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  • SMD3225 VCTCXO 16.8MHz ±0.5ppm High-Precision Temperature Compensated Crystal Oscillator
SMD3225 VCTCXO 16.8MHz ±0.5ppm High-Precision Temperature Compensated Crystal Oscillator

SMD3225 VCTCXO 16.8MHz ±0.5ppm High-Precision Temperature Compensated Crystal Oscillator

SMD3225 VCTCXO 16.8MHz
Nominal Frequency: 16.8MHz
Nominal Frequency Tolerance: ±2ppm
Frequency stabiity over temperature: ±0.5ppm
Temperature range: -30~85℃
Supply voltage: 3.3V


Electrical Specifications



ParameterMin.Typ.Max.UnitsRemarks
Frequency CharacteristicsNominal Frequency16.800000 MHz
Nominal Frequency
Tolerance
-2.0 
+2.0 ppmFrequencyat 25℃,1 hour after 2 times
reflow
Frequency stabiity
over temperature
-0.5 
+0.5 ppmReferenced to the midpoint between
minimum and maximum frequency value.
Temperature range-30 
+85 The operating temperature range over
which the frequency stability ismeasured
Supply voltage
stability
-0.2 
+0.2 ppmSupply voltage varied ±5%at 25℃
Load sensitivity-0.2 
+0.2 ppm±10%load change
Aging-1.0 
+1.0 ppmfirst year at 25℃
Storage temperature-40 
+85 
Power SupplySupply voltage3.135 3.3 3.465 V
Current

1.5 mAAt maximum supply voltage
Control VoltageControlvoltage range0.5 1.5 2.5 V
Pulling range±5

ppmReferenced to VCONat 1.5V
Vcon input impedance500 

kOhmMeasured between VCON and GND pin
Linearity

10 %
Oscillator OutputOutput waveformClipped sine wave
DC Coupled clipped sine wave
Output voltage level0.8 

Vp-p
Output load10Kohm//10pF

Start time

ms
Phase Noise10Hz offset
-90 
dBc/Hz
100Hz offset
-116 
dBc/Hz
1KHz offset
-136 
dBcHz
10KHz offset
-150 
dBc/Hz
100KHz offset
-152 
dBc/Hz


Test Circuit

20.png


Output Waveform

21.png


IR Reflow

22.png


Diemnsion

1726022126272184.png


PIN FUNCTION



 NONameTypeFunction and Remarks
 1 VCInputVoltage contol
 2 GNDPower-GND pin
 3 OUTOutputFrequency output
 4 VDDPower+Power Supply,Vop pin





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