The HS-A370 Series of quartz crystal oscillators are resistance welded in an all metal package, offering RFI shielding, and are designed to survive standard wave soldering operations without damage. Insulated standoffs to enhance board cleaning are standard. Low voltage operation (3.3V).

Wide frequency to 70.0MHz 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, 3000g 3.3 volt operation Low Jitter TTL compatible (HCT) at specified supply voltage Electrical Connection Pin Connection N.C. Grd & Case Output VDD High Q Crystal actively tuned oscillator circuit Power supply decoupling internal No internal PLL avoids cascading PLL problems High frequencies due to proprietary design All metal, resistance weld, hermetically sealed package Gold plated leads - Solder dipped leads available upon request RoHS Compliant, Lead Free Construction (unless solder dipped leads are supplied)

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

Parameter Frequency Duty Cycle Logic 0 Logic 1 Rise & Fall Time Jitter, RMS(2) Frequency Stability (1) Symbol --------VOL VOH tr,tf ----dF/F Conditions 10-90%VO <40MHz Fund & >40MHz Overall conditions including: voltage, calibration, temp., 10 yr aging, shock, vibration Min ----VDD-0.2V -------------100ppm Typical --------------------------------Max ns 8 psec 5 psec +100ppm

Parameter Supply Voltage Supply Current Output current Operating temperature Storage temperature Power Dissipation Lead temperature Load Start-up Time Symbol VDD IDD PD TL ----ts Conditions ----No Load ----------------Soldering, 10 sec. 20MHz or greater Min 0�C -55�C --------------------Typical 3.3V ------------------------------------Max 10 ms

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 to 55 Hz, Hz 300�C for 10 seconds Leak rate less than 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 characterization. RMS jitter bandwidth to 20MHz.

Test Load: Creating a Part Number A37X - FREQ Package Code HS Leaded 4 pin (14 pin) SM Leaded 4 pin (14 pin) SMD Gull Wing Input Voltage Code Specification 3.3V 5V Tolerance/Performance 0-70�C 9 Customer Specific to +85�C