ADF4159CCPZ Datasheet PDF - ADI

GENERAL DESCRIPTION

●The ADF4159 is a 13 GHz, fractional-N frequency synthesizer with modulation and both fast and slow waveform generation capability. The part uses a 25-bit fixed modulus, allowing subhertz

●frequency resolution. The ADF4159 consists of a low noise digital phase frequency detector (PFD), a precision charge pump, and a programmable reference divider. The Σ-Δ-based fractional interpolator allows programmable fractional-N division. The INT and FRAC registers define an overall N divider as N = INT + (FRAC/225).

●FEATURES

●RF bandwidth to 13 GHz

●High and low speed FMCW ramp generation

●25-bit fixed modulus allows subhertz frequency resolution

●PFD frequencies up to 110 MHz

●Normalized phase noise floor of −224 dBc/Hz

●FSK and PSK functions

●Sawtooth, triangular, and parabolic waveform generation

●Ramp superimposed with FSK

●Ramp with 2 different sweep rates

●Ramp delay, frequency readback, and interrupt functions

●Programmable phase control

●2.7 V to 3.45 V analog power supply

●1.8 V digital power supply

●Programmable charge pump currents

●3-wire serial interface

●Digital lock detect

●ESD performance: 3000 V HBM, 1000 V CDM

●APPLICATIONS

●FMCW radars

●Communications test equipment

●Communications infrastructure