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A W-CDMA Baseband Modem LSI with Multi-Engine Architecture

May SUZUKI, Manabu KAWABE, Takashi YANO, Junko KIYOTA, Hirotake ISHII, Tsuyoshi TAMAKI, Nobukazu DOI

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Summary :

In this paper, a new multi-engine architecture for the baseband modem LSI of W-CDMA systems is proposed. The developed test chip with this architecture is also presented. In the multi-engine architecture, processors and wired logic are combined to obtain both flexibility and low power dissipation. Multiple processors are used in the LSI to lower its operating frequency by distributed processing. A customized processor is used to lower the overhead of multiple processors in terms of LSI scale. The test chip was fabricated with a 0.25-µm process. Its measured power dissipation for simultaneous 384 kbit/s downlink reception and 64 kbit/s uplink transmission was 160 mW.

Publication
IEICE TRANSACTIONS on Electronics Vol.E85-C No.2 pp.352-358
Publication Date
2002/02/01
Publicized
Online ISSN
DOI
Type of Manuscript
Special Section PAPER (Special Issue on High-Performance and Low-Power Microprocessors)
Category
Product Designs

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