20.000 MHz Miniature SMD VC-OCXO (9.7 × 7.5 × 4.0 mm)

Frequency: 20MHz
Supply Voltage: 3.3V
Ambient: ±30ppb@-40~85℃
Dimension: 9.7 × 7.5 × 4.0 mm

High-stability 20MHz miniature SMD VC-OCXO (9.7x7.5mm) featuring ±30ppb stability, ultra-low phase noise, 1-minute fast warm-up, and 3.3V low power consumption.

Features:

• Compact SMD Package: 9.7 × 7.5 × 4.0 mm

• High Stability: ±30 ppb (-40°C to +85°C)

• Ultra-Low Phase Noise: -165 dBc/Hz floor

• Fast Warm-Up: ≤ 1.0 minute

• Low Power: 150 mA steady state (0.5 W) @ 3.3V

• Output & Tuning: 3.3V LVCMOS, VC ≥ ±2.0 ppm

Applications:

• 5G / 4G Small Cells & Base Stations

• GNSS Timing & Holdover Modules

• Network Synchronization (IEEE 1588 / SyncE)

• Test & Measurement Instruments

• Radar & Microwave Communications

Specifications

Parameter			Min.	Type	Max.	unit	Test Condition
Power consumption	Voltage Supply		3.135	3.3	3.465	V
	Current	Start-up Current			450	mA	During warm up
	Current	Operating Current			150	mA	At steady state
Output	Nominal Frequency		20.000			MHz
	Waveform		LVCMOS			—--
	Duty Cycle		45		55	%
	Output Level(VOL)				0.4	V
	Output Level(VOH)		2.4			V
	Rise Time/ Fall				5.0	ns
	Load			15		pF
Frequency Stability	Initial Frequency Accuracy		-0.3		+0.3	ppm	VC=1.65V, @25℃, after 15mins power on refer to nominal frequency.
	Aging	Daily	-2.0		+2.0	ppb	Aging after 30 days operation
		Yearly	-300		+300	ppb
		Ten Years	-1.2		+1.2	ppm
	Temperature characteristics		-30		+30	ppb	-40℃～+85℃，ref to (Fmax+Fmin)/2
	Power Characteristics		-5.0		+5.0	ppb	Vs±5%
	Load Characteristics		-5.0		+5.0	ppb	Load ± 5%
	Warm-up time				1.0	min	@25℃,Within ±100 ppb of final frequency refer to that on 1 hour
	Short Term Stability				0.1	ppb/s	After power on 1hour @25℃ , Allan variance, in still air
	Phase Noise	@100Hz			-135	dBc/Hz
		@1KHz			-155	dBc/Hz
		@10KHz			-160	dBc/Hz
		@100KHz			-163	dBc/Hz
		@1MHz			-165	dBc/Hz
Frequency Tuning	Frequency Adjustment Method		Voltage Regulation (Voltage Control)			—--
	Voltage-Controlled Voltage Input (VC)		0～1.65～3.3			V
	Frequency Adjustment Range	VC=3.3V	2.0			ppm
		VC=1.65V	-300		300	ppb
		VC=0V			-2.0	ppm
	Slope		Positive			——-
	Linearity				10	%
	Voltage-Controlled Input Impedance		100			KΩ