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HMC983LP5ETR 32-QFN Exposed P
  • HMC983LP5ETR
  • HMC983LP5ETR 0
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Fractional-N Divider and Frequency sweeper 32Pin QFN EP T/R

Manufacturer :
Analog Devices, Inc
Package/Case :
32-QFN Exposed P
Product Categories :
Frequency Dividers, Multipliers, & Detectors ; Frequency Dividers, Prescalers & Counters
RoHs Status:

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HMC983LP5ETR 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.


  • 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


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

HMC983LP5ETR Block Diagram
(Picture: Diagram)

Technical Parameters

Product Lifecycle Status Active RoHS Compliant
Packaging Cut Tape (CT) Lead Free Status Contains Lead
Number of Pins 32 ECCN Code EAR99
Case/Package 32-QFN Exposed Pad

HMC983LP5ETR Documents

  • HMC983 Technical Documentation/Data sheet

HMC983LP5ETR Related Products

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Analog Devices, Inc. was founded by two MIT graduates, Ray Stata and Matthew Lorber in 1965. The same year, the company released its first product, the model 101 op amp, which was a hockey-puck sized...

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