ADF4152HV

Data Sheet High Voltage, Fractional-N/ Integer N PLL Synthesizer ADF4152HV FEATURES GENERAL DESCRIPTION Fractional-N synthesizer and integer N synthesizer High voltage charge pump: VP = 6.0 V to 30 V Radio frequency (RF) bandwidth to 5.0 GHz Programmable output divider Synthesizer power supply: 3.0 V to 3.6 V Programmable dual-modulus prescaler Programmable output power level Programmable charge pump currents RF output mute function 3-wire serial interface Analog and digital lock detect APPLICATIONS Wireless infrastructure Microwave point to point/point to multipoint radios Very small aperture terminal (VSAT) radios Test equipment Private land mobile radios The ADF4152HV is a 5.0 GHz, fractional-N or integer N frequency synthesizer with an integrated high voltage charge pump. The synthesizer can drive external wideband voltage controlled oscillators (VCOs) directly, eliminating the need for operational amplifiers to achieve higher tuning voltages. The integrated high voltage charge pump simplifies design and reduces cost while improving phase noise, in contrast to active filter topologies, which tend to degrade phase noise compared to passive filter topologies. The VCO frequency can be divided by 1, 2, 4, 8, or 16 to allow the user to generate RF output frequencies as low as 31.25 MHz. For applications that require isolation, the RF output stage can be muted. The mute function is both pin and software controllable. A simple 3-wire interface controls all on-chip registers...