EURO QUARTZ OCXO - OC18E12A SERIES AT-Cut Crystal - Sine Wave - 12.0 Volts · Frequency Range 10.0MHz to 100.0MHz 20.3 x 20.3 x 10.5mm 5 pin metal, solder-sealed package Supply Voltage 12.0 Volts AT-Cut Crystal True Sinewave Output EFC (Voltage control) as standard OUTLINE & DIMENSIONS DESCRIPTION OC18E12A series oven-controlled crystal oscillators are close tolerance OCXOs with good phase noise performance. SPECIFICATION Crystal Cut: Output Waveform: Supply Voltage: Frequency Range: Initial Calibration Tolerance: Frequency Stability over 0° to +60°C: over -20° to +70°C: over -40° to +85°C: vs. Voltage Change: vs. Ageing: vs. Load Change: Warm-up Time: Voltage Control Control Voltage Centre: Freq. Deviation Range: Control Voltage Range: Transfer Function: Input Impedance: EFC Linearity: Power Dissipation: AT-cut Sine Wave +12.0 VDC ±0.5V 10.0MHz to 100.0MHz ±0.5ppm max. (at VCON 2.5V) ±0.02ppm ±0.05ppm ±0.1ppm <±20ppb for ±5% change ±5.0ppb max per day ±0.5ppm per first year ±3.0ppm over 10 years <±20ppb for ±5% change TEST CIRCUIT 3 minutes max. to within ±0.5ppm of nominal freq. +2.5 Volts (VCON) ±5.0ppm min., ±20ppm max. ref. to 25°C 2.5V ±2.0Volts Positive: Increasing control voltage increases output frequency. 100k minimum ±10% maximum 200mA max. steady state 500mA max. at turn on Output Load: Harmonics: Spurious: Reference Voltage: Envionmental Storage Temperature: Shock: Vibration: PHASE NOISE (at 10MHz) Offset 1Hz 10Hz 100Hz 1kHz 10kHz dBc/Hz -75 -100 -130 -140 -150 +3dBm typ., +8dBm max. into 50W load. -30dBc min. -75dBc min. PART NUMBER FORMAT Example: OC18GE12A-10.000-0.05/-20+70 +4.0±0.3VDC or custom -55° to +125°C 2000g, 0.3ms ½ sine 10 ~2000Hz / 10g OCXO Package: OC18 RoHS Compliance G: RoHS Compliant Blank: Non-compliant E: Output Sine Wave 12: Supply Voltage 12.0Volts A: AT-Cut Crystal Nominal Frequency 10.0MHz Stability in ppm Operating Temperature Range °C Lowest Temperature/Highest Temperature EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE Tel: +44 (0)1460 230000 Fax: +44 (0)1460 230001 Email: [email protected] www.euroquartz.co.uk