This paper describes the design and the implementation of a DSP-based digital IF (intermediate frequency) radio receiver in a low-power 0.18μm CMOS technology. Thanks to an advanced systems-on-chip mixed analog and digital solution, the proposed device performs the demodulation of both AM and FM stereo signals, digitized at the IF by means of a high dynamic range ΣΔ-bandpass analog to digital converter. The chosen architecture combines hardware and software functions, yielding true blind equalization of the FM channel; this results in an outstanding rejection of the adjacent channels and of any other interfering signal, even under severe multipath conditions. The described chip occupies as small as 15.21mm2 and it is shipped in a compact 64-pin package, reducing application costs while ensuring state-of-the-art performance. © 2003 IEEE.
Adduci, F., Annovazzi, M., Boarin, G., Colaci, A., Colonna, V., Gandolfi, G., et al. (2003). A DSP-based digital if AM/FM car-radio receiver. In Proceedings of the 29th European Solid-State Circuits Conference, 2003. ESSCIRC '03 (pp.201-204). 345 E 47TH ST, NEW YORK, NY 10017 USA : IEEE [10.1109/ESSCIRC.2003.1257107].
A DSP-based digital if AM/FM car-radio receiver
BASCHIROTTO, ANDREA
2003
Abstract
This paper describes the design and the implementation of a DSP-based digital IF (intermediate frequency) radio receiver in a low-power 0.18μm CMOS technology. Thanks to an advanced systems-on-chip mixed analog and digital solution, the proposed device performs the demodulation of both AM and FM stereo signals, digitized at the IF by means of a high dynamic range ΣΔ-bandpass analog to digital converter. The chosen architecture combines hardware and software functions, yielding true blind equalization of the FM channel; this results in an outstanding rejection of the adjacent channels and of any other interfering signal, even under severe multipath conditions. The described chip occupies as small as 15.21mm2 and it is shipped in a compact 64-pin package, reducing application costs while ensuring state-of-the-art performance. © 2003 IEEE.
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