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LMX2581SQ/NOPB AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

LMX2581SQ/NOPB product

LMX2581SQ/NOPB

Integrated Circuits (ICs)

fractional-N PLLintegrated VCORF synthesizerdual differential outputWQFN-323.3 V

LMX2581SQ/NOPB is a 3.3 V wideband fractional-N frequency synthesizer with an integrated 1.88 GHz to 3.76 GHz VCO, programmable output division, and dual differential RF outputs.

Best for

  • Wideband RF frequency generation
  • Clock generation with low integrated jitter targets
  • Wireless infrastructure and test equipment

Avoid if

  • A fully self-contained oscillator without an external loop filter is required
  • The required VCO frequency is outside 1880 MHz to 3760 MHz
  • A supply outside the 3.15 V to 3.45 V operating range is the only available rail

Check before use

  • Reference input frequency and signal integrity
  • PLL loop-filter design and Vtune capacitance
  • Fractional spur requirements
  • RF output pull-up and termination network
  • Thermal-pad grounding and local supply bypassing

Key specifications

Output frequency
50 MHz to 3760 MHz
Integrated VCO
1880 MHz to 3760 MHz
Reference input
5 MHz to 900 MHz
Supply voltage
3.15 V to 3.45 V
Package
32-pin WQFN, 5.00 mm × 5.00 mm

Compliance & Environment

RoHS
ROHS3 Compliant
REACH
-
MSL
MSL 3, 260 °C
ECCN
-
HTSUS
-

Application

Wireless infrastructureTest and measurementClock generation

Datasheet

Texas-Instruments-company-64.pdf

800 KB

Datasheet AI

CAD Models

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Where to Buy

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Alternative components

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Design and risk insights

Questions & answers

LMX2581SQ/NOPB is a Texas Instruments wideband frequency synthesizer integrating a fractional-N or integer-N PLL, a multi-core VCO, programmable output divider, charge pump, and two differential RF output buffers.