10MHz High-Precision Ultra-Low Phase Noise HCMOS OCXO

Nominal Frequency: Stable 10.000 MHz output.
High Stability: Exceptional temperature stability of ±0.5 ppb (-40°C to +85°C) for mission-critical accuracy.
Ultra-Low Phase Noise: Reaches -170 dBc/Hz @ 10kHz offset, ensuring superior signal purity.
Low Aging Rate: Daily aging less than ±0.1 ppb and yearly aging less than ±30 ppb for long-term reliability.
Output Characteristics: HCMOS square wave output, compatible with 15pF loads, with rise/fall times < 5ns.
Voltage Control (VC): Features frequency tuning via voltage input with a pulling range of ±0.3ppm to ±0.7ppm and <10% linearity.
Industrial Grade: Wide operating temperature range from -40°C to +85°C, suitable for harsh environments.
Compact Packaging: Standard 36.2 x 27.2 x 13.5 mm hermetically sealed metal case for excellent EMI shielding.

This high-performance 10MHz Oven Controlled Crystal Oscillator (OCXO) offers exceptional temperature stability of ±0.5ppb and ultra-low phase noise (-170 dBc/Hz @ 10kHz). Designed with a 5V supply and HCMOS output, it serves as an ideal precision frequency reference for telecommunications, test instrumentation, and synchronization systems.

Product Features

Nominal Frequency: Stable 10.000 MHz output.

High Stability: Exceptional temperature stability of ±0.5 ppb (-40°C to +85°C) for mission-critical accuracy.

Ultra-Low Phase Noise: Reaches -170 dBc/Hz @ 10kHz offset, ensuring superior signal purity.

Low Aging Rate: Daily aging less than ±0.1 ppb and yearly aging less than ±30 ppb for long-term reliability.

Output Characteristics: HCMOS square wave output, compatible with 15pF loads, with rise/fall times < 5ns.

Voltage Control (VC): Features frequency tuning via voltage input with a pulling range of ±0.3ppm to ±0.7ppm and <10% linearity.

Industrial Grade: Wide operating temperature range from -40°C to +85°C, suitable for harsh environments.

Compact Packaging: Standard 36.2 x 27.2 x 13.5 mm hermetically sealed metal case for excellent EMI shielding.

Applications

Telecommunications Infrastructure: 4G/5G macro cells, small cells, wireless repeaters, and network synchronization systems.

Test and Measurement Instrumentation: Master clocks for frequency counters, spectrum analyzers, network analyzers, and high-precision signal generators.

Satellite Navigation and Positioning: GPS/GNSS disciplined clocks, BeiDou navigation terminals, and satellite ground stations.

Radar and Defense Electronics: Ideal for pulsed radar systems requiring low phase noise, electronic warfare (EW), and airborne communication equipment.

Precision Time and Frequency Reference: Frequency distribution amplifiers for atomic clocks and laboratory-grade primary frequency standards.

High-End Digital Audio: Mastering-grade Word Clocks for high-end Digital-to-Analog Converters (DACs) and digital audio workstations.

Power System Synchronization: Time synchronization for power grids (PTP/IEEE 1588) and automated power control terminals.

Specification

	Parameter		Min.	Typ.	Max.	Unit	Test Condition
Power consumption	Power Supply			5.0		V	±5%
	Current	Start-up			1200	mA
	Current	Operating			400	mA
Output	Nominal Frequency		10.000			MHz
	Rise/Fall Time				5	ns	HCMOS
	Warm-up Characteristics		-0.02		+0.02	ppm	Frequency deviation at 5 minutes relative to 1 hour after power-on
	High Level		3.6			V
	Low Level				0.3	V
	Load			15		pF	Load ± 5%
Frequency Stability	Frequency Accuracy (Factory Calibration)		-0.1		+0.1	ppm	VC=2.5V, 25℃
	Aging	Daily	-0.1		+0.1	ppb
	Aging	Yearly	-30		+30	ppb
	Temperature characteristics		-0.5		+0.5	ppb	-40～85℃, peak to peak
	Power Characteristics		-0.3		+0.3	ppb	V±5%
	Load Characteristics		-0.3		+0.3	ppb	Load ± 5%
	Holdover		-2.0		+2.0	us	The holdover exceeds 8 hours with temperature variations within 10°C, after 72 hours of steady-state operation.
	Short Term Frequency Stability	0.1s			3	ppt	Allan Deviation (Still air, after >1 hour warm-up)
	Short Term Frequency Stability	1s			5	ppt	Allan Deviation (Still air, after >1 hour warm-up)
	Phase Noise	@1Hz			-105	dBc/Hz
		@10Hz			-135	dBc/Hz
		@100Hz			-154	dBc/Hz
		@1KHz			-165	dBc/Hz
		@10KHz			-170	dBc/Hz
Frequency Tuning	Frequency Adjustment Method		Voltage Regulation (Voltage Control)			—-
	Voltage-Controlled Voltage Input (VC)		0～2.5～5.0			V
	Pulling Range		±0.3		±0.7	ppm
	Slope		Positive			——
	Linearity				10	%
	Voltage-Controlled Input Impedance		100			KΩ
	Reference Voltage Output (Vref)		4.3	4.5	4.7	V
Ambient Temperature	Operating Temperature Range		-40		85	℃
Ambient Temperature	Storage Temperature Range		-55		105	℃