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ADF4151:  Fractional-N/Integer-N PLL Synthesizer

Product Details

Product Status:Recommended for New Designs

The ADF4151 allows implementation of fractional-N or integer-N phase-locked loop (PLL) frequency synthesizers if used with an external voltage controlled oscillator (VCO), loop filter, and external reference frequency.

The ADF4151 is used with external VCO parts and is footprint and software compatible with the ADF4350. The part consists of a low noise digital phase frequency detector (PFD), a precision charge pump, and a programmable reference divider. There is a Σ-Δ based fractional interpolator to allow programmable fractional-N division. The INT, FRAC, and MOD registers define an overall N divider [N = (INT + (FRAC/MOD))]. The RF output phase is programmable for applications that require a particular phase relationship between the output and the reference. The ADF4151 also features cycle slip reduction circuitry, leading to faster lock times without the need for modifications to the loop filter.

Control of all the on-chip registers is through a simple 3-wire interface. The device operates with a power supply ranging from 3.0 V to 3.6 V that can be powered down when not in use.

The ADF4151 is available in a 5 mm × 5 mm package.

APPLICATIONS

  • Wireless infrastructure (W-CDMA, TD-SCDMA, WiMax,
    GSM, PCS, DCS, DECT)
  • Test equipment
  • Wireless LANs, CATV equipment
  • Clock generation

FEATURES and BENEFITS

  • Fractional-N synthesizer and integer-N synthesizer
  • RF bandwidth to 3.5 GHz
  • 3.0 V to 3.6 V power supply
  • 1.8 V logic compatibility
  • Separate charge pump supply (VP) allows extended tuning voltage (up to 5.5 V) in 3 V systems
  • Programmable dual-modulus prescaler of 4/5 or 8/9
  • Programmable RF output phase
  • 3-wire serial interface
  • Analog and digital lock detect
  • Switched bandwidth fast lock mode
  • Cycle slip reduction

Functional Block Diagram for ADF4151

Documentation

Title Content Type File Type
ADF4151: Fractional-N/Integer-N PLL Synthesizer Data Sheet  (Rev B, 12/2011) (pdf, 473 kB) Data Sheets PDF
Fundamentals of Frequency Synthesis, Part 1: Phased Locked Loops
The first of a two-part series on frequency synthesis, with an introduction to Phased Locked Loops. This webcast looks at the need for frequency generation, the techniques from the past present and future, and how to assess the performance of a frequency synthesis, and real world applications. Particular attention will be focused on Phase Locked Loops (PLL's) as frequency synthesizers.
Webcasts WEBCAST
Fundamentals of Frequency Synthesis, Part 2: Direct Digital Synthesis (DDS)
This month we conclude our two-part series on frequency synthesis, with an introduction to Direct Digital Synthesis. We will give a basic review of how a direct digital synthesis system works, touching on the inner workings of the DDS engine at a relatively high level. We will also discuss the tradeoffs between PLL and DDS technology as a base choice for frequency synthesis needs.
Webcasts WEBCAST
UG-476: PLL Software Installation Guide  (pdf, 520 kB) User Guides PDF
UG-369: Evaluation Board for the ADF4151 PLL Frequency Synthesizer  (pdf, 1494 kB) User Guides PDF
New Analog Devices’ PLL Synthesizers Deliver Utmost Flexibility and Phase Noise Performance (05 Jan 2012) Press Releases HTML
RF Source Booklet  (PDF, 4353 kB)
RF IC Product Overview - Version P (02/2014)
Overview PDF
RAQs index Rarely Asked Questions HTML
Glossary of EE Terms Glossary HTML

Design Tools,Models,Drivers & Software

Title Content Type File Type
ADIsimRF
ADI’s ADIsimRF design tool provides calculations for the most important parameters within the RF signal chain, including cascaded gain, noise figure, IP3, P1dB, and total power consumption.
ADIsim Design/Simulation Tools HTML
ADIsimPLL™- Version 3.43
ADIsimPLL enables the rapid and reliable evaluation of new high performance PLL products from ADI. It is the most comprehensive PLL Synthesizer design and simulation tool available today. Simulations performed include all key non-linear effects that are significant in affecting PLL performance. ADIsimPLL removes at least one iteration from the design process, thereby speeding the design- to-market.
ADIsim Design/Simulation Tools HTML
ADF4151 Evaluation Board Software  (zip, 12017 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 PLL Active Filter for the ADF4151

  • For an ultralow noise, rail-to-rail amplifier, we recommend the OP184.
Recommended RF Mixers for the ADF4151
  • For 10 MHz to 6 GHz, high dynamic range active mixers, we recommend the ADL5801 or the dual ADL5802.
Recommended Linear Regulators for the ADF4151
  • For ultralow noise, 3V applications,150mA output, we recommend the ADP150.
  • For ultalow noise, 3V applications, 200mA output, we recommend the ADP151.
  • For high accuracy, 5V applications, we recommend the ADP3334.
  • For a step up, 3V to 5V regulator, we recommend the ADP1613.
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.

ADF4151 Evaluation Board
Model Description Price RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
EVAL-ADF4151EB1Z Status: Production Evaluation Board $150.00 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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