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 2002/95/EC 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 Power Consumption Load Document No. Model 125 5MHz, 10 MHz during warm up - 4 6 W steady state @ 25°C - 2 3 W 45 50 55 ohms Output to Ground Page 1 - 4 ٠ ٠ ٠ CTS Electronic Components, Inc. ٠ 171 Covington Drive ٠ Bloomingdale, IL 60108 ٠ U.S.A. ٠ ٠ ٠ ٠ ٠ ٠ Phone +1-630-924-3500 ٠ www.ctscorp.com ٠ Toll Free 800-757-6686 ٠ ٠ ٠ X2 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 Phase Noise (Typical for 10 MHz) 1 Hz - -85 - dBc/Hz 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 20 - - years - - ±10 % Spurious Electronic Frequency Control Input Impedance Control Voltage Range Tuning Range Tuning Coverage Linearity Output Parameters Sine Wave Output Waveform Amplitude 2 5 8 dBm Harmonics - -35 -25 dBc Sub-harmonics - -35 -25 dBc Document No. Model 125 Sine Wave into 50 Ohm Page 2 - 4 ٠ ٠ ٠ CTS Electronic Components, Inc. ٠ 171 Covington Drive ٠ Bloomingdale, IL 60108 ٠ U.S.A. ٠ ٠ ٠ ٠ ٠ ٠ Phone +1-630-924-3500 ٠ www.ctscorp.com ٠ Toll Free 800-757-6686 ٠ ٠ ٠ X2 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 2002/95/EC Document No. Model 125 Page 3 - 4 ٠ ٠ ٠ CTS Electronic Components, Inc. ٠ 171 Covington Drive ٠ Bloomingdale, IL 60108 ٠ U.S.A. ٠ ٠ ٠ ٠ ٠ ٠ Phone +1-630-924-3500 ٠ www.ctscorp.com ٠ Toll Free 800-757-6686 ٠ ٠ ٠ X2 Model 125 SSOCXO Compensated OCXO MECHANICAL SPECIFICATIONS Document No. Model 125 Page 4 - 4 ٠ ٠ ٠ CTS Electronic Components, Inc. ٠ 171 Covington Drive ٠ Bloomingdale, IL 60108 ٠ U.S.A. ٠ ٠ ٠ ٠ ٠ ٠ Phone +1-630-924-3500 ٠ www.ctscorp.com ٠ Toll Free 800-757-6686 ٠ ٠ ٠ X2