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A Low-Power Floating-Gate-MOS-Based CDMA Matched Filter Featuring Coupling Capacitor Disconnection

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2 Author(s)
Yamasaki, T. ; Dept. of Inf. & Commun. Eng., Univ. of Tokyo ; Shibata, T.

A low-power and compact CDMA matched filter has been developed based on the floating-gate MOS technology. The low-power operation has been achieved by employing single-step matching and disconnection of coupling-capacitors not involved in each matching operation. The capacitance disconnection has also enhanced the output gain to almost double. The 255-chip matched filter fabricated in a 0.35-mum CMOS technology demonstrated 5.3-mW operation at 2.5-V power supply and the chip rate of 8 Mchip/s, while occupying a chip area of 1.0 mm2

Published in:

Solid-State Circuits, IEEE Journal of  (Volume:42 ,  Issue: 2 )