DocumentCode
439386
Title
An analog baseband circuitry for a WCDMA direct conversion receiver
Author
Jussila, Jarkko ; Pärssinen, Aarno ; Halonen, Kari
Author_Institution
Helsinki University of Technology, Finland
fYear
1999
fDate
21-23 Sept. 1999
Firstpage
166
Lastpage
169
Abstract
An analog baseband circuitry for a WCDMA direct conversion receiver is described. The circuitry includes a channel selection filtering and amplification with an adjustable gain in a merged manner. The active RC technique is applied. The filter bandwidth can be set to 2MHz, 4MHz or 8MHz and the gain can be controlled from -9dB to 69dB in 3dB steps. The filter frequency response is tuned with binary weighted switchable capacitor matrices. At the 2MHz bandwidth the chip consumes 39mA from a 2.7V supply. The chip has been fabricated with a 0.35µm BiCMOS process.
Keywords
Bandwidth; Baseband; Circuit noise; Filters; Frequency response; Hip; Linearity; Multiaccess communication; Resistors; Wideband;
fLanguage
English
Publisher
ieee
Conference_Titel
Solid-State Circuits Conference, 1999. ESSCIRC '99. Proceedings of the 25th European
Conference_Location
Duisburg, Germany
Type
conf
Filename
1471122
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