Qualcomm tests Zero IF technology

QUALCOMM conducted the first call using the its radioOne Zero Intermediate Frequency (Zero IF) technology and the MSM6000(TM) Mobile Station Modem (MSM(TM)) CDMA2000 1X chipset. The radioOne Zero IF architecture eliminates the need for intermediate frequency components such as IF ICs, IF surface acoustic wave (SAW) filters and IF voltage-controlled oscillators. This reduces printed circuit board area and bill of material costs for future wireless handsets and other devices. The call was placed from Don Schrock, president of QCT, to Dr. Irwin Jacobs, QUALCOMM chairman and CEO, at Qualcomm's San Diego headquarters.

Calls were made using radioOne technology with both the MSM6000 and MSM6050(TM) baseband chips. The first-generation radioOne chipset consists of the RFT6100(TM), RFR6000(TM) and RFL6000(TM) chips, which perform the receive and transmit functions for CDMA2000 1X wireless devices while eliminating all IF components. When combined with QCT's MSM6000 or MSM6050 baseband processors, the radioOne chipset forms a complete CDMA2000 1X solution, from radio frequency (RF) to baseband.

Sampling of the initial QCT radioOne Zero IF solution is expected to begin in the first quarter of calendar year 2002.