RF2909 11 Typical Applications • Direct Sequence Spread Spectrum • Spread Spectrum Cordless Phones • Portable Battery Powered Equipment • GMSK, QPSK, DQPSK, QAM Modulation • 915MHz ISM Applications 3V 915MHZ SPREAD-SPECTRUM TRANSMITTER IC Product Description The RF2909 is a monolithic integrated transmitter IC capable of universal direct modulation.
The quadrature modulator allows for a variety of modulation formats and compound carriers.
The transmitter has two power control modes.
Two inputs can be controlled digitally for stepping output power 1mW, 10mW, or 70mW output power.
Or, the output level can be adjusted by an analog input from 1mW to 80mW.
The quadrature mixers have differential...

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