Download LMX2531 Datasheet PDF
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LMX2531 Description

The LMX2531 is a low-power, high-performance frequency synthesizer system which includes a fully integrated delta-sigma PLL and VCO with fully integrated tank circuit. The third and fourth poles are also integrated and adjustable. Ultra-low noise and high-precision LDOs are integrated for the PLL and VCO, which yield higher supply-noise immunity and more consistent performance.

LMX2531 Key Features

  • 1 Multiple Frequency Options Available
  • See Device Information Table
  • Frequencies From: 553 MHz to 3132 MHz
  • PLL Features
  • Fractional-N Delta-Sigma Modulator Order Programmable up to Fourth Order
  • FastLock/Cycle Slip Reduction with Timeout Counter
  • Partially Integrated, Adjustable Loop Filter
  • Very Low Phase Noise and Spurs
  • VCO Features
  • Integrated Tank Inductor