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LMX2470 Datasheet 2.6 Ghz Delta-sigma Fractional-n Pll

Manufacturer: Texas Instruments

Overview: LMX2470 www.ti.com SNAS195B – MARCH 2003 – REVISED MARCH 2013 LMX2470 2.

General Description

The LMX2470 is a low power, high performance delta-sigma fractional-N PLL with an auxiliary integerN PLL.

The device is fabricated using TI’s advanced BiCMOS process.

With delta-sigma architecture, fractional spur compensation is achieved with noise shaping capability of the delta-sigma modulator and the inherent low pass filtering of the PLL loop filter.

Key Features

  • 1.
  • 2 Low In-Band Phase Noise and Low Fractional Spurs.
  • 12 Bit or 22 Bit Selectable Fractional Modulus.
  • Up to 4th Order Programmable Delta-Sigma Modulator.
  • Enhanced Anti-Cycle Slip Fastlock Circuitry.
  • Fastlock.
  • Cycle Slip Reduction.
  • Integrated Timeout Counters.
  • Digital Lock Detect Output.
  • Prescalers Allow Wide Range of N Values.
  • RF PLL: 16/17/20/21.
  • IF PLL: 8/9 or 16/17.
  • Crystal Reference Fr.

Similar Datasheet

Brand Logo Part Number Description Manufacturer
National Semiconductor Logo LMX2470 2.6 GHz Delta-Sigma Fractional-N PLL National Semiconductor

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