10MHz OCXO Stability ±0.05ppm

Frequency: 10MHz
Supply Voltage: 15V
Temperature characteristics: ±0.05ppm typ.
Aging: Daily ±1ppb
Dimension: 36.1×27.1×12.8mm

Ultra-Low Close-in Phase Noise 10MHz OCXO

High-Precision Oven Controlled Crystal Oscillator | -120dBc/Hz @ 10Hz | 15V Sine Wave

Product Overview

The [XTALOCXO-3627-10MHz series] is a high-stability 10MHz OCXO designed for applications requiring ultimate spectral purity and short-term stability. With a remarkable Allan Deviation of 5.0E-12 and ultra-low close-in phase noise of -120dBc/Hz at 10Hz, it serves as an ideal reference clock for calibration equipment, high-end synthesizers, and satellite ground stations. It operates on a 15V supply and provides a clean +7dBm sine wave output.

Power supply

Parameter	Min	Typ	Max	Unit	Test Conditions
Supply Voltage	14.25	15	15.75	VDC	Vcc ± 5%
Voltage Range	11.75	-	15.75	VDC	Limited voltage
Startup Current	-	-	270	mA	@Vcc, 25℃
Operating Current	-	-	100	mA	@Vcc, 25℃

2. RF output

Parameter	Specification	Unit	Test Conditions
Nominal Frequency	10	MHz	-
Output Waveform	Sine Wave	-	-
Output Power	7.0 ± 2.0	dBm	Load: 50Ω
Harmonics	≤ -30	dBc	Load: 50Ω
Spurious	≤ -70	dBc	Load: 50Ω
Output Load	50	Ω	Tolerance ± 5%

3. Frequency stability

Parameter	Min	Max	Unit	Test Conditions
Initial Accuracy	-0.1	0.1	ppm	VC = 2.0 V, 25°C, 30 min preheating
Temp. Stability	-0.1	0.1	ppm	-40°C to +85°C (Ref. to 25°C)
Daily Aging	-1	1	ppb	Tested after 30 days of continuous power-on
Yearly Aging	-0.2	0.2	ppm
5-Year Aging	-0.5	0.5	ppm	-
Voltage Stability	-10	10	ppb	Vcc variation: ±5%
Load Stability	-10	10	ppb	Load variation: ±5%
Allan Variance	-	5.0×10−125.0×10−12	-	@ t = 1 s, sealed environment, tested using 53100A

4. Phase noise

Test Equipment: E5052B; Environment: Sealed enclosure, room temperature; tested after 1 hour of power-on.
Offset	Typica	Unit
@ 10Hz	-120	dBc/Hz
@ 100Hz	-140	dBc/Hz
@ 1KHz	-155	dBc/Hz
@ 10KHz	-158	dBc/Hz
@ 100KHz	-158	dBc/Hz
@ 1MHz	-158	dBc/Hz

5.Frequency Tuning / VC

Parameter	Specification	Unit	Note
Tuning Method	Voltage Control	-	-
Control Voltage	0 ～ 2.0 ～ 4.0	VDC	Center Voltage: 2.0 V
Tuning Range	≥ ±0.5	ppm	Frequency Deviation Relative to VC = 2.0 V
Slope	Positive	-	Frequency Increases as Voltage Increases
Linearity	≤ 10	%	-
Input Impedance	≥ 100	KΩ	-
Vref Output	4.0 ± 0.2	VDC	Iout ≤ 1mA