Title :
Single-chip IF transceiver IC with wide dynamic range variable gain amplifiers for wideband CDMA applications
Author :
Maruyama, T. ; Kaneki, K. ; Takahashi, K. ; Sato, H. ; Iga, T. ; Kato, N.
Author_Institution :
Syst. LSI Dev. Center, Mitsubishi Electr. Corp., Hyogo, Japan
Abstract :
A single-chip IF transceiver IC for wideband code division multiple access systems is described. The chip consists of two variable gain amplifiers, a quadrature modulator, a demodulator, and dual phase locked loops. A new VGA for the receiver is proposed to achieve wide dynamic range. The chip draws 48 mA from 3.0 V. Dynamic ranges of the VGAs for transceiver and receiver are 90 dB and 110 dB respectively.
Keywords :
code division multiple access; cordless telephone systems; demodulators; land mobile radio; modulators; phase locked loops; transceivers; 3.0 V; 48 mA; VGAs; demodulator; dual phase locked loops; dynamic range; dynamic range variable gain amplifiers; quadrature modulator; single-chip IF transceiver IC; variable gain amplifiers; wideband CDMA applications; Application specific integrated circuits; Band pass filters; Broadband amplifiers; Demodulation; Dynamic range; Gain; Linearity; Multiaccess communication; Transceivers; Transmitters;
Conference_Titel :
VLSI Circuits, 2001. Digest of Technical Papers. 2001 Symposium on
Conference_Location :
Kyoto, Japan
Print_ISBN :
4-89114-014-3
DOI :
10.1109/VLSIC.2001.934178
