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| CRYSTAL CLOCK OSCILLATORS LVCMOS Data Sheet 0007A Rev. K SC-A1440 Series Description The SC-A1440 Series of quartz crystal oscillators provide enable/disable 3-state LVCMOS compatible signals for bus connected systems. Supplying Pin 1 of the SC-A1440 units with a logic "1" or open enables its Pin 3 output. In the disable mode, Pin 3 presents a high impedance to the load. Features * Wide frequency range-80.0MHz to 180.0MHz * User specified tolerance available * Will withstand vapor phase temperatures of 253C for 4 minutes maximum * Space-saving alternative to discrete component oscillators * 3.3 Volt operation * High shock resistance, to 1000g * Low Jitter - Wavecrest jitter characterization available Electrical Connection Pin 1 2 3 4 Connection Enable/Disable Ground Output VDD * High Reliability - NEL HALT/HASS qualified for crystal oscillator start-up conditions * High Q Crystal actively tuned oscillator circuit * Power supply decoupling internal * No internal PLL avoids cascading PLL problems * High frequencies due to proprietary design * Metal lid electrically connected to ground to reduce EMI * Gold plated pads 357 Beloit Street, P.O. Box 457, Burlington, WI 53105-0457 U.S.A. Phone 262/763-3591 FAX 262/763-2881 Email: nelsales@nelfc.com www.nelfc.com CRYSTAL CLOCK OSCILLATORS SC-A1440 Series LVCMOS Continued Data Sheet 0007A Rev. K Operating Conditions and Output Characteristics Electrical Characteristics Parameter Frequency Duty Cycle Logic 0 Logic 1 Rise & Fall Time Jitter, RMS(2) Tpz Enable Voltage Disable Voltage Frequency Stability (1) Symbol Conditions ------------@ VDD/2 VOL @ 600A @ 600A VOH tr,tf 10-90%VO ----Overtone ------------------------dF/F Overall conditions including: voltage, calibration, temp., 10 yr aging, shock, vibration Min 80.0MHz 45/55% ----VDD-0.2V ------------2.0V -----100ppm Typical --------0.1V VDD-0.1V 1.0 ns --------------------Max 180.0MHz 55/45% 0.2V ----2.0 ns 3 psec 100 ns ----0.8V +100ppm General Characteristics Parameter Supply Voltage (3) Supply Current Output current Operating temperature Storage temperature Power Dissipation Lead temperature Load Start-up Time Symbol VDD IDD IO TA TS PD TL ----ts Conditions ----No Load Low level Output Current -------------Soldering, 10 sec. --------Min 3.00V 0.0 mA 0.0 mA 0C -55C ----------------Typical 3.3V 40 mA ----------------------------Max 3.60V 60 mA 25.0 mA 70C 125C 216 mW 300C 15pf 10 ms Environmental and Mechanical Characteristics Mechanical Shock Thermal Shock Vibration Soldering Condition Hermetic Seal Per MIL-STD-202, Method 213, Condition E Per MIL-STD-833, Method 1011, Condition A 0.060" double amplitude 10 Hz to 55 Hz, 35g's 55Hz to 2000 Hz 300C for 10 seconds Leak rate less than 1 x 10-8 atm.cc/sec of helium Footnotes: 1) Standard frequency stability (20,25,50ppm & others available) 2) Jitter performance is frequency dependent. Please contact factory for full Wavecrest characterization. 3) Internal high frequency power source decoupling. Test Load: Creating a Part Number SC - A144X - FREQ Package Code SC 4 pad 5x7mm SMD Input Voltage Code Specification A 3.3V 5V Tolerance/Performance 0 100ppm 0-70C 1 50ppm 0-70C 7 25ppm 0-70C 9 Customer Specific A 20ppm 0-70C B 50ppm -40 to +85C C 100ppm -40 to +85C 357 Beloit Street, P.O. Box 457, Burlington, WI 53105-0457 U.S.A. Phone 262/763-3591 FAX 262/763-2881 Email: nelsales@nelfc.com www.nelfc.com |
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