Crystal Oscillator

- 5 -

NH37M28LN

Phase Noise

(at 10 MHz)

Offset

Frequency

dBc/Hz

1 Hz

Typ. –83

10 Hz

Typ. –110

100 Hz

Typ. –135

1 kHz

Typ. –152

10 kHz

Typ. –157

100 kHz

Typ. –160

1604A_NH37M28LN_e

High Precision Oscillator (Twin-OCXO)

for Fixed Communication Equipment

● Base stations for system mobile communications

●Measuring instrument

● Synthesizer

● Exchanger

● High-end router

● Low height and excellent temperature characteristics.

● Supports wide temperature range (–40 to +85 °C)

● Frequency adjustment by digital control method (I2C control).

Model

Item

Measurement condition

NH37M28LN

Nominal Frequency Range (MHz)

10

+5.0 ±5 %

Power Consumption (W)

at start

Typ. 3.0 (Max. 3.5)

when stable (+25 °C)

Max. 1.6

Output Voltage

Symmetry (%)

45 to 55

Load Impedance (pF)

15

Operating Temperature Range (°C)

–40 to +85

Storage Temperature Range (°C)

–40 to +85

Stabilization Time

Stabilization Time (Frequency Stability) within

based on frequency after 60minutes operation.

Max. 5 minutes

Long-term Frequency Stability

Based on frequency after 7 days operation

Frequency/Temperature Characteristics

Frequency/Voltage Coefficient

Frequency Control Range

*1

Frequency Change Polarity

Frequency Change Polarity

Positive

Linearity

Max. 5%

Frequency control

method

Voltage control

Digital control

(I2C control)

Control Range

0 to 5.0V

0x800000

to 0x7FFFFF

Specification Number

NSA3650A

NSA3649A

mm

Pin number is not printed

NSA3649A : SCL, SDA

Max. 37.0

5×Ø0.45±0.15

Min.3.0

5×Ø0.80±0.15

STAND OFF

4POINT

0

7.62

10.16

12.70

#3

#1

#10

#4

25.4±0.3

17.78±0.30

#5

#7

#8

#9

#6

5.08

2.54

#2

Pin connections

#1

#2

#3

#4

#5

#6

DNC(Don't connect)/ SDA(I2C) *

OUTPUT

DNC(Don't connect)

#7

DNC(Don't connect)

#8

DNC(Don't connect)

#9

DNC(Don't connect)

#10

GND

DNC(Don't connect)

Tolerance ±0.2

Please specify the model name, frequency, and specification number

when you order products.

For further questions regarding specifications, please feel free to

contact us.