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

概览

隆重推出高精度 SMD OCXO 20MHz，专为对频率稳定性及相位噪声有极高要求的应用场景而设计。该振荡器符合严苛的技术规范，确保在各类环境下均能提供可靠的性能。

高精度 OCXO 20MHz 的主要特性

技术规格

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