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20MHz OCXO – High Precision Oven Controlled Crystal Oscillator, 3.3V

Frequency: 20MHz
Operating Voltage: 3.3V
Tuning Voltage Range: 0~3.3V
Working Temperature: -40 ~85℃
Dimension: 14.4*9.2*6.5mm

Technical Specification

Product FeaturesSpecification nameTechnical indicatorsRemarks
Output characteristicsNominal frequency20.00MHz
Output waveformsquare waveload 15pF
Low level<0.4V
High leve>2.4V
Rise and fall time<6ns
Duty cycle45%~55%
Frequency stabilityTemperature frequency
characteristics
≤±10ppb-40~+85℃,
fref=(fmax+fmin)/2
Voltage frequency
characteristics
≤±5ppb3.3V±5%
Load frequency
characteristics
≤±2ppb15pF±5%
Aging rate≤±lppb/day
<±0.1ppm/year
Power-on time>30 days
Frequency accuracy≤±0.2ppmFactory calibration value,
+25℃,
VC=1.65V
Frequency repeatability≤±5ppbPower on for 12 hours,
power off for 2 hours,and
then Power on for2 hours
before power offand power
on for 2 hours
Frequency deviation after
hours
Power characteristicsStarting current<600mA
Steady state current<300mA@+25℃
Working voltage+3.3VDCVcc±5%
Power-on characteristics≤±20ppbFrequency deviation for 3
minutesafter power-on
relative to J hour.
Voltagecontrol voltage
(frequency finc-tuning)
Tuning voltage range0~3.3Vcenter voltage+1.65V
FM range>±2ppm
FM slopepositive polarity
Linearity<10%
Input impedance≥100KQ
Phase
noise

TypeMax
1Hz-75 dBc/Hz-70 dBc/Hz
10Hz-105 dBc/Hz-100 dBc/Hz
100Hz-140dBc/lz-135 dBc/z

1KHz-160dBc/Hz-155 dBc/Hz
10KHz-169dBc/Hz-164 dBc/Hz
Working environment-40℃-85℃
-55℃-105℃
VibrationTest conditions:Amplitude:0.75mm(5~26HZ);Acceleration:10g;10Hz~500Hz;every 30min Cycle,2 hours per direction(3 directions,X,Y and Z),IEC 68-2-06 Test Fc.
Impact50g;IIms,half sine wave (3 directions,X,Y and Z),
IEC 68-2-27 TestEa/Severity 50A
Size14.4*9,2*6.5mm
Weight2.2g


Dimension

ocxo20mhz

                                                                          High Precision OCXO 25MHZ


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