Title :
CDMA mobile station modem ASIC
Author :
Hinderling, Jurg K. ; Rueth, Tim ; Easton, Ken ; Eagleson, Dawn ; Kindred, Dan ; Kerr, Richard ; Levin, Jeff
Author_Institution :
Qualcomm Inc., San Diego, CA, USA
fDate :
3/1/1993 12:00:00 AM
Abstract :
An implementation of a complete modulator/demodulator (modem) for use in portable and mobile cellular telephones implementing code-division multiple-access (CDMA) digital technology is described. Key features are high circuit density and complexity, a short design cycle, flexibility, testability, and low power consumption. A universal microprocessor interface allows for efficient control, data transfer, and testability of the ASIC. The chip is fabricated in double-metal 0.8 μm CMOS technology and implements a mixture of custom and synthesized design approaches. The power consumption is less than 350 mW at 5 V
Keywords :
CMOS integrated circuits; application specific integrated circuits; cellular radio; code division multiple access; modems; 0.8 micron; 350 mW; 5 V; ASIC; CDMA mobile station modem ASIC; circuit density; code-division multiple-access; custom/synthesized design; data transfer; double-metal CMOS; efficient control; features; flexibility; implementation; low power consumption; mobile cellular telephones; modem; portable cellular telephones; power consumption; short design cycle; testability; universal microprocessor interface; Application specific integrated circuits; CMOS technology; Circuit testing; Demodulation; Digital modulation; Energy consumption; Modems; Modulation coding; Multiaccess communication; Telephony;
Journal_Title :
Solid-State Circuits, IEEE Journal of
