LMX2572LP Wideband RF Synthesizer Texas Instruments LMX2572LP Wideband RF Synthesizer is a low-power, high-performance wideband synthesizer that can generate one frequency from 12.5MHz to 2GHz without using an internal doubler. The PLL delivers excellent performance while consuming just 70mA from a single 3.3V supply. For applications like digital mobile radio (DMR) and wireless microphones, the LMX2572LP supports FSK modulation. Discrete-level FSK and pulse-shaping FSK are supported. Direct digital FSK modulation is achievable through programming or pins.