Low phase noise Fundamental Quartz Crystal Oscillator IC

Data Sheet


  • Oscillation Frequency (20MHz to 50MHz(Fundamental))
  • Phase noise (
    -103dBc/Hz(Typ.) @10Hz Offset
    -163dBc/Hz(Typ.) @1kHz Offset)
  • RMS Jitter (0.05psec(Typ.) @12kHz to 20MHz)
  • Operating Voltage (1.62V to 3.63V)
  • Operating Current (3.1mA(Typ.) @49.152MHz, CL=15pF)
  • Built In Divider (f0, f0/2 (Factory set))
  • Stand-by Function (( CONT Terminal: L)
    Oscillation Stop and High Impedance FOUT terminal.)
  • 3-State Output Buffer
  • Built-in Variable Pull-up Resistance (
    ( CONT: Pull-up Resistance large at the Stand-by mode.))
  • Oscillation Capacitors Cg and Cd
  • Operation Temperature (-40°C to 125°C)
  • Package Outline (Die / 8-inch wafer)
  • (V=3.3V, f=49.152MHz, Ta=25°C)

General Description

The NJU6222 series is a C-MOS quartz crystal oscillator IC (20MHz to 50MHz) realized very low phase noise. It is consisted of an oscillation amplifier, divider (f0, f0/2), and 3-state output buffer. There are 2-type of pad location for Flip chip and Wire bonding that apply SMD’s 2016-package and more miniature. The NJU6222 in low voltage operation features low phase noise, it is suitable for high quality Hi-Fi sound device, Communication device, and others by battery drive.


  • Low Noise Crystal Oscillator