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LMX2491 - 6.4-GHz Low Noise RF PLL

Description

The LMX2491 device is a low-noise, 6.4-GHz wideband delta-sigma fractional N PLL with ramp and chirp generation.

It consists of a phase frequency detector, programmable charge pump, and high frequency input for the external VCO.

Features

  • 1.
  • 227-dBc/Hz Normalized PLL Noise.
  • 500-MHz to 6.4-GHz Wideband PLL.
  • 3.15-V to 5.25-V Charge Pump PLL Supply.
  • Versatile Ramp / Chirp Generation.
  • 200-MHz Maximum Phase Detector Frequency.
  • FSK / PSK Modulation Pin.
  • Digital Lock Detect.
  • Single 3.3-V Supply Capability 2.

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Datasheet preview – LMX2491

Datasheet Details

Part number LMX2491
Manufacturer Texas Instruments
File Size 2.67 MB
Description 6.4-GHz Low Noise RF PLL
Datasheet download datasheet LMX2491 Datasheet
Additional preview pages of the LMX2491 datasheet.

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Full PDF Text Transcription

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Product Folder Order Now Technical Documents Tools & Software Support & Community LMX2491 SNAS711A – OCTOBER 2016 – REVISED JANUARY 2017 LMX2491 6.4-GHz Low Noise RF PLL With Ramp/Chirp Generation 1 Features •1 –227-dBc/Hz Normalized PLL Noise • 500-MHz to 6.4-GHz Wideband PLL • 3.15-V to 5.25-V Charge Pump PLL Supply • Versatile Ramp / Chirp Generation • 200-MHz Maximum Phase Detector Frequency • FSK / PSK Modulation Pin • Digital Lock Detect • Single 3.3-V Supply Capability 2 Applications • FMCW Radars • Military Radars • Microwave Backhaul • Test and Measurement • Satellite Communications • Wireless Infrastructure • Sampling Clock for High-Speed ADC/DAC 3 Description The LMX2491 device is a low-noise, 6.4-GHz wideband delta-sigma fractional N PLL with ramp and chirp generation.
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