OCXO (Oven Controlled Crystal Oscillators) OC14E12A, OC14E12GA (RoHS version) Series +12.0 V Sine Wave MERCURY Since 1973 y Full size 4 pin DIP full metal package y+12.0 V D.C supply Voltage y 50 ohm load Sine wave output y AT-cut crystal y Voltage control (Electronic Frequency Tuning) on pin 1 General Specifications ( 10 MHz at+25°C, at +12.0 V Vcc and +2.5 V Vcon) Operating Temperature Range (custom spec. on request) Power Output Sine wave. Wave form code is “E” 10 MHz ~40.0 MHz AT-cut. Use “A” for crystal code. +12.0 V ±0.5 V (voltage code is “12”) ±0.5 ppm max. at the time of shipment; Vcon=+2.5V Operating 0°C to +60°C -20°C to +70°C Temperature Best Stability ±0.05 ppm ±0.1 ppm Available Typical Stability ±0.2 ppm ±0.3 ppm -40°C to +85°C ±0.2 ppm ±0.5 ppm Aging < ±0.7 ppm first year. < ±4.0 ppm over 10 years. Short Term Stability <5 E -10 (0.1 sec to 30 sec ); typical 5 E -11 at 1 sec. Supply Voltage ±0.5 Variation < ±0.1 ppm Load ±5% variation < ±0.01 ppm Warm-up time (at +25°C) 3 minutes max. Within ±0.5 ppm of its reference frequency. Voltage Control on pin 1 (EFC) (Electronics Frequency Tuning) Frequency Stability vs Output Wave Form Frequency Range Type of Crystal Cut Used Supply Voltage (Vcc) Initial Calibration Tolerance Frequency Deviation Range ±4 ppm min. Referenced to fo at +25°C. Control Voltage Range 0.0 V to 5.0 V Transfer Function Positive: Increasing control voltage increases output frequency. Input Impedance 47 K ohms min. EFC Linearity ±10% max. Power Dissipation (at +25°C) 1 W max. at steady-state; 2 W max. at turn-on. Output Level 3 dBm typical with 50Ω load Harmonic -10 dBc min. Spurious -70 dBc min. Offset 10 MHz at static condition Storage Temperature 1 Hz 10 Hz 100 Hz 1 KHz 10 KHz -70 dBc -100 dBc -130 dBc -140 dBc -145 dBc Shock 2000 G’s, 0.3 ms ½ sine Vibration 10 to 2000 Hz / 10 G’s Phase Noise -65°C to +125°C MERCURY www.mercury-crystal.com Taiwan: TEL (886)-2-2406-2779, FAX (886)-2-2496-0769, e-mail: [email protected] U.S.A.: TEL (1)-909-466-0427, FAX (1)-909-466-0762, e-mail: [email protected] MERCURY Page 1 of 2 Date: Aug 20, 2006 Rev. 1 OCXO (Oven Controlled Crystal Oscillators) OC14E12A, OC14E12GA (RoHS version) Series +12.0 V Sine Wave OC14E12A Test Circuit: MERCURY Since 1973 A + - Vcc + V - 0.1uF 14 8 1 7 + - 50 ohm coaxial Oscilloscope Vcon Frequency counter OC14E12A Package Dimensions and Pin Connections: Pin 1: Voltage Control (EFC) Pin 7: Ground / Case Pin 8: Output Pin 14: Supply Voltage unit mm [inches] Square corner is pin No. 1 Part Number Format and Example: Example: OC14E12GA-10.000-0.1/-20+70 OC 14 E 12 G A — 10.000 — 0.1 ⁄ slash dash u n o p q r s dash t n: “OC” Product Prefix for OCXO o: Package type. “14” for 4 pin DIP. p: Output wave form code. “E” for 50 ohm load Sine wave. q: Supply voltage code. “12” for +12.0V; r: “G” for RoHS compliant equivalent,” ”(blank) for non-RoHS part. s: Crystal type. “A” for AT-cut crystal; t: Frequency in MHz; u: Frequency stability in ppm; v: Operating temperature range: -20°C to +70°C in this case. MERCURY Page 2 of 2 Date: Aug 20, 2006 -20+70 v Rev.1