SJ-A2870 Datasheet | NEL

Description The SJ-A2870 Series of quartz crystal oscillators provide MECL 10K and 10KH series patible 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 ponent oscillators - High shock resistance, to 3000g - 3.3 volt operation - Metal lid electrically connected to ground to reduce EMI - MECL 10K and 10KH series patible output on Pin 3, plement on Pin 1 Electrical Connection Pin 1 2 3 4 Connection Output plement 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. .nelfc. 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 ------------d F/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...