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| Oscilent Corporation | 494 Series Surface Mount Crystal Oscillators Page 1 of 2 SMD Oscillators Series Number Package Description Last Modified 494 6 Pad PCB J-Lead PECL Output Jan. 01 2007 FEATURES - Wave form symmetry of 40/60% - PECL output - Industry standard 6 Pad PCB J-Lead SMD Package - RoHs / Lead Free compliant OPERATING CONDITIONS / ELECTRICAL CHARACTERISTICS PARAMETERS Output Logic Input Voltage (VDD) Frequency Range (fO) Operating Temperature (TOPR) Storage Temperature (TSTG) Overall Frequency Stability CONDITIONS (a) Frequency Tolerance (b) Temperature Stability (c) Input Voltage Stability (d) Load Stability Input Current (IDD) Aging Rise Time (TR) Fall Time (TF) Output Voltage High "1" VOH Output Voltage Low "0" VOL Load Duty Cycle Start-Up Time (TS) Jitter @ 25C 20% to 80% of Waveform 20% to 80% of Waveform PECL PECL 50% of Waveform RMS CHARACTERISTICS Positive ECL Square Wave (PECL) 3.3 10% 5.0 10% UNITS VDC MHz C C PPM mA PPM/Y nS nS VDC VDC Ohms % mS ps 19.440 ~ 180.0 (Fund, Third, Fifth / UM-1) 0 ~ +70 (Std.) / -40 ~ 85 (Option) -55 ~ +125 20 (0 ~ +70C Only), 25, 50, 100 max. Inclusive of Overall Stability Inclusive of Overall Stability (Operating Temperature) Inclusive of Overall Stability (VDD 5%) Inclusive of Overall Stability (RL 5%) 80 max. 1 max. 2 max. 2 max. VDD - 1.025 min. VDD - 1.620 max. 50 50 10 (Std.) / 50 5 (Option) 10 max. 3.5 max. 120 max. Oscilent Corporation | 494 Series Surface Mount Crystal Oscillators Page 2 of 2 PIN CONNECTIONS #1 Complimentary Output #2 Tri-State Enable Low #3 Ground #4 Output #5 N.C. #6 Vdd PART NUMBER GUIDE Series Number Frequency Voltage Supply Option Frequency Tolerance & Stability (max.) Operating Temp. ( C) Duty Cycle Pin 1 Connection 494 Oscilent SMD Oscillators - 28.0 M Enter your freq. e.g. 28.0M =28.00 MHz -3 5 = 5VDC 3 = 3.3VDC D= E= F= G= E 100 PPM 50 PPM 25 PPM 20 PPM N Blank* = 0~+70 N = -40~+85 -T Blank*= 5010% T = -505% CO CO = Complimentary Output NOTE: - Deviations on all parameters available. Please consult Oscilent for details. DEFINITIONS: - Click on the characteristic names above, for definitions of the particular characteristic. *STANDARDS: - "Blank" part number selections, indicate standard variables for the particular characteristic. PACKAGING: - Add -TR for Tape/Reel. Click here for tape/reel specifications Series No.: 494 Crystal Oscillators | Quartz Crystal | TCXO | VCXO | IF SAW Filter | RF SAW Filter | Ceramic Resonator Crystal Filter | Ceramic Filter | SAW Filter / SAW Devices | Site Map |
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