SynSynthesizer/modulator offers programmable bandwidth

December 22, 2016 // By Jean-Pierre Joosting
RFMW, Ltd., has announced design and sales support for a low power, highly integrated, wideband, IQ modulator with integrated fractional-N synthesizer and voltage controlled oscillator (VCO).

The RFMD2081 modulator from Qorvo features an input 3 dB bandwidth of 100 MHz, and can generate output frequencies of between 45 MHz and 2700 MHz, making it suitable for a wide range of applications such as satellite communications, QPSK/QAM modulators, wireless broadband, point to point radios and software defined radios (SDR).

The fractional-N synthesizer in the RFMD2081 offers very low spurious levels with typical step size of 1.5 Hz. Typical noise floor is -162 dBm/Hz. Programable via serial interface, P1dB is 4 dBm and the device runs from a 2.7 to 3.3 V supply consuming 135 mA. Qorvo offers this I/Q modulator in a compact 5- x 5-mm QFN package.