The ADRF6755 series 100 to 2400MHz I/Q Modulator with integrated fractional-N PLL and VCO. The ADRF6755 is a highly integrated quadrature modulator, frequency synthesizer and programmable attenuator. The ADRF6755 modulator includes a high modulus, fractional-N frequency synthesizer with integrated VCO, providing less than 1Hz frequency resolution and a 47dB digitally controlled output attenuator with 1dB steps. Control of all the on-chip registers is through user-selected SPI interface or I²C interface.
I/Q modulator with integrated fractional-N PLL and VCO
