TRF3761-J

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Low Noise Integer N PLL Frequency Synthesizer With Integrated VCO

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Product details

Parameters

Integrated VCO Yes Output frequency (Min) (MHz) 2140 Output frequency (Max) (MHz) 2295 Normalized PLL phase noise (dBc/Hz) -137 Current consumption (mA) 130 open-in-new Find other RF PLLs & synthesizers

Package | Pins | Size

VQFN (RHA) 40 36 mm² 6 x 6 open-in-new Find other RF PLLs & synthesizers

Features

  • Fully Integrated VCO
  • Low Phase Noise: –137dBc/Hz (at 600kHz, fVCO
    of 1.9GHz)
  • Low Noise Floor: –158dBc/Hz at 10MHz Offset
  • Integer-N PLL
  • Input Reference Frequency range: 10MHz to
    104MHz
  • VCO Frequency Divided by 2-4 Output
  • Output Buffer Enable Pin
  • Programmable Charge Pump Current
  • Hardware and Software Power Down
  • 3-Wire Serial Interface
  • Single Supply: 4.5V to 5.25V Operation
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Description

TRF3761 is a family of high performance, highly integrated frequency synthesizers, optimized for high performance applications. The TRF3761 includes a low-noise, voltage-controlled oscillator (VCO) and an integer-N PLL.

TRF3761 integrates divide-by 1, 2, or 4 options for a more flexible output frequency range. It is controlled through a 3-wire serial-programming-interface (SPI) interface. For power sensitive applications the TRF3761 can be powered down by the SPI interface or externally via chip_en pin 2.

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Technical documentation

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Type Title Date
* Data sheet TRF3761-x Integer-N PLL with Integrated VCO datasheet (Rev. K) Dec. 31, 2015
Application note TRF3761 QFN Installation Using a Hakko Hot Air Rework Station Apr. 07, 2007
Application note Fractional/Integer-N PLL Basics May 13, 1998

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Software development

GUI FOR EVALUATION MODULE (EVM) Download
SLWC102.ZIP (8813 KB)

Design tools & simulation

CALCULATION TOOL Download
Loop Filter Calculation Tool
LOOP_FILTER-CALC The Loop Calculator tool calculates component values for PLL loop filter design. The tool calculates component values based on system performance specifications provided by the user.
document-generic User guide
Features
  • Supports integer or fractional PLL modes
  • Plots open and closed loop gain and phase margin
  • Plots PLL phase noise
  • Supports user defined component values for gain, phase, and phase noise plots
  • Support for Windows 7 or Windows XP (SP 2 is recommended)
CALCULATION TOOL Download
TRF3761 Loop Filter Calculator
TRF3761CALC TRF3761CALC is a loop filter design tool for the TRF3761 PLL Frequency Synthesizer with integrated VCO.
Features
  • Calculates loop filter circuit component values based on desired output frequency
  • Identifies TRF3761-x device variant selection based on desired output frequency
  • Identifies appropriate device divide-by mode required for desired output frequency
  • Provides additional information regarding parameter (...)
CALCULATION TOOL Download
SLWC085A.ZIP (17 KB)

CAD/CAE symbols

Package Pins Download
VQFN (RHA) 40 View options

Ordering & quality

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  • Qualification summary
  • Ongoing reliability monitoring

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