Title :
Analog front end IC for 3G WCDMA
Author :
Tsung-Yuan Chang ; Xuewen Jiang ; Khalil, W. ; Naqvi, S.R. ; Nikjou, B. ; Tseng, J.
Author_Institution :
Cellular Commun. Div., Intel Corp., Chandler, AZ, USA
Abstract :
Presents the world´s first integrated analog front-end (AFE) and audio codec IC supporting the WCDMA standard. This chip was fabricated on Intel´s 0.18 /spl mu/m flash+logic+analog (FLA) process technology using a 0.35 /spl mu/m feature size analog transistor. The AFE transmit path contains a 10-bit segmented R2R D/A, self-calibrated active RC filter and programmable gain amplifier (PGA) with a self tuning offset correction circuit. The receive path includes a programmable gain active RC filter and an 8-bit A/D with built-in offset correction. The AFE operates at 2.7 V with a current consumption of 55 mA, and total active area of 15 mm/sup 2/.
Keywords :
RC circuits; active filters; cellular radio; circuit tuning; code division multiple access; codecs; 0.18 micron; 0.35 micron; 10 bit; 2.7 V; 3G WCDMA; 55 mA; 8 bit; analog front end IC; audio codec IC; built-in offset correction; current consumption; feature size; flash+logic+analog process technology; programmable gain amplifier; receive path; self tuning offset correction circuit; self-calibrated active RC filter; total active area; Active filters; Analog integrated circuits; Band pass filters; Bandwidth; Baseband; Electronics packaging; Frequency; GSM; Integrated circuit technology; Multiaccess communication;
Conference_Titel :
VLSI Circuits Digest of Technical Papers, 2002. Symposium on
Conference_Location :
Honolulu, HI, USA
Print_ISBN :
0-7803-7310-3
DOI :
10.1109/VLSIC.2002.1015034
