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| LXO OSCILLATOR 10 kHz to 2.1 MHz TM Low Power Crystal Oscillator DESCRIPTION The LXO oscillator has the highest accuracy and stability of all STATEK oscillators. The design consists of a CMOScompatible hybrid circuit, packaged in a hermetically-sealed metal DIP. Permanent, precision tuning of the oscillator is accomplished by laser trimming the crystal after it has been hermetically sealed in a ceramic package and connected to the oscillator circuit. This method of fine tuning allows for very tight calibration tolerance and eliminates the need for a trimming capacitor, a major source of long-term frequency drift. The specifications and characteristics of the LXO vary with frequency. The characteristics of the 32.768 kHz model are presented in this data sheet. z MH .0 0-2 LX PACKAGE DIMENSIONS FEATURES Low power consumption Low aging CMOS compatible Double hermetically sealed package Full military testing available 5V operation standard 2.5V to 15V operation also available E F G H J A I PIN NO.1 D PIN NO.7 B APPLICATIONS C Industrial, Computer & Communications General purpose clock oscillator Data Logger Remote sensor Liquid level sensing Medical test and diagnostics Military Portable field communication Military high speed modem Flight recorder PIN NO.14 PIN NO.8 DIM A B C D E F G H I J inches 0.810 MAX. 0.510 MAX. _ 0.300 + 0.005 _ 0.600 + 0.005 mm 20.57 MAX. 12.95 MAX. _ 7.62 + 0.13 _ 15.24 + 0.13 0.430 TYP. 0.240 MAX. 0.040 TYP. 0.150 MIN. 0.018 0.002 0.070 TYP. + _ 10.92 TYP. 6.10 MAX. 1.02 TYP. 3.81 MIN. _ 0.46 + 0.05 1.78 TYP. * Position of bumps for reference only 10110 - Rev D S YS TEM CERTIFIC AT N IO STATEK CORPORATION 512 N. MAIN ST., ORANGE, CA 92868 714-639-7810 FAX: 714-997-1256 www.statek.com IS O 90 01 SPECIFICATIONS: LXO 32.768 kHz ABSOLUTE MAXIMUM RATINGS Specifications are typical at 25 C unless otherwise noted. Specifications are subject to change without notice. Supply Voltage (VDD) Calibration Tolerance1 (at 5V) _ 5V + 10% (standard) (2.5V to 15V available) + _ + _ + _ O Supply Voltage VDD Storage Temperature -0.3V to 7V -55OC to +125OC ELECTRICAL CHARACTERISTICS LXO-32.768 kHz 10 ppm (0.001%) 25 ppm (0.0025%) 100 ppm (0.01%) Typ. MAX. Typ. MAX. (0.0025%) (0.004%) (0.007%) (0.01%) All parameters are measured at ambient temperature with a 10M and 10pF load at 5V. SYMBOL PARAMETER VOH VOL *tr *tf IDD Output Voltage Hi Output Voltage Lo Rise Time Fall Time Supply Current Duty Cycle 40 MIN. 4.8 TYP. MAX. UNIT 4.95 0.05 0.16 0.46 45 50 0.2 1 1 60 60 V V Frequency Stability 2 0OC to +50OC -20OC to+70OC Voltage Coefficient Current Consumption Aging Shock, survival + _ 25 ppm + _ 40 ppm + _ 70 ppm + _ 100 ppm + _ + _ sec. sec. A % 1 ppm/V Typ. 3 ppm/V MAX. 1 ppm/year Typ. 3 ppm/year MAX. * Models with faster rise and fall time available, contact factory. See below + _ + _ PIN CONNECTIONS 1000 g peak, 1ms,1/2 sine + _ 3 ppm MAX. Vibration, survival 10 g RMS, 10-2000 Hz + _ 3 ppm MAX. Frequency Change vs.10% Output Load Change + _ 1 ppm MAX. Operating Temperature -10OC to +70OC (Commercial) -40OC to +85OC (Industrial) -55OC to +125OC (Military) 1. Tighter tolerances available 2. Does not include calibration tolerance. (Positive variations small compared to negative variations.) TYPICAL CURRENT CONSUMPTION, Pin 1 7 8 14 Connection NC Ground Output VDD PACKAGING LXO -Tube Pack OUTPUT WAVE FORM LXO-32.768 kHz 100 CURRENT (u A) 80 60 40 20 10 2 3 4 5 6 7 VDD VOH 90%* 10%* VOL 0 tr tf * Of VDD VD D (VOLTS) HOW TO ORDER LXO CRYSTAL OSCILLATORS LXO S "S" if special or custom design. Blank if Std. 32.768K Frequency K = kHz M = MHz , 10 Calibration Tolerance @ 25OC (in ppm) / I Operating Temp. Range: C = -10OC to +70OC I = -40OC to +85OC M = -55OC to +125OC S = Customer Specified *Other calibrations available: indicate your requirement in ppm. 10110 - Rev D S YS TEM CERTIFIC AT N IO STATEK CORPORATION 512 N. MAIN ST., ORANGE, CA 92868 714-639-7810 FAX: 714-997-1256 www.statek.com IS O 90 01 |
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