NJU6221 Series
1.8V Operating Voltage Fundamental Quartz Crystal Oscillator IC with Input Tolerant Function

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  • Description

    The NJU6221 series is a C-MOS quartz crystal oscillator IC realized excellent frequency stability for fundamental (up to 60MHz) oscillation, and consists of an oscillation amplifier, a 6-stage divider, a 3-state output buffer, a built-in LDO and a input tolerant circuit. The operating voltage is from 1.62V to 3.63V, and the LDO holds down the characteristic change of the oscillation amplifier for operating voltage variation, and has been stabilized oscillation frequency. (±1ppm@VDD±10%) The 6-stage divider generates only one frequency selected at the factory shipment of f0, f0/2, f0/4, f0/8, f0/16, f0/32 and f0/64 internal circuits is output. The 3-state output buffer is C-MOS compatible. The input tolerant circuit ensures that 0 to 3.63 V can be applied to CONT terminal without regard to the supply voltage. The oscillation stopping current is very low stand-by mode, therefore, it is suitable for the portable items of the communication equipment and the like.

  • Spec
    Supply Voltage 1.62V to 3.63V
    Operating Current 2mA(typ.) @3.3V
    Frequency Range Up to 60MHz
    Divider to f0/64
    Structure CMOS Technology
    Wide Operating Temperature -40℃ to +85℃
    Junction Temp. +150℃
    Package Thin-Chip
    Frequency Stability ±1ppm@VDD±10%
    Input Tolerant Circuit 0 to 3.63V@CONT Term.
    Low Operating Current 2mA typ.@60MHz/3.3V
    Note 6-Stage Divider (Maximum Divider f0/64)
    Built-in LDO
    Oscillation Stop and Output Stand-by Function
    3-State Output Buffer
    Variable Pull-up Resistance on-Die (CONT: Pull-up Resistance large at the Stand-by mode.)
    Oscillation Capacitors Cg and Cg on-Die
  • Technical
  • Quality &
    • Refer to the datasheets for the details on the product.
    • The package file or the datasheet includes package dimensions, taping specifications, taping reels dimensions, power dissipations, and recommended land pattern.

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Functional Description

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