LXO OSCILLATOR 10 kHz to 2.1 MHz 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. Hz M 2.0 0 LX PACKAGE DIMENSIONS FEATURES E Low power consumption F G H Low aging I J CMOS compatible Double hermetically sealed package Full military testing available 5V operation standard A PIN NO.1 PIN NO.7 D 2.5V to 15V operation also available B C APPLICATIONS Industrial, Computer & Communications PIN NO.8 PIN NO.14 General purpose clock oscillator Data Logger DIM inches mm A 0.810 MAX. 20.57 MAX. B 0.510 MAX. 12.95 MAX. C 0.300 +_ 0.005 7.62 +_ 0.13 D 0.600 +_ 0.005 15.24 +_ 0.13 E 0.430 TYP. 10.92 TYP. F 0.240 MAX. 6.10 MAX. Military high speed modem G 0.040 TYP. 1.02 TYP. Flight recorder H 0.150 MIN. 3.81 MIN. Remote sensor Liquid level sensing Medical test and diagnostics Military Portable field communication + _ I 0.018 0.002 0.46 +_ 0.05 J 0.070 TYP. 1.78 TYP. * Position of bumps for reference only IS O STATEK CORPORATION 512 N. MAIN ST., ORANGE, CA 92868 714-639-7810 FAX: 714-997-1256 www.statek.com YS 90 01 TEM C ERT I F I C AT N IO S 10110 - Rev D SPECIFICATIONS: LXO 32.768 kHz ABSOLUTE MAXIMUM RATINGS O Specifications are typical at 25 C unless otherwise noted. Specifications are subject to change without notice. Supply Voltage VDD Storage Temperature 5V +_ 10% (standard) (2.5V to 15V available) Supply Voltage (VDD) Calibration Tolerance1 (at 5V) + _ 10 ppm (0.001%) + _ 25 ppm (0.0025%) + _ 100 ppm (0.01%) -0.3V to 7V -55OC to +125OC ELECTRICAL CHARACTERISTICS LXO-32.768 kHz All parameters are measured at ambient temperature with a 10MΩ and 10pF load at 5V. SYMBOL PARAMETER MIN. TYP. MAX. UNIT 4.8 4.95 2 Frequency Stability + _ 0OC to +50OC 25 ppm + _ 40 ppm + _ 70 ppm + _ 100 ppm -20OC to+70OC + _ Voltage Coefficient + _ Current Consumption Typ. MAX. Typ. MAX. (0.0025%) (0.004%) (0.007%) (0.01%) 1 ppm/V Typ. 3 ppm/V MAX. Output Voltage Hi VOL *tr *tf IDD Output Voltage Lo Rise Time Fall Time Supply Current Duty Cycle 40 V 0.05 0.16 0.46 45 0.2 1 1 60 µsec. µsec. µA V 50 60 % * Models with faster rise and fall time available, contact factory. See below + _ Aging + _ 1 ppm/year Typ. 3 ppm/year MAX. PIN CONNECTIONS Pin Shock, survival 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) Connection 1 NC 7 Ground 8 Output 14 VDD PACKAGING LXO -Tube Pack OUTPUT WAVE FORM 1. Tighter tolerances available 2. Does not include calibration tolerance. (Positive variations small compared to negative variations.) TYPICAL CURRENT CONSUMPTION, LXO-32.768 kHz 100 CURRENT (u A) VOH VDD VOH 90%* 80 60 VOL 0 40 20 10 10%* tr tf * Of VDD 2 4 3 5 6 7 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. IS O STATEK CORPORATION 512 N. MAIN ST., ORANGE, CA 92868 714-639-7810 FAX: 714-997-1256 www.statek.com YS 90 01 TEM C ERT I F I C AT N IO S 10110 - Rev D