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NSA3640A Datasheet(PDF) 1 Page - NIHON DEMPA KOGYO

Part # NSA3640A
Description  High Precision Oscillator (Twin-OCXO) for Fixed Communication Equipment
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Manufacturer  NDK [NIHON DEMPA KOGYO]
Direct Link  http://www.ndk.com/en
Logo NDK - NIHON DEMPA KOGYO

NSA3640A Datasheet(HTML) 1 Page - NIHON DEMPA KOGYO

  NSA3640A Datasheet HTML 1Page - NIHON DEMPA KOGYO  
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Crystal Oscillator
NH37M28LK
1706C_NH37M28LK_e
High Precision Oscillator (Twin-OCXO)
for Fixed Communication Equipment
●Basestationsforsystemmobilecommunications●High-endrouter●Synthesizer
●Measuringinstrument●Exchanger
■ Main Application
●Excellenttemperaturecharacteristics.
●Supportswidetemperaturerange.
●ExcellentHoldoverstability.
●Frequencyadjustmentbydigitalcontrolmethod(I2Ccontrol).
(Voltagecontorolmethod(Vcont)isalsopossible.)
■ Features
■ Specifications
Phase
Noise
(at10MHz)
OffsetFrequency dBc/Hz OffsetFrequency dBc/Hz
1Hz
Typ.–83
1kHz
Typ.–152
10Hz
Typ.–110
10kHz
Typ.–157
100Hz
Typ.–135
100kHz
Typ.–160
■ *1 Holdover condition
●After7daysoperation.●Ramprate:10°C/1h.●Standbytime:each0.5h.
●Temp.conditionRange:20°CwindowinoperatingTemp.range.
Model
Item
NH37M28LK
NominalFrequencyfnom(MHz)
10
SupplyVoltageVcc(V)
+5
LoadImpedanceCL(pF)
15
OperatingTemperatureRangeTopr(°C)
–40to+85
StorageTemperatureRangeTstr(°C)
–40to+85
PowerConsumptionPCC(W)
atstart
Max.3.5(Typ.3.0)
whenstable,at+25°C
Max.1.2
FrequencyToleranceΔf/fnom
at+25°C,Vcont=Center,beforeshipment
Max.25×10-9
Frequency/TemperatureCharacteristicsΔf/f
atOperatingTemperatureRange
Max.±0.2×10–9
Frequency/VoltageCoefficientΔf/f
VCC±5%
Max.±0.2×10–9
Long-termFrequencyStabilityΔf/f
Basedonfrequencyafter7daysoperation
Max.±0.2×10–9/day
Max.±50×10–9/year
StabilizationTime(min.)
Timewithinspecifiedfrequencytolerance
afterpoweronat+25°C,basedonfrequency
after60minutesoperation.
Max.5/within±10×10–9
HoldOver
Refer*1
Typ.±1.0μs/8h
FrequencyControlMethod
AnalogControl
DigitalControl(I2C)
FrequencyControlRangeΔf/f
Vcont=+2.5V±2.5V
0x800000to0x7FFFFF
Center:0x000000
±0.3to±0.5×10–6
±0.3to±0.5×10–6
FrequencyChangePolarity
Positive
Linearity(%)
Max.±5
OutputVoltage
LVCMOSVOL:Max.+0.4VVOH:Min.+2.4V
Symmetry(%)
at(VOH+VOL)/2
45to55
SpecificationNumber
NSA3641A
NSA3640A
■ Reference Value
■ Dimensions
Weofferdedicatedtoolforevaluationofthisproduct
Pleasespecifythemodelname,frequency,andspecificationnumberwhenyou
orderproducts.
Forfurtherquestionsregardingspecifications,pleasefeelfreetocontactus.
Holdover stability Reference Ambient Temp. profile
Time [h]
0
1
2
3
4
5
6
7
8
40
35
30
25
20
15
10
HoldoverstabilityReferenceAmbientTemp.profile
Time[h]
mm
Max. 37.0
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
5×Ø0.45±0.15
Min.3.0
5×Ø0.80±0.15
Pin connections
#1
#2
#3
#4
#5
#6
Vcont / SCL(I2C) *
DNC(Don't connect)/ SDA(I2C) *
VCC
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
Pin number is not printed
*NSA3641A : Vcont, DNC
NSA3640A : SCL, SDA
37.0max
3.0min
Tolerance±0.2
Itmightbeprintedmanegementcodetothebottom.


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