SD-A2990 Series Description SD-A2990 Series quartz crystal o

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SD-A2990 Series Description SD-A2990 Series quartz crystal o

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Data Sheet 0331A Rev.
SD-A2990 Series
Description
SD-A2990 Series quartz crystal oscillators provide DPECL Fast Edge compatible signals. Systems designers specify space-saving, cost-effective packaged PECL oscillators meet their timing requirements.
Features
Wide frequency range-125.0MHz 312.5MHz User specified tolerance available Space-saving alternative discrete component oscillators High shock resistance, 1000g volt operation Metal electrically connected ground reduce Fast rise fall times <600 High Reliability HALT/HASS qualified crystal oscillator start-up conditions Jitter Wavecrest jitter characterization available Overtone technology High Crystal actively tuned oscillator circuit Power supply decoupling internal internal avoids cascading problems High frequencies proprietary design Gold plated pads RoHS Compliant, Lead Free Construction
Electrical Connection Connection Enable/Disable N.C. /Ground Output /Output
Beloit Street, P.O. 457, Burlington, 53105-0457 U.S.A. Phone 262/763-3591 262/763-2881 Email: nelsales@nelfc.com www.nelfc.com
SD-A2990 Series Continued Differential Positive (DPECL) Fast Edge Operating Conditions Output Characteristics
Electrical Characteristics
Parameter Frequency Duty Cycle Logic Logic 1(2) Rise Fall Time Jitter, RMS(3) Enable Voltage Disable Voltage Frequency Stability Symbol Conditions -125.0MHz VCC-1.29V 45/55% -1.35V -2.28V tr,tf 20-80%VO with load VCC-2V -200 psec -with 2.0V -with dF/F Overall conditions including: -100ppm voltage, calibration, temp., aging, shock, vibration
Data Sheet 0331A Rev.
Typical
312.5MHz 55/45% 1.70V 2.56V psec +200 psec psec -0.8V +100ppm
General Characteristics
Parameter Supply Voltage Supply Current Output current Operating temperature Storage temperature Power Dissipation Solder temperature Load Start-up time Conditions 3.3V±5% 3.135V termination 2.00V below level Output Current -0°C -55°C minutes VCC-2V Thevenin Equivalent, Bias Required -Symbol Typical 3.3V 3.465V ±50.0 70°C 125°C 253°C
Environmental Mechanical Characteristics
Mechanical Shock Thermal Shock Vibration Hermetic Seal MIL-STD-202, Method 213, Condition MIL-STD-833, Method 1011, Condition 0.060" double amplitude 35g's 55Hz 2000 Leak rate less than atm.cc/sec helium
Footnotes: Standard frequency stability (±20,±25,±50ppm others available) VOL, VOH, referenced ground (VEE) with 3.3V Jitter performance frequency dependent. Please contact factory full Wavecrest characterization. jitter bandwidth 12kHz 20MHz. phse shift between falling edge 2.0V rising edge 2.01V.
Creating Part Number A299X FREQ Package Code 5x7mm Tolerance/Performance ±100ppm 0-70°C ±50ppm 0-70°C ±25ppm 0-70°C Customer Specific ±20ppm 0-70°C ±50ppm +85°C ±100ppm +85°C
Input Voltage Code Specification 3.3V 2.5V
Beloit Street, P.O. 457, Burlington, 53105-0457 U.S.A. Phone 262/763-3591 262/763-2881 Email: nelsales@nelfc.com www.nelfc.com
SD-A2990 Series Continued
Data Sheet 0331A Rev.
Reflow Profile
Beloit Street, P.O. 457, Burlington, 53105-0457 U.S.A. Phone 262/763-3591 262/763-2881 Email: nelsales@nelfc.com www.nelfc.com

SD-A2990 Series Description SD-A2990 Series quartz crystal o

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