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Numerically Controlled Oscillator (NCO)

Precision Linear Frequency Generator

Features

  • 16-bit numeric frequency control*
    • 500 kHz max output
  • 20-bit numeric frequency control*
    • 32 MHz max output
  • 0.0001% step size of source clock input frequency
  • Multiple Clock Sources
  • Operation while in low power SLEEP
  • (2) output modes
    • Fixed 50% duty cycle
    • Pulse Frequency Modulation
  • Useable as a general purpose 20-bit timer/counter
  • True linear frequency control
  • Increased frequency resolution
  • Core independent operation
numerically controlled oscillator diagram