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A fully-integrated zero-IF DECT transceiver

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3 Author(s)
F. Op 't Eynde ; Alcatel Microelectron., Zaventem, Belgium ; J. Craninckx ; P. Goetschalckx

This single-chip RF-transceiver for DECT provides a complete transmission and reception radio interface between the antenna and the baseband digital bitstream. Integrated synthesizer, zero-intermediate frequency (zero-IF) receiver topology and digital modulation and demodulation, minimizes the number of external components: only an antenna filter and switch, a power amplifier, and decoupling. The local oscillator (LO) synthesizer uses a double-frequency voltage-controlled oscillator (VCO) with integrated spiral coils and digital self-calibration for process variations. The integrated phase-locked loop (PLL) synthesizer has a fast settling and stays closed-loop for the direct-upconversion transmitter. This allows non-blind-slot operation in high-end base stations and multislot operation for high-speed asymmetrical data links.

Published in:

Solid-State Circuits Conference, 2000. Digest of Technical Papers. ISSCC. 2000 IEEE International

Date of Conference:

9-9 Feb. 2000