Features and Benefits

  • Wideband: DC - 7 GHz Input
    • 20-bit Frequency Divider
  • Low Noise: -160 dBc/Hz
  • Low Spurious: Largest Spurious - 95 dBc
  • 48-bit 100 MHz Delta-Sigma Modulator (DSM)
    • Configurable DSM Size
    • Programmable Seed
    • Phase Step
  • Integrated Frequency Sweeper
    • Linear, Coherent Sweeps
    • 2-Way, 1-Way, & User Defined Sweep Modes
    • Automatic or Triggered
    • Programmable Seed
    • SPI & External Triggering
  • 5-GPIO's, can be used for External DSM
  • Cycle Slip Prevention Support with PFD Chip (HMC984LP4E)
  • Differential VCO Input & Divider Output
  • Programmable Output Current Control:
    • 5 mA to 17.5 mA Open Collector Output Driver
  • 32 Lead 5×5mm SMT Package

Product Details

HMC983LP5E is a fractional frequency divider targeted for fractional-N frequency synthesis, and stand-alone low noise frequency divider applications that require exceptional spurious performance.

Although the HMC983LP5E can work with any VCO and/or compatible Phase Detector, best performance and features will be achieved when paired with the companion part, the HMC984LP4E.

Fabricated in SiGe BiCMOS process, the HMC983LP5E features a 48-bit Delta Sigma Fractional Modulator (DSM) with programmable phase accumulator size, enabling precise control of frequency step size and resolution. Integrated DSM can generate frequencies with nearly 0 Hz frequency error. The DSM also includes a built-in programmable frequency sweep capability, with various automatic and user defined sweep modes and triggering options, including hardware trigger pin, or SPI trigger with optional delayed trigger.

HMC983LP5E is a versatile part capable of various configurations. It has 5 general purpose I/Os (GPIOs). DSM outputs are made available from the GPIO port, enabling the HMC983LP5E to import and/or export DSM sequences for various configuration options.

HMC983LP5E divider outputs are differential, open collector with programmable current to accommodate different off-chip loads.


  • Test Equipment
  • Portable Instruments
  • High Performance Fractional-N Frequency Synthesizers
  • with Ultra Low Spurious
  • Stand-Alone Divider and/or Delta-Sigma Modulator

Product Lifecycle icon-recommended Recommended for New Designs

This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.

Evaluation Kits (1)

Design Resources

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.


HMC983 Discussions

HMC983 Didn't find what you were looking for? Ask the Analog community »

Sample & Buy

Sample & Buy functionality exists in desktop site
Check Inventory

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.

Price Table Help


Evaluation Boards Pricing displayed is based on 1-piece.
Up to two boards can be purchased through Analog.com. To order more than two, please purchase through one of our listed distributors.
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.