Covering up to 1.34 GHz, the LMX2571 integrates an ultra-low-noise PLLatinum fractional-N phase-locked loop with a multicore voltage-controlled oscillator , enabling low phase noise and spurs at only 39 mA . The LMX2571 enhances radio sensitivity and dynamic range for applications such as low-power wireless communication, handheld oscilloscopes and signal analyzers.An integrated frequency modulator enables the user to directly modulate the carrier to produce analog frequency modulation or frequency-shift-keying , benefiting portable wireless applications such as land mobile radios, software-defined radios and wireless microphones.