A 2.7 Gcps and 7-Multiplexing CDMA Serial Communication Chip Using Two-Step Synchronization Technique

Mitsuru SHIOZAKI  Toru MUKAI  Masahiro ONO  Mamoru SASAKI  Atsushi IWATA  

IEICE TRANSACTIONS on Electronics   Vol.E88-C   No.6   pp.1233-1240
Publication Date: 2005/06/01
Online ISSN: 
DOI: 10.1093/ietele/e88-c.6.1233
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Section on Analog Circuit and Device Technologies)
Category: Optical, PLL
CDMA,  robot,  multiplex,  synchronization technique,  

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Intelligent robot control systems based on multiprocessors, sensors, and actuators require a flexible network for communicating various types of real-time data (e.g. sensing data, interrupt signals). Furthermore, serial data transfer implemented using a few wiring lines is also required. Therefore, a CDMA serial communication interface with a new two-step synchronization technique is proposed to counter these problems. The transmitter and receiver fabricated by 0.25 µm digital CMOS technology achieve 2.7 Gcps (gigachips per second) and can multiplex 7 communication channels.