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MAX2880 Datasheet Fractional/Integer-N PLL

Manufacturer: Maxim Integrated (now Analog Devices)

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General Description

The MAX2880 is a high-performance phase-locked loop (PLL) capable of operating in both integer-N and fractional-N modes.

Combined with an external reference oscillator, loop filter, and VCO, the device forms an ultralow noise and low-spur frequency synthesizer capable of accepting RF input frequencies of up to 12.4GHz.

The MAX2880 consists of a high-frequency and lownoise-phase frequency detector (PFD), precision charge pump, 10-bit programmable reference counter, 16-bit integer N counter, and 12-bit variable modulus fractional modulator.

Overview

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MAX2880 EVALUATION KIT AVAILABLE 250MHz to 12.

Key Features

  • Integer and Fractional-N Modes.
  • 250MHz to 12.4GHz Broadband RF Input.
  • Normalized In-Band Noise Floor.
  • -229dBc/Hz in Integer Mode.
  • -227dBc/Hz in Fractional Mode.
  • -10dBm to +5dBm Wide Input Sensitivity.
  • Low-Noise Phase Frequency Detector.
  • 125MHz in Fractional Mode.
  • 140MHz in Integer Mode.
  • Reference Frequency Up to 210MHz.
  • Operates from +2.8V to +3.6V Supply.
  • Cycle Slip Reduction.

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