Model 125 SSOCXO Compensated OCXO APPLICATIONS Telecom Switching Base Stations/Picocells Wireless Communications UMTS Test & Measurement Timing and Synch FEATURES • • • • • • • 1 ppb frequency stability Very low aging 5 MHz or 10 MHz 12V operation Low Phase Noise Electrical Frequency Control Fully compliant to RoHS Directive 2011/65/EU DESCRIPTION CTS Model 125 is a high performance ovenized crystal oscillator. The high quality CTS SC-cut quartz crystal used in this OCXO design offers high stability, low phase noise, and very low aging, making it an ideal frequency or timing reference for Telecommunications and Test & Measurement applications. ELECTRICAL SPECIFICATIONS Parameter Conditions & Remarks Min Typical Max Unit Operating Conditions Standard Frequencies fNOM Operating Temperature Range TOP -10 - 80 °C Supply Voltage 12.0 V 11.4 12.0 12.6 Vdc during warm up - 4 6 W steady state @ 25°C - 2 3 W 45 50 55 ohms Power Consumption Load Model 125 - Rev. A Output to Ground 5MHz, 10 MHz www.ctscorp.com Page 1 of 4 ©2015 CTS® Corporation. Information/product(s) subject to change. No warranty that product(s) will meet the stated specifications for customer specific applications or test equipment. Visit www.ctscorp.com for list of applicable patent(s), more information, or to request a quote. Model 125 SSOCXO Compensated OCXO Parameter Conditions & Remarks Min Typical Max Unit Initial Calibration ∆f/fNOM; TA=25°C; at time of shipment @ Vc = 2.5V - - ±100 ppb vs Temperature TA= -10° to 80°C - 0.5 1 ppb pk-pk vs Supply Voltage ± 5% - - ± 0.1 ppb vs Load ± 10% - - ± 0.2 ppb at time of shipment - 0.05 ± 0.1 ppb/day first year - - ± 30 ppb/year ± 300 ppb/20 yrs Frequency Stability Aging, after 30 days operation 20 years, total Short Term Stability Allan Deviation Warm-Up Time In Still Air @ 1 sec tau - - 0.01 ppb In Still Air @ 10 sec tau - - 0.01 ppb TA=25°C; to within 10 ppb of freq. @ 60 min - 5 10 minutes 1 Hz - -85 - dBc/Hz Phase Noise (Typical for 10 MHz) 10 Hz - -120 - dBc/Hz 100 Hz - -140 - dBc/Hz 1 kHz - -145 - dBc/Hz 10 kHz - -145 - dBc/Hz - - -70 dBc Zi 30 - - kΩ VC ; positive monotonic transfer 0 - 5 Vdc ± 250 - - ppb Spurious Electronic Frequency Control Input Impedance Control Voltage Range Tuning Range Tuning Coverage Linearity 20 - - years - - ±10 % Output Parameters Sine Wave Output Waveform Amplitude 2 5 8 dBm Harmonics - -35 -25 dBc Sub-harmonics - -35 -25 dBc Model 125 - Rev. A Sine Wave into 50 Ohm www.ctscorp.com Page 2 of 4 ©2015 CTS® Corporation. Information/product(s) subject to change. No warranty that product(s) will meet the stated specifications for customer specific applications or test equipment. Visit www.ctscorp.com for list of applicable patent(s), more information, or to request a quote. Model 125 SSOCXO Compensated OCXO Model 125 Part Number Generator: Frequency in MHz Model 125 - ___ . ________ Example: 125-10.0000 Environmental and Mechanical Soldering Hand or Wave Solder only; Maximum Solder Temperature 300°C for 10 Seconds Max. MSL Level 1 50 G’s 11 ms, Halfsine, 3 shock per direction, per IEC 68-2-27 Test Ea / Severity 50A Shock : Sinusoidal Vibration : 0.06” D.A. or 10 G’s Peak, 10 to 500 Hz, per MIL-STD-202F, Method 204D, Test Condition A. Random Vibration : 5.35 G’s RMS. 20 to 2000 Hz, 1 cycle / axis, 10 minutes each axis. Seal : Hermetic Marking Permanency : per MIL-STD-202F, Method 215J. Attachment Method : Through-Hole Lead Finish Matte Tin plated, 100 microinches minimum over 100 microinches minimum Ni underplate Storage Temperature Range: -40°C to +85°C RoHS Lead-free and fully compliant to RoHS Directive 2011/65/EU Model 125 - Rev. A www.ctscorp.com Page 3 of 4 ©2015 CTS® Corporation. Information/product(s) subject to change. No warranty that product(s) will meet the stated specifications for customer specific applications or test equipment. Visit www.ctscorp.com for list of applicable patent(s), more information, or to request a quote. Model 125 SSOCXO Compensated OCXO MECHANICAL SPECIFICATIONS .866 MAX [22.0 mm] Model 125 - Rev. A www.ctscorp.com Page 4 of 4 ©2015 CTS® Corporation. Information/product(s) subject to change. No warranty that product(s) will meet the stated specifications for customer specific applications or test equipment. Visit www.ctscorp.com for list of applicable patent(s), more information, or to request a quote.