SC-1421

CRYSTAL CLOCK OSCILLATORS CMOS Data Sheet K2151 Rev. E SC-1420 Series Description The SC-1420 Series of quartz crystal oscillators provide enable/disable 3-state CMOS compatible signals for bus connected systems. Supplying Pin 1 of the SC-1420 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–1.0MHz to 80.0MHz • 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 1000g • Low Jitter • No internal PLL avoids cascading PLL problems • Metal lid electrically connects to ground to reduce EMI • Gold plated pads Electrical Connection Pin 1 2 3 4 Connection Enable/Disable Ground Output VDD 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-1420 Series CMOS Continued Data Sheet K2151 Rev. E 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 --------VOL VOH tr,tf ----------------dF/F Conditions ----@ VDD/2 @ 600µA @ 600µA 10-90%VO Overtone Fundamental ------------Overall conditions including: voltage, calibration, temp., 10 year aging, shock, vibration Min 1.0MHz 45/55% ----VDD-0.2V ----------------2.0V -----100ppm Typical --------------------------------------------Max 80.0MHz 55/45% 0.2V ----8.0 ns 5 psec 8 psec 25 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. ----20MHz or greater Less than 20MHz Min 4.75V 0.0 mA 0.0 mA 0°C -55°C --------------------Typical 5.0V ------------------------------------Max 5.25V 40 mA ±16.0 mA 70°C 125°C 210 mW 300°C 15pf 10 ms 2 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 300°C for 10 seconds Leak rate less than 1 x 10-8 atm.cc/sec Footnotes: 1) Standard frequency stability (±20,±25,±50ppm & others available) 2) Jitter performance is frequency dependent. Please contact factory for full characterization. 3) External high frequency power supply decoupling required. Creating a Part Number SC - A142X - FREQ Package Code SC 4 pad 5x7mm SMD Input Voltage Code Specification A 3.3V 5V 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 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