Part LMX2485E
Description High Performance Delta-Sigma Low Power Dual PLLatinum Frequency Synthesizers
Manufacturer National Semiconductor
Size 890.62 KB
National Semiconductor
LMX2485E

Overview

The LMX2485 is a low power, high performance delta-sigma fractional-N PLL with an auxiliary integer-N PLL. The device is fabricated using National Semiconductor’s advanced process.

  • RF PLL: 8/9/12/13 or 16/17/20/21
  • IF PLL: 8/9 or 16/17 Advanced Delta Sigma Fractional Compensation
  • 12 bit or 22 bit selectable fractional modulus
  • Up to 4th order programmable delta-sigma modulator Features for Improved Lock Times and Programming
  • Fastlock / Cycle slip reduction
  • Integrated time-out