EURO QUARTZ 225° HTXO OSCILLATOR High Temperature Crystal Oscillator 1.5MHz to 50MHz Page 1 of 2 FEATURES Extended high temperature operation up to 225°C 3.3V or 5.0V supply voltages Excellent stability over temperature Fast start-up CMOS output Optional Enable/Disable function Low EMI emission OUTLINE & DIMENSIONS DESCRIPTION HTXO oscillators are designed to operate at ambient temperatures <225°C.The rugged design consists of a high-shock crystal and a high temperature CMOS integrated circuit packaged in a 7.5 x 5.0mm surface-mount ceramic package. APPLICATIONS Oil & gas downhole instrumentation Rotary shaft sensors Underground boring tools Avionics applications SPECIFICATION PACKAGING OPTIONS Frequency Range1: Supply Voltage: Calibration Tolerance2: Frequency Stability over Temperature3: Total Tolerance4: Output Load (CMOS): Start-up Time: Rise/Fall Time: Duty Cycle: Shock, survival5: Vibration, survival6: Operating Temperature Range7: 1.5MHz to 50.0MHz +5.0Volts ±10% or +3.3Volts ±5% ±100ppm +250 ppm for 25°C to 225°C ±350ppm for 25°C to 225°C 15pF 5ms max. 10ns max. 40% min., 60% max. Up to 30,000g, 0.5ms, ½ sine 20g, 10-2000Hz, swept sine -55° up to 225°C HTXO oscillators are available either tray packed (<250pcs) or tape and reel (>250 pieces). 16mm tape, 178mm or 330mm reels per EIA 418). SUPPLY CURRENT Current consumption typically 2mA at 8MHz, 3.3V, 225°C and Cload = 10pF EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE Tel: +44 (0)1460 230000 Fax: +44 (0)1460 230001 [email protected] www.euroquartz.co.uk EURO QUARTZ 225° HTXO OSCILLATOR High Temperature Crystal Oscillator 1.5MHz to 50MHz Page 2 of 2 ABSOLUTE MAXIMUM RATINGS Supply Voltage: Storage Temperature: -0.5V to +6.0V (5.V VDD) -55° to +125°C ENABLE/DISABLE OPTIONS There are two Enable/Disable options available, T and N. The Tversion has a tri-state output and oscillates internally when the output is put into the High Z state. The N-version does not have Pin 1 connected internally and has no enable/disable capability. The following table describes the Enable/Disable option T. T N Enable (Pin 1 Low) Output: Frequency Output Oscillator: Oscillates Current: Normal Frequency Output Oscillates Normal Disable (Pin 1 High) Output: Oscillator: Current: High Z state Stops Very low N/C N/C N/C HOW TO ORDER HTXO SMD CRYSTAL OSCILLATORS HTXO 4 Supply Voltage 4 = 3.3V 5 = 5.0V B Shock Level A = 5,000g B = 10,000g C = 20,000g D = 30,000g S T Enable/Disable option T or N Blank = standard S = special or custom - SM5 - 20.0M / Termination Blank = SM1= Gold plated SM5 = Solder dipped (SM1 and SM5 are pB free) Frequency M = MHz Calibration Tolerance at 25°C (in ±ppm) / Frequency Stability over Temp. Range (in ±ppm) / 350 Total Frequency Tolerance (In ppm) / Q Temp. Range Q = +25° ~ +225°C S = Customer specified temp. range EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE Tel: +44 (0)1460 230000 Fax: +44 (0)1460 230001 [email protected] www.euroquartz.co.uk