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ADF4356 - 6.8GHz Wideband Synthesizer

Description

The ADF4356 allows implementation of fractional-N or integer-N phase-locked loop (PLL) frequency synthesizers when used with an external loop filter and an external reference frequency.

A series of frequency dividers at another frequency output permits operation from 53.125 MHz to 6800 MHz.

Features

  • RF output frequency range: 53.125 MHz to 6800 MHz.
  • Integer channel:.
  • 227 dBc/Hz.
  • Fractional channel:.
  • 225 dBc/Hz.
  • Integrated RMS jitter (1 kHz to 20 MHz): 97 fs for 6 GHz output.
  • Fractional-N synthesizer and integer-N synthesizer.
  • Pin compatible to the ADF4355.
  • High resolution, 52-bit modulus.
  • Phase frequency detector (PFD) operation to 125 MHz.
  • Reference input frequency operation to 600 MHz.
  • Maintains frequency lock over.

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Data Sheet ADF4356 6.8 GHz Wideband Synthesizer with Integrated VCO FEATURES ► RF output frequency range: 53.125 MHz to 6800 MHz ► Integer channel: −227 dBc/Hz ► Fractional channel: −225 dBc/Hz ► Integrated RMS jitter (1 kHz to 20 MHz): 97 fs for 6 GHz output ► Fractional-N synthesizer and integer-N synthesizer ► Pin compatible to the ADF4355 ► High resolution, 52-bit modulus ► Phase frequency detector (PFD) operation to 125 MHz ► Reference input frequency operation to 600 MHz ► Maintains frequency lock over −40°C to +85°C ► Low phase noise, voltage controlled oscillator (VCO) ► Programmable divide by 1, 2, 4, 8, 16, 32, or 64 output ► Analog and digital power supplies: 3.3 V ► Charge pump and VCO power supplies: 5.0 V typical ► Logic compatibility: 1.
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