Product Description
The RF2480 is a monolithic integrated quadrature modulator IC capable of universal direct modulation for high-frequency AM, PM, or compound carriers. This low-cost IC features excellent linearity, noise floor, and over-temperature carrier suppression performance. The device implements differential amplifiers for the modulation inputs, 90° carrier phase shift network, carrier limiting amplifiers, two matched double-balanced mixers, summing amplifier, and an output RF amplifier which will drive 50 from 800MHz to 2500MHz. Component matching is used to obtain excellent amplitude balance and phase accuracy.

FEATUREs
• Typical Carrier Suppression>35dBc over
   temperature with highly linear operation
• Single 5V Power Supply
• Integrated RF quadrature network
• Digitally controlled Power Down mode
• 800MHz to 2500MHz operation

Typical Applications
• Dual-Band CDMA Base Stations
• TDMA/TDMA-EDGE Base Stations
• GSM-EDGE/EGSM Base Stations
• W-CDMA Base Stations
• WLAN and WLL Systems
• TETRA Systems