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| CX-3V-SM CRYSTAL 18 kHz to 600 kHz TM Miniature Surface Mount Quartz Crystal for Pierce Oscillators DESCRIPTION actual size The CX-3V-SM quartz crystals are leadless devices designed for surface mounting on printed circuit boards or hybrid substrates. These miniature crystals are intended to be used in Pierce oscillators. They are hermetically sealed in a rugged, miniature ceramic package. They are manufactured using the STATEKdeveloped photolithographic process, and were designed utilizing the experience acquired by producing millions of crystals for industrial, commercial, military and medical applications. Maximum process temperature should not exceed 260O C. FEATURES side view PACKAGE DIMENSIONS D A TOP D BOTTOM D B C E Miniature tuning fork design High shock resistance Designed for low power applications Compatible with hybrid or PC board packaging Low aging Full military testing available Ideal for battery operated applications Designed and manufactured in the USA EQUIVALENT CIRCUIT TYP. DIM A B C D E DIM "C"" MAX SM1 SM2 SM3 INCHES .265 .103 .050 .052 mm 6.73 2.62 1.27 1.32 .280 .114 .060 .062 MAX. INCHES mm 7.11 2.90 1.52 1.57 see below GLASS LID INCHES .058 .060 .063 mm 1.47 1.52 1.60 CERAMIC LID INCHES .069 .071 .074 mm 1.75 1.80 1.88 C0 1 L1 C1 R1 2 CONVENTIONAL CMOS PIERCE OSCILLATOR CIRCUIT R1 Motional Resistance L1 Motional Inductance C1 Motional Capacitance C0 Shunt Capacitance SUGGESTED LAND PATTERN .070[1.78] Rf BUFFER OSC Freq (fO) Contact factory for design guidelines .120[3.05] AMPLIFIER CS RA CG INCHES[mm] .215[5.46] CX-1 CX-3 CD 10104 - Rev A STATEK CORPORATION 512 N. MAIN ST., ORANGE, CA 92868 714-639-7810 FAX: 714-997-1256 www.statek.com SPECIFICATIONS FIGURE 1 CX-3V TYPICAL MOTIONAL RESISTANCE (R1) Specifications are typical at 25OC unless otherwise noted. Specifications are subject to change without notice. Frequency Range 18 kHz to 600 kHz Functional Mode Tuning Fork (Flexure) Calibration Tolerance* A, B or C (see below) Motional Resistance (R1) See Figure 1 MAX.: 18-25 kHz, 2x Typ. 25-600 kHz, 2.5x Typ. Motional Capacitance (C1) Figure 2 Quality Factor (Q) Figure 3 Min. is 0.25x Typ. Shunt Capacitance (C0) 1.8 pF MAX. Drive Level 18-25 kHz 0.5 W MAX. 25-600 kHz 1.0 W MAX. Turning Point (To )** Figure 4 Temperature Coefficient (k) -0.035 ppm/0C2 Aging, first year 5ppm MAX. Shock*** 1,500g peak, 0.3 msec., 1/2 sine Vibration, survival*** 10g rms, 20-2,000 Hz random Operating Temperature -10OC to +70OC Commercial -40OC to +85OC Industrial -55OC to +125OC Military Storage Temperature -55OC to +125OC Max Process Temperature 260OC for 20 sec. * Tighter frequency calibration available. ** Other turning point available. *** Higher shock and vibration available. 300 200 100 50 R1(k ) 20 10 5 2 18 50 100 200 600 Frequency (kHz) FIGURE 2 CX-3V TYPICAL MOTIONAL CAPACITANCE (C1) 5 C1(fF) 2 1.0 0.5 18 50 100 200 600 Frequency (kHz) FIGURE 3 CX-3V TYPICAL QUALITY FACTOR (Q) 300 200 (in 1000's) 100 50 CX-3V Crystal Calibration T olerance at 25OC 20 18 50 100 200 600 Frequency Range (kHz) Calibration 18-74.9 A B C + _ + _ + _ Frequency (kHz) 75-169.9 + _ + _ + _ 170-249.9 + _ + _ + _ 250-600 + _ + _ FIGURE 4 CX-3V TYPICAL TURNING POINT TEMP (T0) . 0.003% 0.01% 0.1% 0.005% 0.01% 0.1% 0.01% 0.02% 0.2% 0.02% 0.05% *** Other calibration values available, consult factory. Load Capacitance (CL), Used to Calibrate CX-3V (other CL available) TO( C) + _ O 0.5% +80 +70 +60 +50 +40 +30 +20 +10 0 -10 -20 18 50 100 200 600 Frequency Load Range Capacitance (kHz) (pF) 18-24.9 25-54.9 55-100.0 10 9 8 Frequency Range (kHz) 100.1-179.9 180-600 Load Capacitance (pF) 5 4 Frequency (kHz) Note: Frequency (f) deviation from frequency (fo) @ turning point 2 f-fO = k(T-T ) O fO TERMINATIONS HOW TO ORDER CX-3V-SM CRYSTALS CX-3V "S" if special or custom design. Blank if Std. -SM1 32.768 kHz ( A / I ) Designation SM1 SM2 SM3 Termination Gold Plated Nickel, Solder Plated Nickel, Solder Plated and Solder Dipped SM1 Frequency SM2 SM3 Blank = Glass Lid C=Ceramic Lid Calibration Tolerance* @ 250C (A) (B) (C) Temp. Range: C = Commercial I = Industrial M = Military S = Specify PACKAGING CX-3V-SM - Tray Pack (Standard) -16mm tape, 7" or 13" reels (Optional) Per EIA 481 (see data sheet 10109) 10104 - Rev A *Other calibration fill in ppm. STATEK CORPORATION 512 N. MAIN ST., ORANGE, CA 92868 714-639-7810 FAX: 714-997-1256 www.statek.com |
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