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CRYSTAL CLOCK OSCILLATORS
CMOS
Data Sheet 9344A Rev. L
HS-420 Series
Description
The HS-420 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.
Features
• Wide frequency range–244. 0Hz to 625. 0kHz • 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 • All metal, resistance weld, hermetically sealed package Electrical Connection Pin 1 7 8 14 Connection N. C. Grd & Case Output VDD • Capable of driving 3TTL Loads • Low Jitter • High Q Crystal actively tuned oscillator circuit • Power supply decoupling internal • No internal PLL avoids cascading PLL problems • 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
CRYSTAL CLOCK OSCILLATORS
HS-420 Series CMOS Continued
Data Sheet 9344A Rev. L
Operating Conditions and Output Characteristics
Electrical Characteristics
Parameter Frequency Duty Cycle Logic 0 Logic 1 Rise & Fall Time Jitter, RMS(2) Frequency Stability (1) Symbol Conditions ------------@ VDD/2 VOL @ 600µA @ 600µA VOH tr,tf 10-90%VO --------dF/F Overall conditions including: voltage, calibration, temp. , 10 yr aging, shock, vibration Min 244. 0Hz 45/55% ----VDD-0. 2V ---------100ppm Typical ----------------7 ns --------Max 625kHz 55/45% 0. 2V ----30 ns 8 psec +100ppm
General Characteristics
Parameter Supply Voltage Supply Current Output current Operating temperature Storage temperature Power Dissipation Lead temperature Load Start-up Time Symbol VDD IDD IO TA TS PD TL ...