OCXO

An oven-controlled crystal oscillator (OCXO) utilizes an internal oven to keep its quartz crystal resonator at an ideal temperature. This results in the greatest possible stability and accuracy among all quartz-based oscillators, allowing certain OCXOs to meet the requirements for the Stratum 3E network time protocol standard. Keeping the quartz crystal sealed within the internal oven, OCXOs can also achieve lower phase noise as thermal stability will contribute to fewer crystal phase shifts that would otherwise degrade signal quality.

Oven-controlled crystal oscillators from CTS come with a wealth of options in terms of frequency range and stability, phase noise floor, temperature range, supply power, mounting configuration and size.

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Three CTS OCXO products on white background

Low Phase Noise (-170 dBc/Hz Floor Available)
Ultra Low Power (<150 mW)
High Frequency, up to 300 MHz
Miniature 9 x 14 mm, DIL 14 Package Size (Reaching 10 ppb pk-pk over Industrial Temp Range)
High Stability – to 0.2 ppb over -40/+85°C
1 μsec Typical for 8 hr Holdover
Low G-Sensitivity (0.3 ppb/G for Select Products)

Communications Networks (5G, 1588 Backhaul and Fronthaul, Ethernet Link)
Low Noise Military Communications/Radar
Datalink for Airborne Broadband Systems
Stable Reference for Ocean Bottom Node Mapping
Test and Measurement
Stratum 3 and 3E Holdover and Wander Generation
Microwave Communications
Mobile and Battery Applications
Stratum 2 Timing
Wireless Base Stations (UMTS, GSM, CDMA, LTE)
Timing over Packet

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Causes of Crystal Aging in Oscillators - CTS Whitepaper

Phase Noise to Jitter Calculator

LC Filter Design Tool

Phase Noise Under Vibrations Calculator

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Series	Output	Frequency Range (MHz)	Frequency Stability (ppb)	Package (mm)	Voltage (V)	Temperature Range (C)	Data Sheet	ROHS	Reach Statement
1188	HCMOSSine	10 - 40	±100±50±30±20±1010 pk-pk	25x25x13 Thru-Hole	3.3V5.0V12.0V	-40°–85°-30°–70°-20°–70°0°–50°0°–70°	Data Sheet	ROHS	Reach Statement
1190100	HCMOS	20	10 pk-pk	25x22x12.7 SMD	3.3V5.0V	-40°–85°-20°–70°	Data Sheet	ROHS	Reach Statement
1190200	HCMOS	12.8	10 pk-pk	25x22x12.7 SMD	3.3V5.0V	-40°–85°-20°–70°	Data Sheet	ROHS	Reach Statement
1190300	HCMOS	24.576	10 pk-pk	25x22x12.7 SMD	3.3V5.0V	-40°–85°-20°–70°	Data Sheet	ROHS	Reach Statement
1198	HCMOSSine	10 - 40	±100±50±30±20±1010 pk-pk	25x22x12.7 SMD	3.3V5.0V	-40°–85°-30°–70°-20°–70°-10°–60°0°–50°0°–70°	Data Sheet	ROHS	Reach Statement
1198004	LVCMOS	48	±20	25x22x12.7 SMD	3.3V	-40°–85°	Data Sheet	ROHS	Reach Statement
1228	HCMOSSine	10 - 40	±100±50±30±20±1010 pk-pk	20x20x11 Thru-Hole	3.3V5.0V	-40°–85°-30°–70°-20°–70°-10°–60°0°–50°0°–70°	Data Sheet	ROHS	Reach Statement
137	HCMOS	10 - 26	±250±100±50	20x13x11 SMD20x13x11 Thru-Hole	3.3V5.0V	-40°–85°-20°–70°-10°–60°0°–50°0°–70°	Data Sheet	ROHS	Reach Statement
138	HCMOS	10 - 26	±100±50±20±1010 pk-pk	20x13x11 SMD20x13x11 Thru-Hole	3.3V5.0V	-40°–85°-20°–70°-10°–60°0°–50°0°–70°	Data Sheet	ROHS	Reach Statement
1380100	HCMOS	20	10 pk-pk	20x13x11 SMD20x13x11 Thru-Hole	3.3V5.0V	-40°–85°-20°–70°	Data Sheet	ROHS	Reach Statement
1380200	HCMOS	12.8	10 pk-pk	20x13x11 SMD20x13x11 Thru-Hole	3.3V5.0V	-40°–85°-20°–70°	Data Sheet	ROHS	Reach Statement
1380300	HCMOS	24.576	10 pk-pk	20x13x11 SMD20x13x11 Thru-Hole	3.3V5.0V	-40°–85°-20°–70°	Data Sheet	ROHS	Reach Statement
139	HCMOS	10 - 40	±50±20±1010 pk-pk	20.32x12.70x11 SMD20.32x12.70x9.30 Thru-Hole	3.3V5.0V	-40°–85°-20°–70°0°–50°	Data Sheet	ROHS	Reach Statement
149	HCMOS	10 - 50	±100±50±20±1010 pk-pk	14.9x9.7x7.0 SMD	3.3V5.0V	-40°–85°-20°–70°-10°–60°0°–50°0°–70°	Data Sheet	ROHS	Reach Statement
1499	LVCMOS	10 - 50	±100±50±20±10	14.6x9.6x6.7 SMD	3.3V	-40°–85°-20°–70°0°–70°	Data Sheet	ROHS	Reach Statement
150	HCMOS	10 - 50	±250±200±100	14.9x9.7x7.0 SMD	3.3V5.0V	-40°–85°-20°–70°-10°–60°0°–50°0°–70°	Data Sheet	ROHS	Reach Statement
1500001	HCMOS	20	±100	14.9x9.7x7.0 SMD	3.3V	-40°–85°	Data Sheet	ROHS	Reach Statement
1500002	HCMOS	12.8	±100	14.9x9.7x7.0 SMD	3.3V	-40°–85°	Data Sheet	ROHS	Reach Statement
151	LVCMOS	10 - 50	±100±50±20±10	9.8x7.6x5.65 SMD	3.3V	-40°–85°-20°–70°0°–70°	Data Sheet	ROHS	Reach Statement
152	LVCMOS	10 - 50	±100±50±20±10	7.2x5.2x3.5 SMD	3.3V	-40°–85°-20°–70°0°–70°	Data Sheet	ROHS	Reach Statement
196	HCMOSSine	10 - 38.88	±20±10	36x27x14 Thru-Hole	3.3V5.0V12.0V	-40°–85°-10°–70°	Data Sheet	ROHS	Reach Statement
197	HCMOSSine	10	1 pk-pk0.8 pk-pk0.5 pk-pk0.2 pk-pk	36x27x13 Thru-Hole	5.0V12.0V	-40°–85°-30°–70°-20°–70°-10°–60°0°–50°0°–70°	Data Sheet	ROHS	Reach Statement

OCXO

138

139

1499

151

Resource Type

Product (Family)

Causes of Crystal Aging in Oscillators

CTS-Passive-Components-Frequency-Control-Products-Oven-Controlled-Crystal-Oscillators-OCXO-Series-139-App-Note.pdf

Frequency Control Products - OCXO Brochure

High-Temperature Frequency Control Solutions

Jitter & Phase Noise in Timing References

OCXOs and LPOCXOs for Low-Power Applications

Quartz Oscillator Packaging and Sealing Methods

Vibration-Induced Phase Noise in Quartz Oscillators

What Is an OXCO?

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Frequency Stability

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Temperature Range

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