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
)
Date of Publication: Feb. 2007