Title :
A 3.3 V 0.8 μm CMOS single chip IF IC for CDMA/FM cellular phone
Author :
Kim, Ook ; Oh, Chang-Jun ; Kwon, Jong-Kee ; Lee, Jong-Ryul ; Song, Q-Sang ; Song, Wonchul ; Kim, Kyung-Soo ; Park, Hyung-Moo
Author_Institution :
Semiconductor Div., Electron. & Telecommun. Res. Inst., Taejon, South Korea
Abstract :
A 3.3 v 150 mW IF IC is implemented using 0.8 μm CMOS process. This IC integrates both CDMA and FM IF signal processing units and interfaces between IF signals and baseband modem. Rx mixer down-converts 85.38 MHz IF signals into baseband signal, and Tx mixer based on a replica transconductor up-converts baseband signal into a 130.38 MHz IF signal. The chip size is 5.5×6.3 mm2.
Keywords :
CMOS integrated circuits; cellular radio; code division multiple access; frequency convertors; frequency modulation; mixed analogue-digital integrated circuits; mixers (circuits); telephone sets; transceivers; 0.8 micron; 130.38 MHz; 150 mW; 3.3 V; 85.38 MHz; CDMA IF signal processing unit; CMOS single chip IF IC; FM IF signal processing unit; cellular phone; replica transconductor; Baseband; BiCMOS integrated circuits; CMOS integrated circuits; CMOS process; Cellular phones; Energy consumption; Frequency modulation; Impedance; Linearity; Multiaccess communication;
Conference_Titel :
Circuits and Systems, 1997. Proceedings of the 40th Midwest Symposium on
Print_ISBN :
0-7803-3694-1
DOI :
10.1109/MWSCAS.1997.662339
