DocumentCode
378847
Title
A 2 GHz direct-conversion WCDMA modulator in 0.25 /spl mu/m CMOS
Author
Brenna, G. ; Tschopp, D. ; Pfaff, D. ; Qiuting Huang
Author_Institution
Integrated Syst. Lab., Swiss Fed. Inst. of Technol., Zurich, Switzerland
Volume
1
fYear
2002
fDate
7-7 Feb. 2002
Firstpage
244
Abstract
A modulator IC has been designed which delivers -8 dBm maximum output power. Gain is programmable over a 78 dB range in 1dB steps with 0.3 dB accuracy. Consuming 41 mA from a 2.5 V supply, the modulator achieves a 15 dBm OIP3, 50 dBm OIP2, 36 dB rejection of unwanted sideband, 47 dB carrier suppression and -148 dBc/Hz out-of-band-noise.
Keywords
CMOS integrated circuits; cellular radio; code division multiple access; gain control; integrated circuit measurement; modulators; noise; 0.25 micron; 2 GHz; 2.5 V; 41 mA; CMOS direct-conversion WCDMA modulator; OIP2; OIP3; carrier suppression; cellular radio networks; gain accuracy; maximum output power; modulator IC; out-of-band-noise; programmable gain range; unwanted sideband rejection; BiCMOS integrated circuits; CMOS technology; Filters; Gain control; Impedance; Integrated circuit noise; Linearity; Multiaccess communication; Radio frequency; Radio transmitters;
fLanguage
English
Publisher
ieee
Conference_Titel
Solid-State Circuits Conference, 2002. Digest of Technical Papers. ISSCC. 2002 IEEE International
Conference_Location
San Francisco, CA, USA
Print_ISBN
0-7803-7335-9
Type
conf
DOI
10.1109/ISSCC.2002.993027
Filename
993027
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