ADF41510

RECOMMENDED FOR NEW DESIGNS

10 GHz, Integer-N/Fractional-N PLL Synthesizer

Data Sheet (Rev. A) Product Selection Table
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Overview

  • 1 GHz to 10 GHz bandwidth
  • Ultra-low noise phase locked loop (PLL)
    • Integer-N = −235 dBc/Hz, fractional-N = −231 dBc/Hz
  • High maximum phase frequency detector (PFD) frequency
    • Integer-N = 250 MHz, fractional-N = 125 MHz/li>
  • 25-bit fixed/49-bit variable fractional modulus mode
  • Single-ended reference input
  • 3.3 V power supply, 3.3 V charge pump
  • Integrated 1.8 V logic capability
  • Phase resync
  • Programmable charge pump currents: 16× range
  • Digital lock detect (DLD)
  • 3-wire serial interface with register readback option
  • Hardware and software power-down mode
  • Operating range: −40°C to +105°C

The ADF41510 is an ultra-low noise frequency synthesizer that can be used to implement local oscillators (LOs) as high as 10 GHz in the upconversion and downconversion sections of wireless receivers and transmitters.

The ADF41510 is designed on a high-performance silicon germanium (SiGe), bipolar complementary metal-oxide semiconductor (BiCMOS) process, achieving a normalized phase noise floor of −235 dBc/Hz. The PFD operates up to 250 MHz (integer-N mode)/125 MHz (fractional-N mode) for improved phase noise and spur performance. The variable modulus, Σ-Δ modulator, allows extremely fine resolution when using a 49-bit divide value. The ADF41510 can be used as an integer-N PLL, or it can be used as a fractional-N PLL with either a fixed modulus for subhertz frequency resolution or variable modulus for subhertz exact frequency resolution.

A complete PLL is implemented when the synthesizer is used with an external loop filter and voltage-controlled oscillator (VCO). The 10 GHz bandwidth eliminates the need for a frequency doubler or divider stage, simplifying system architecture and reducing cost. The ADF41510 is packaged in a compact, 24-lead, 4 mm × 4 mm LFCSP.

APPLICATIONS

  • Test equipment and instrumentation
  • Wireless infrastructure
  • Microwave point-to-point and multipoint radios
  • Very small aperture terminal (VSAT) radios
  • Aerospace and defense
ADF41510
10 GHz, Integer-N/Fractional-N PLL Synthesizer
ADF41510 Functional Block Diagram ADF41510 Pin Configuration
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Documentation

Data Sheet 1

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Software Resources

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Tools & Simulations

IBIS Model 1

Evaluation Kits

eval board
schematic 1
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EVAL-ADF41510

Evaluating the ADF41510 10 GHz, Integer-N/Fractional-N PLL Synthesizer

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Features and Benefits

  • EV-ADF41510SD1Z
    • ADF41510 frequency synthesizer, 100 MHz crystal oscillator, loop filter, USB interface, and voltage regulators
  • EV-ADF41510SD2Z
    • All features of EV-ADF41510SD1Z plus HMC587 5 GHz to 10 GHz voltage-controlled oscillator (VCO)
  • Windows®-based software allows control of synthesizer functions from a PC
  • Externally powered by 6 V and 25 V

Product Details

The EV-ADF41510SD1Z and EV-ADF41510SD2Z are evaluation boards that can be used to evaluate all the features of the ADF41510. The EV-ADF41510SD1Z requires an external VCO. The EV-ADF41510SD2Z includes an on-board 5 GHz to 10 GHz HMC587 VCO.

The EV-ADF41510SD1Z has Subminiature Version A (SMA) connectors to connect the charge pump output (VTUNE) to the tuning input of the VCO and the phase-locked loop (PLL) radio frequency (RF) input (RFIN) to the VCO output.

Both variants of the evaluation board include the ADF41510 frequency synthesizer, 100 MHz reference (crystal oscillator (XO)), loop filter, USB interface, low noise voltage regulators.

For easy programming of the synthesizer, download the Windowsbased software from the ADF41510 product page ADF41510. The file transfer program (FTP) user name and password are printed on the label inside the lid of the evaluation board box.

The evaluation board requires an SDP-S, which is not included with the kit. The SDP-S allows software programming of the ADF41510 device through a USB interface.

Full specifications on the ADF41510 are available in the ADF41510 data sheet available from Analog Devices, Inc., and must be consulted with this user guide when using the EVAL-ADF41510 evaluation board.
EVAL-ADF41510
Evaluating the ADF41510 10 GHz, Integer-N/Fractional-N PLL Synthesizer
EVAL-ADF41510 Board Photo Angle View EVAL-ADF41510 Board Photo Top View EVAL-ADF41510 Board Photo Bottom View

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