CX74002

• Image reject upconverter saves two RF surface acoustic waves (SAWs) filters in dual-band applications
• Driver gain can be changed either by a continuous signal or by a step signal through the driver gain control signal
• 100-800 MHz oscillator (external tank)
• VCO_ON feature to increase the talk time of the radio
• Two separate phase lock loop (PLL) synthesizers
• Dual-loop multiband operation
• Power-save mode for both standby and lowerfrequency operation
• Fully programmable PLL dividers
• Selectable chargepump currents for multi- VCO applications controlled via serial bus interface

• cdmaOne, cdma2000 and AMPS modes in the following bands:
       U.S. cellular
       Japan cellular
       U.S. PCS
       Korea PCS
• WCDMA in the IMT-2000 band