ADF4155
Info : RECOMMENDED FOR NEW DESIGNS
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ADF4155

Integer-N / Fractional-N PLL Synthesizer

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Info : RECOMMENDED FOR NEW DESIGNS tooltip
Info : RECOMMENDED FOR NEW DESIGNS tooltip
Part Details
Part Models 2
1ku List Price Starting From $6.17
Features
  • Input frequency range: 500 MHz to 8000 MHz
  • Fractional-N synthesizer and integer-N synthesizer
  • Phase frequency detector (PFD) up to 125 MHz
  • High resolution 38-bit modulus
  • Separate charge pump supply (VP) allows extended tuning voltage in 5 V systems
  • Programmable divide by 1, 2, 4, 8, 16, 32, or 64 output
  • Differential and single-ended reference inputs
  • Power supply: 3.3 V ± 5%
  • Logic compatibility: 1.8 V
  • Programmable dual-modulus prescaler (P) of 4/5 or 8/9
  • Programmable output power level
  • 3-wire serial interface
  • Analog and digital lock detect
Additional Details
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The ADF4155 allows implementation of fractional-N or integer-N phase-locked loop (PLL) frequency synthesizers when used with an external loop filter, external voltage controlled oscillator (VCO), and external reference frequency.

The ADF4155 is for use with external VCO parts up to an 8 GHz operating frequency. The high resolution programmable modulus allows synthesis of exact frequencies with 0 Hz error.

The VCO frequency can be divided by 1, 2, 4, 8, 16, 32, or 64 to allow the user to generate RF output frequencies as low as 7.8125 MHz.

Control of all on-chip registers is through a simple 3-wire interface. The device operates with a nominal power supply of 3.3 V ± 5% and can be powered down when not in use.

The ADF4155 is available in a 24-lead, 4 mm × 4 mm LFCSP package.

APPLICATIONS

  • Wireless infrastructure (W-CDMA, TD-SCDMA, WiMAX, GSM, PCS, DCS, DECT)
  • Point to point/point to multipoint microwave links
  • Test equipment
  • Wireless LANs, CATV equipment
  • Clock generation
Part Models 2
1ku List Price Starting From $6.17

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
ADF4155BCPZ
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  • HTML
ADF4155BCPZ-RL7
  • HTML
  • HTML
Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 1

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EVAL-ADF4155

ADF4155 Evaluation Board

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EVAL-ADF4155

ADF4155 Evaluation Board

ADF4155 Evaluation Board

Features and Benefits

  • Self-contained board, including ADF4155 synthesizer, differential 122.88 MHz temperature controlled crystal oscillator (TCXO), voltage controlled oscillator (VCO) 5.725 GHz to 5.875 GHz, loop filter, USB interface, and voltage regulators 
  • Designed for a 61.44 MHz phase frequency detector (PFD) frequency, 0.9 mA charge pump current (lcp), and 80 kHz loop bandwidth 
  • Accompanying software allows complete control of synthesizer functions from a PC
  • Externally powered by 5.5 V

Product Detail

The EV-ADF4155EB1Z board evaluates the performance of the ADF4155 frequency synthesizer for phase-locked loops (PLLs). The evaluation board contains the ADF4155 synthesizer, the loop filter, a VCO, a differential 122.88 MHz reference TCXO, a USB interface, power supply connectors, and SMA connectors. A USB cable is included to connect the board to a PC USB port.

In addition, the evaluation kit contains Windows-based software to allow easy programming of the synthesizer.

Tools & Simulations

Tools & Simulations 1

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