Description

26.5 GHz, Integer N/Fractional-N, PLL Synthesizer Features: 1 GHz to 26.5 GHz bandwidth Ultralow noise PLL Integer N = −235 dBc/Hz, fractional-N = −231 dBc/Hz High maximum PFD frequency Integer N = 250 MHz, fractional-N = 125 MHz 25-bit fixed/49-bit variable fractional modulus mode Single-ended reference input 3.3 V power supply, 3.3 V charge pump Integrated 1.8 V logic capability Phase resync Programmable charge pump currents: 16× range Digital lock detect 3-wire serial interface with register readback option Hardware and software power-down mode Operating range from −40°C to +105°C