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A DSP-based digital IF AM/FM car-radio receiver

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13 Author(s)
Adduci, F. ; STMicroelectronics, Cornaredo, Italy ; Annovazzi, M. ; Boarin, G. ; Colaci, A.
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This paper describes the design and the implementation of a DSP-based digital IF (intermediate frequency) radio receiver in a low-power 0.18/spl mu/m 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 /spl Sigma//spl Delta/-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 15.21mm/sup 2/ and it is shipped in a compact 64-pin package, reducing application costs while ensuring state-of-the-art performance.

Published in:

Solid-State Circuits Conference, 2003. ESSCIRC '03. Proceedings of the 29th European

Date of Conference:

16-18 Sept. 2003