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LMX2581E Datasheet Wideband Frequency Synthesizer

Manufacturer: Texas Instruments

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General Description

The LMX2581E is a low-noise wideband frequency synthesizer that integrates a delta-sigma fractional N PLL, multiple core VCO, programmable output divider, and two differential output buffers.

The VCO frequency range is from 1880 to 3800 MHz and can be sent directly to the output buffers or divided down by even values from 2 to 38.

Each buffer is capable of output power from –3 to +12 dBm at 2700 MHz.

Overview

Product Folder Sample & Buy Technical Documents Tools & Software Support & Community LMX2581E SNAS665 – MAY 2015 LMX2581E Wideband Frequency Synthesizer with Integrated VCO.

Key Features

  • 1 Output Frequency from 50 to 3800 MHz.
  • Input Clock Frequency up to 900 MHz.
  • Phase Detector Frequency up to 200 MHz.
  • Supports Fractional and Integer Modes.
  • 229 dBc/Hz Normalized PLL Phase Noise.
  • 120.8 dBc/Hz Normalized PLL 1/f Noise.
  • 137 dBc/Hz VCO Phase Noise at 1 MHz offset for a 2.5 GHz Carrier.
  • 100 fs RMS Jitter in Integer Mode.
  • Programmable Fractional Modulator Order.
  • Program.

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