrated tuner for DBS satellite TV applications was realized in 0.13 mum CMOS. A wide bandwidth, ring oscillator integer-N frequency synthesizer having a large frequency step was used to down-convert a cluster of channels to a coarsely defined low-IF frequency, while the second down-conversion to base band was performed in the digital domain. Eliminating the oscillator inductors has reduced the parasitic magnetic coupling from the digital circuitry, allowing single-chip tuner-demodulator integration
Keywords :
CMOS integrated circuits; demodulators; digital phase locked loops; direct broadcasting by satellite; frequency synthesizers; television receivers; voltage-controlled oscillators; 0.13 micron; CMOS satellite tuner; DBS satellite TV applications; DBS satellite tuner; PLL; digital circuitry; fully-integrated satellite tuner; integer-N frequency synthesizer; low-IF satellite tuner; low-intermediate frequency receiver; oscillator inductors; parasitic magnetic coupling; ring VCO; ring oscillator; ring voltage controlled oscillators; single-chip tuner-demodulator integration; Bandwidth; Coupling circuits; Frequency synthesizers; Inductors; Magnetic domains; Ring oscillators; Satellite broadcasting; TV; Tuned circuits; Tuners;
Conference_Titel :
VLSI Circuits, 2006. Digest of Technical Papers. 2006 Symposium on
Conference_Location :
Honolulu, HI
Print_ISBN :
1-4244-0006-6
DOI :
10.1109/VLSIC.2006.1705300
