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NH37M28LK (for Fixed Communication)

Features

  • Excellent temperature characteristics.
  • Supports wide temperature range.
  • Excellent Holdover stability (Typ. 1μs/8h).
  • Frequency adjustment by digital control method (I2C control).
    (Voltage control method (Vcont) is also possible.)

NH37M28LK_picture

  • RoHS compliant
 

Specifications

Model Name
NH37M28LK
Package Size (L × W × H : mm) 37 × 28 × 16
Nominal Frequency  fnom (MHz) 10
Supply Voltage  VCC (V) +5
Load Impedance  CL (pF) 15
Operating Temperature Range  Topr (°C) -40 to +85
Storage Temperature Range  Tstr (°C) -40 to +85
Power Consumption  PCC (W) at start Max. 3.5 (Typ. 3.0)
when stable, at +25°C Max. 1.2
Frequency Tolerance  Δf/fnom at +25°C, Vcont=Center, before shipment Max. ± 25 × 10-9
Frequency/Temperature Characteristics  Δf/f at Operating Temperature Range Max. ±0.2×10-9
Frequency/Voltage Coefficient  Δf/f VCC ± 5% Max. ± 0.2×10-9
Long-term Frequency Stability  Δf/f Based on frequency after 7 days operation Max. ± 0.2 × 10-9 / day
Max. ± 50 × 10-9 / year
Stabilization Time (min.) Time within specified frequency tolerance after power on at +25°C, based on frequency after 60minutes operation. Max. 5 / within ± 10 × 10-9
Holdover After 7days operation,
Ramp rate : 10°C/1h.
Temp. condition Range : 20°C window.		 Typ. ± 1.0 μs / 8h
Frequency Control Method Analog Control Digital Control (I2C)
Frequency Pulling Range  Δf/f Vcont = +2.5 V ± 2.5 V 0x800000 to 0x7FFFFF
Center : 0x000000
± 0.3 to ± 0.5 × 10-6 ± 0.3 to ± 0.5 × 10-6
Frequency Change Polarity Positive
Linearity (%) Max. ± 5
Output Voltage LVCMOS
VOL : Max. +0.4 V
VOH : Min. +2.4 V
Symmetry (%) at (VOH + VOL) / 2 45 to 55
Specification Number NSA3641A NSA3640A

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Please specify the model name, frequency, and specification number when you order products.
For further questions regarding specifications, please feel free to contact us.

Dimensions

NH37M28LK Dimensions

 

 

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