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 50ï 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
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