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 CONDITIONS CHARACTERISTICS Output Logic - Positive ECL Square Wave (PECL) Input Voltage (VDD) - Frequency Range (fO) - 19.440 ~ 180.0 (Fund, Third, Fifth / UM-1) MHz Operating Temperature (TOPR) - 0 ~ +70 (Std.) / -40 ~ 85 (Option) °C Storage Temperature (TSTG) - -55 ~ +125 °C Overall Frequency Stability Input Current (IDD) 3.3 ±10% 5.0 ±10% UNITS VDC - ±20 (0 ~ +70°C Only), ±25, ±50, ±100 max. PPM (a) Frequency Tolerance Inclusive of Overall Stability - (b) Temperature Stability Inclusive of Overall Stability (Operating Temperature) - (c) Input Voltage Stability Inclusive of Overall Stability (VDD ±5%) - (d) Load Stability Inclusive of Overall Stability (RL ±5%) - - 80 max. 120 max. mA @ 25°C ±1 max. PPM/Y Rise Time (TR) 20% to 80% of Waveform 2 max. nS Fall Time (TF) 20% to 80% of Waveform 2 max. nS VDC Aging Output Voltage High "1" VOH PECL VDD - 1.025 min. Output Voltage Low "0" VOL PECL VDD - 1.620 max. VDC - 50 Ohms 50% of Waveform 50 ±10 (Std.) / 50 ±5 (Option) % - 10 max. mS RMS 3.5 max. ps Load Duty Cycle Start-Up Time (TS) Jitter 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 494 Oscilent SMD Oscillators Frequency - 28.0 M Enter your freq. e.g. 28.0M =28.00 MHz Voltage Supply Option Frequency Tolerance & Stability (max.) -3 5 = 5VDC 3 = 3.3VDC E D= E= F= G= ±100 PPM ±50 PPM ±25 PPM ±20 PPM Operating Temp. (° C) Duty Cycle N Blank* = 0~+70 N = -40~+85 Pin 1 Connection -T CO Blank*= 50±10% T = -50±5% 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