DocumentCode
3189462
Title
An IF CMOS signal component separator chip for LINC transmitters
Author
Shi, Bo ; Sundstrom, Lars
Author_Institution
Dept. of Appl. Electron., Lund Univ., Sweden
fYear
2001
fDate
2001
Firstpage
49
Lastpage
52
Abstract
The LINC transmitter provides linear amplification using highly nonlinear but power efficient amplifiers. The signal component separator (SCS) is a crucial function of LINC. This paper presents an IF SCS chip implemented in a 0.35 μm CMOS process using a design based on voltage-translinear circuits. The experimental LINC transmitter, built with the chip and nonlinear amplifiers, had output spurious levels some -55 dBc and -48 dBc for a NADC signal and an IS-95 signal, respectively. This implies a high degree of linearity
Keywords
CMOS analogue integrated circuits; analogue processing circuits; radio transmitters; 0.35 micron; IF signal component separator chip; LINC transmitters; linear amplification; nonlinear amplifiers; submicron CMOS process; voltage-translinear circuits; Baseband; Circuit synthesis; Digital signal processing; High power amplifiers; Linearity; Particle separators; Signal generators; Signal processing; Transmitters; Voltage;
fLanguage
English
Publisher
ieee
Conference_Titel
Custom Integrated Circuits, 2001, IEEE Conference on.
Conference_Location
San Diego, CA
Print_ISBN
0-7803-6591-7
Type
conf
DOI
10.1109/CICC.2001.929721
Filename
929721
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