Wide Band Microwave Frac-Integer-N Integrated Synthesizer

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Parameter NameParameter Value
Packing TypeTape And Reel
RoHs compliantEcopack2
Package NameVFQFPN 36 6x6x1-0

The STuW81300 includes a dual architecture frequency synthesizer (Fractional-N and Integer- N), four low phase noise VCOs with a fast automatic center frequency calibration providing a very wide frequency range, from 1.925 GHz to 16 GHz, with a single device.

The STuW81300 optimizes size and cost of the final application by the integration of low noise LDO voltage regulators and internally matched broadband RF outputs.

Additional features include a crystal oscillator core, external VCO mode, output mute function and low power mode to trade current consumption with phase noise performance and/or output level.

Key features
  • Output frequency range: 1.925 GHz to 16 GHz
    • RF out 1 (VCO, VCO÷2): 1.925-8.0 GHz
    • RF out 2 (VCO x 2): 7.7-16.0 GHz
  • Very low noise
    • Normalized phase noise floor: -227 dBc/Hz
    • VCO phase noise (6.0 GHz): -131 dBc/Hz @ 1 MHz offset
    • Noise floor (6.0 GHz): -158 dBc/Hz
    • Phase noise (12 GHz): -125 dBc/Hz
      @ 1 MHz offset
    • Noise floor (12 GHz): -154 dBc/Hz
  • Integrated VCOs with fast automatic center frequency calibration
  • External VCO option with 5 V charge pump
  • Fundamental VCO rejection at doubler output higher than 20 dB
  • Internally broadband matched RF outputs delivering +6 dBm @6 GHz and +4 dBm @12 GHz single-ended
  • Integrated low noise LDOs
  • Maximum phase detector frequency: 100 MHz
  • Exact frequency mode
  • Differential reference clock input (LVDS and LVECPL compliant) supporting up to 800 MHz
  • Integrated reference crystal oscillator core
  • R/W SPI interface
  • Logic compatibility/tolerance 1.8 V/3.3 V
  • Supply voltage: 3.0 V to 5.4 V
  • Small size exposed pad VFQFPN36 package 6x6x1.0 mm
  • Process: BICMOS 0.25 µm SiGe