ADF4355-2 Microwave Wideband Synthesizer with Integrated VCO

The ADF4355-2 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 permits operation from 54 MHz to 4400 MHz.

The ADF4355-2 has an integrated VCO with a fundamental output frequency ranging from 3400 MHz to 6800 MHz. In addition, the VCO frequency is connected to divide by 1, 2, 4, 8, 16, 32, or 64 circuits that allow the user to generate RF output frequencies as low as 54 MHz. For applications that require isolation, the RF output stage can be muted. The mute function is both pin and software controllable.

Control of all on-chip registers is through a simple 3-wire interface. The ADF4355-2 operates with analog and digital power supplies ranging from 3.15 V to 3.45 V, with charge pump and VCO supplies from 4.75 V to 5.25 V. The ADF4355-2 also contains hardware and software power-down modes.

Applications
  • Wireless infrastructure (W-CDMA, TD-SCDMA, WiMAX, GSM, PCS, DCS, DECT)
  • Point to point/point to multipoint microwave links
  • Satellites/VSATs
  • Test equipment/instrumentation
  • Clock generation
Features and Benefits
  • RF output frequency range: 54 MHz to 4400 MHz
  • Fractional-N synthesizer and integer-N synthesizer
  • High resolution 38-bit modulus
  • 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 V typical
  • Logic compatibility: 1.8 V
  • Programmable dual modulus prescaler of 4/5 or 8/9
  • Programmable output power level
  • RF output mute function
  • 3-wire serial interface
  • Analog and digital lock detect
  • RF & Microwave
    Clock & Timing
    Data Sheets
    Documentnote
    ADF4355-2: Wideband Synthesizer with Integrated VCO Data Sheet (Rev. B)PDF 533 kB
    Application Notes
    Documentnote
    AN-1381: How to Bypass VCO Calibration for the ADF4355-2 (Rev. 0)PDF 165.73 K
    User Guides
    Documentnote
    UG-804: Evaluating the ADF4355-2 Fractional-N/Integer-N PLL Frequency SynthesizerPDF 1.44 M
    Order Information
    Part NumberPackagePacking QtyTemp RangePrice 100-499Price 1000+RoHS
    ADF4355-2BCPZ Production32 ld LFCSP (5x5x.75mm) w/3.6exposed padOTH 490-40 to 85C19.7513.01Y
    ADF4355-2BCPZ-RL7 Production32 ld LFCSP (5x5x.75mm) w/3.6exposed padREEL 1500-40 to 85C013.01Y
    Evaluation Boards
    Part NumberDescriptionPriceRoHS
    AD-FMCADC7-EBZEvaluation Board-1Y
    EV-ADF4355-2SD1ZEvaluation Board-1Y
    EVAL-SDP-CS1ZSDP-S Controller Board - Interface to EV-ADF4355-2SD1Z (also required)49Y
    Reference Materials
    ADF4355-2: Wideband Synthesizer with Integrated VCO Data Sheet (Rev. B) adf4355-2
    AN-1381:如何为ADF4355-2设置VCO旁路校准 (Rev. 0) adf4355-2
    AN-1381: How to Bypass VCO Calibration for the ADF4355-2 (Rev. 0) adf4355-2
    UG-804: Evaluating the ADF4355-2 Fractional-N/Integer-N PLL Frequency Synthesizer adf4355-2
    集成VCO的低成本PLL支持紧凑型LO解决方案 hmc829