Conexant Delivers RF Chipsets for 2G and 3G CDMA Applications

The CX74002 device offers the highest level of integration a trimode, dual-band CDMA transmit RFIC. The device is designed to meet the needs of both 2G and 3G CDMA systems. Specifically targeting the cdmaOne, cdma2000, and AMPS markets in the U.S. and Korean cellular, Japan cellular, Korean PCS and U.S. PCS bands. The CX74002 is also designed to be suitable for wideband CDMA (WCDMA) applications in the IMT-2000 band. The device is built using Conexant’s advanced silicon germanium (SiGe) bipolar complementary metal oxide semiconductor (BiCMOS) process technology. This process results in best-in-class current consumption performance, hence increasing cellular phone talk time.

Distinguishing Features
• Best-in-class current consumption
• Tri-mode, dual-band functionality
• I/Q to RF integration
• Image-reject mixer
• Three battery-cell operation (2.7V < VCC < 3.6V)
• Split-band PCS drivers to improve Rx Band noise performance
• Tx power control with 90dB dynamic range
• Variable-gain RF block to meet in-band signalto-noise ratio (SNR)
• 6mm x 6mm land grid array (LGA) chipscale package