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ADF4159 - Fractional-N Frequency Synthesizer

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.

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.

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Full PDF Text Transcription

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Data Sheet Direct Modulation/Fast Waveform Generating, 13 GHz, Fractional-N Frequency Synthesizer ADF4159 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.
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