EURO QUARTZ CXOX OSCILLATOR Fast Start-up/Tight Tolerance/High Shock 32.768kHz Actual Size FEATURES Fast start-up Tight tolerance High shock resistance Optional Enable/Disable with Tri-State Low EMI emission Full military testing available Hermetically sealed package Top View Side View OUTLINE & DIMENSIONS DESCRIPTION CXOX oscillators are 32.768kHz, ultra-miniature, surface mount units packaged in a 3.40 x 2.50 x 1.12mm package. The oscillators have been designed to provide a fast start-up time with tight frequency stability over a wide operating temperature range of -55° to +125°C. The design of the part ensures there is a significantly greater ability to withstand significantly higher shock levels than standard tuning fork crystal designs. SPECIFICATION Specifications are typical at 25°C unless otherwise indicated. Tighter specifications are available, contact Euroquartz technical sales. Frequency: 32.768kHz Supply Voltage: +3.3 Volts ±10% Calibration Tolerance: ±25ppm Frequency Stability over Operating Temperature Range Commercial (0° ~ +70°C): ±10 to ±50ppm Industrial(-40° ~ +85°C): ±20 to ±100ppm Military (-55° ~ +125°C): ±50 to ±100ppm Typical Input Current: 650µA Output Load: 15pF (CMOS) Rise Time: 85ns typical, 160ns maximum Fall Time: 45ns typical, 100ns maximum Duty Cycle: 45/55% Ageing First Year: ±5ppm Shock, Survival: Standard: 5000g, 0.3ms, ½ sine HG: 10,000g, 0.3ms, ½ sine Vibration Survival: 20g, 10~2000Hz swept sine Maximum Process Temperature: 260°C for 20 seconds Storage Temperature: -55° to +125°C ENABLE/DISABLE OPTIONS There are two Enable/Disable options available, 'E' and 'N'. The 'E' option stops oscillating when the output is put into the High Z state. the 'N' version does not have Pad 1 connected internally. the table below describes the 'E' Enable/Disable option. Enable (Pad 1 High) Disable (Pad 1 Low) Output Oscillator Current Frequency Output Oscillates Normal High Z state Stops Very Low When Pad 1 is allowed to float it is held high by an internal pull-up resistor. PACKAGING OPTIONS CXOX oscillators are available either tray packed (<250pcs) or tape and reel (>250 pieces). 12mm tape, 178mm or 330mm reels (EIA 418). HOW TO ORDER CXOX 32.768kHz SMD CRYSTAL OSCILLATORS CXOX HG Shock Level Blank = Std. HG = High Shock 4 Supply Voltage 1 = 1.8V 2 = 2.5V 3 = 3.0V 4 = 3.3V 5 = 5.0V S N Enable/Disable option, E or N Blank = standard S = special or custom - SM3 , - 32.768k / 30 Terminations Blank = SM1 =Gold plated SM3 = Solder dipped SM5 = Solder dipped (SM1 and SM5 are pB free) Frequency in MHz / Calibration Tolerance at 25°C (in ±ppm) 30 / – I Temp. Range C = -10° ~ +70°C I = -40° ~ +85°C M = -55° ~ +125°C S = Customer specified Frequency Stability over Temp. Range (in ppm) OR / – / – / 50 Total Frequency Tolerance (in ppm) / I Temp. Range C = -10° ~ +70°C I = -40° ~ +85°C M = -55° ~ +125°C S = Customer specified 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