ADF5355:  Microwave Wideband Synthesizer with Integrated VCO

Product Details

Product Status:Recommended for New Designs

The ADF5355 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. The wideband microwave VCO design permits frequency operation from 6.8 GHz to 13.6 GHz at one radio frequency (RF) output. A series of frequency dividers at another frequency output permits operation from 54 MHz to 6800 MHz.

The ADF5355 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 ADF5355 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 ADF5355 also contains hardware and software power-down modes.


  • 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


  • RF output frequency range: 54 MHz to 13600 MHz
  • Fractional-N synthesizer and integer-N synthesizer
  • High resolution 38-bit modulus
  • Phase frequency detector (PFD) operation to 125 MHz
  • Reference 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 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
  • Analog and digital lock detect
  • Supported in the ADIsimPLL design tool

Functional Block Diagram for ADF5355

Design Tools,Models,Drivers & Software

Title Content Type File Type
ADF4355 and ADF5355 Evaluation Software  (zip, 21337 kB) Evaluation Software ZIP

Evaluation Kits & Symbols & Footprints

Evaluation Boards & KitsView the Evaluation Boards and Kits page for documentation and purchasing

Symbols and Footprints— Analog Devices offers Symbols & Footprints which are compatible with a large set of today’s CAD systems for broader and easier support.

Product Recommendations & Reference Designs

Companion Products

Suggested Companion Products

Recommended Linear Regulators for the ADF5355
  • For low noise LDO supply with fixed output voltage, we recommend the ADM7150.
  • For low noise LDO supply with adjustable output voltage, we suggest the ADM7151.
Recommended Modulators/Demodulators for the ADF5355
  • For broadband quadrature IF/RF signals, we recommend the ADL5375 and ADL5380.
Recommended Mixers for the ADF5355
  • For low noise without need for a high power level LO drive, we recommend the ADL5350.
  • For 10 MHz to 6 GHz, high dynamic range active mixer, we recommend ADL5801 or ADL5802.
Recommended Clock Drivers for the ADF5355 Recommended Power Solutions
  • For selecting voltage regulator products, use ADIsimPower.

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Price, packaging, availability

Price Table Help

The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

ADF5355 Evaluation Board
Model Description Price RoHS View PCN/ PDN Check Inventory/
EV-ADF5355SD1Z Status: Production Evaluation Board $450.00 Yes - Contact ADI
EVAL-SDP-CS1Z Status: Contact ADI SDP-S Controller Board - Interface to EV-ADF5355SD1Z (also required) $49.00 Yes -

Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.

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