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

Overview

Introducing the High Precision SMD OCXO 20MHz, designed for applications requiring exceptional frequency stability and low phase noise. This oscillator meets stringent technical specifications, ensuring reliable performance in various environments.

Key Features of High Precision OCXO 20MHz

Exceptional Frequency Stability: Maintains accuracy with temperature variations ≤ ±10 ppb.
Low Phase Noise: Achieves superior phase noise performance, ensuring minimal signal distortion.
Fast Rise and Fall Times: < 6 ns, suitable for high-speed applications.
Wide Operating Temperature Range: Functions efficiently between -40℃ to 85℃.
Low Aging Rate: ≤ ±1 ppb/day, ensuring longevity and reliability.
Compact Size: Dimensions of 14.4 mm x 9.2 mm x 6.5 mm, lightweight at 2.2 g.
Flexible Voltage Control: Tuning voltage range of 0 to 3.3 V for fine frequency adjustments.
Robust Vibration and Impact Resistance: Designed to withstand harsh environmental conditions.

These features make the OCXO 20MHz ideal for precision timing in various applications.

Technical Specification

Product Features	Specification name	Technical indicators	Remarks
Output characteristics	Nominal frequency	20.00MHz
	Output waveform	square wave	load 15pF
	Low level	<0.4V
	High leve	>2.4V
	Rise and fall time	<6ns
	Duty cycle	45%~55%
Frequency stability	Temperature frequency characteristics	≤±10ppb	-40～+85℃, fref=(fmax+fmin)/2
	Voltage frequency characteristics	≤±5ppb	3.3V±5%
	Load frequency characteristics	≤±2ppb	15pF±5%
	Aging rate	≤±lppb/day <±0.1ppm/year	Power-on time>30 days
	Frequency accuracy	≤±0.2ppm	Factory calibration value, +25℃, VC=1.65V
	Frequency repeatability	≤±5ppb	Power 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 characteristics	Starting current	<600mA
	Steady state current	<300mA	@+25℃
	Working voltage	+3.3VDC	Vcc±5%
	Power-on characteristics	≤±20ppb	Frequency deviation for 3 minutesafter power-on relative to J hour.
Voltagecontrol voltage (frequency finc-tuning)	Tuning voltage range	0～3.3V	center voltage+1.65V
	FM range	>±2ppm
	FM slope	positive polarity
	Linearity	<10%
	Input impedance	≥100KQ
Phase noise		Type	Max
	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℃
Vibration	Test 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.
Impact	50g;IIms,half sine wave (3 directions,X,Y and Z), IEC 68-2-27 TestEa/Severity 50A
Size	14.49,26.5mm
Weight	2.2g