SJ-A2872-FREQ

CRYSTAL CLOCK OSCILLATORS Differential Positive ECL (DPECL) Data Sheet 9938A Rev. L SJ-A2870 Series Description The SJ-A2870 Series of quartz crystal oscillators provide MECL 10K and 10KH series compatible signals in a ceramic SMD package. Systems designers may now specify space-saving, cost-effective packaged PECL oscillators to meet their timing requirements. Features • Wide frequency range–18.0MHz to 250.0MHz • User specified tolerance available • Will withstand vapor phase temperatures of 253°C for 4 minutes maximum • Space-saving alternative to discrete component oscillators • High shock resistance, to 3000g • 3.3 volt operation • Metal lid electrically connected to ground to reduce EMI • MECL 10K and 10KH series compatible output on Pin 3, complement on Pin 1 Electrical Connection Pin 1 2 3 4 Connection Output Complement VEE /Ground Output VCC • Low Jitter - Wavecrest jitter characterization available • 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 • Gold plated leads - Solder dipped leads available upon request 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 SJ-A2870 Series Continued Differential Positive ECL (DPECL) Operating Conditions and Output Characteristics Electrical Characteristics Parameter Frequency Duty Cycle Logic 0 (2) Logic 1(2) Rise & Fall Time Tpd (4) Jitter, RMS(3) Frequency Stability (1) Symbol Conditions Min --------18.0MHz 45/55% ----@ VCC-1.29V VOL ----1.35V VOH ----2.28V tr,tf 20-80%VO with 50 ohm load to VCC-2V -------------0.5 ns ------------dF/F Overall conditions including: -100ppm voltage, calibration, temp., 10 yr aging, shock, vibration Data Sheet 9938A Rev. L Typical ----------------1.0 ns ------------- Max 250.0MHz 55/45% 1.70V 2.56V 1.5 ns +0.5 ns 3 psec +100ppm General Characteristics Parameter Supply Voltage Supply Current Output current Operating temperature Storage temperature Power Dissipation Lead temperature Load Start-up time Conditions Min ----3.15V 50 ohm termination 0.0 mA To 2.00V below VCC IO Low level Output Current 0.0 mA TA -----0°C -----55°C TS PD --------TL Soldering, 10 sec. ----50 Ohm to VCC-2V or Thevenin Equivalent, Bias Required tS --------Symbol VCC ICC Typical 3.3V ------------------------2 ms Max 3.45V 80 mA ±50.0 mA 70°C 125°C 276 mW 300°C 10 ms Environmental and Mechanical Characteristics Mechanical Shock Thermal Shock Vibration Soldering Condition Hermetic Seal ESD Sensitivity 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 300°C for 10 seconds Leak rate less than 1 x 10 -8 atm.cc/sec of helium Human Body Model per ON Semiconductor 10kH series ECL: 500V min. Footnotes: 1) Standard frequency stability (±20,±25,±50ppm & others available) 2) VOL, VOH, referenced to ground (VEE) with VCC = 3.3V 3) Jitter performance is frequency dependent. Please contact factory for full Wavecrest characterization. 4) Tpd is phase shift between the falling edge of pin 3 at VCC-1.29V and rising edge of pin 1 at VCC-1.29V. Creating a Part Number SJ - A287X - FREQ Package Code SJ 4 J Lead SMD Tolerance/Performance 0 ±100ppm 0-70°C 1 ±50ppm 0-70°C 7 ±25ppm 0-70°C 9 Customer Specific A ±20ppm 0-70°C B ±50ppm -40 to +85°C C ±100ppm -40 to +85°C Input Voltage Code Specification A 3.3V 5V 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