EURO QUARTZ CX3VSM CRYSTAL Miniature SMD Crystal for Pierce Oscillators 18kHz to 600kHz FEATURES Frequency Range 18kHz to 600kHz High shock resistance Low ageing Designed for low power applications Full MIL testing available OUTLINE & DIMENSIONS DESCRIPTION CX3VSM crystals are leadless devices designed for surface mounting on PCBs or hybrid substrates. The crystals are intended for use in Pierce (single inverter) oscillator circuits. SPECIFICATION Specifications stated are typical at 25°C unless otherwise indicated. Specifications may change without notice. Frequency Range: 18.0kHz to 600.0kHz Functional Mode: Tuning Fork (Flexure) Standard Calibration Tolerance1: see table Motional Resistance (R1): Figure 1 Max = 18~24.9kHz, 2x typical 25~600kHz, 2.5x typical Motional Capacitance (C1): Figure 2 Quality Factor (Q): Figure 3 Min. is 0.25x typical Shunt Capacitance (C0): 1.8pF max. Drive Level 18~24.9kHz: 0.5µW max. 25~600.0kHz: 1.0µW max. Turning Point (T0)2: Figure 4 Temperature Coefficient (k): -0.035ppm/°C2 Ageing, first year: 5ppm max. Shock, survival3: 1,500g peak, 0.3ms, ½ sine Vibration, survival3: 10g rms, 20~2000Hz Operating Temperature Range Commercial: -10° to +70°C Industrial: -40° to +85°C Military: -55 to +125°C Storage Temperature Range: -55° to +125°C Maximum Process Temperature: +260°C for 20 seconds 1. 2. 3. Dim. H Glass Lid Ceramic Lid SM1 SM2 SM3 SM4 SM5 1.35 1.40 1.47 1.40 1.47 1.70 1.75 1.83 1.75 1.83 Tighter frequency calibration is available. Other turning point is available Higher shock and vibration survival is available PACKAGING OPTIONS CX3VSM crystals are available either tray packed (<250pcs) or tape and reel (>250 pieces). 16mm tape, 178mm or 330mm reels (EIA 418). HOW TO ORDER CX2VSM CRYSTALS CX3V - S 'S' if special, custom design. Otherwise leave blank - C Blank = glass lid C = ceramic lid - SM1 - Terminations SM1 = Gold plated * SM2 = Solder plated SM3 = Solder dipped SM4 = Solder plated * SM5 = Solder dipped * * = Lead free 32.0K, 30 Frequency K = kHz Calibration Tolerance @25°C (in ppm) / M 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 EURO QUARTZ CX3VSM CRYSTAL Miniature SMD Crystal for Pierce Oscillators STANDARD CALIBRATION TOLERANCE 18kHz to 600kHz FIGURE 1 CX3V Typical Motional Resistance R1 Frequency Range (kHz) 18~74.9 75~169.9 170~249 250~600 ±30ppm (0.003%) ±100ppm (0.01%) ±1000ppm (0.1%) ±50ppm (0.005%) ±100ppm (0.01%) ±1000ppm (0.1%) ±100ppm (0.01%) ±200ppm (0.02%) ±2000ppm (0.2%) ±200ppm (0.02%) ±500ppm (0.05%) ±5000ppm (0.5%) LOAD CAPACITANCE (CL)* Frequency Range (kHz) 18~24.9 25~54.9 55~100.0 Load Capacitance 10pF 9pF 8pF Frequency Range (kHz) 100.1~179.9 180~600 Load Capacitance 5pF 4pF FIGURE 2 CX3V Typical Motional Capacitance C1 * The load capacitance we use to calibrate CX3VSM. (Other CL is available.) CRYSTAL EQUIVALENT CIRCUIT R1 Motional Resistance C1 Motional Capacitance L1 Motional Inductance C0 Shunt Capacitance FIGURE 3 CX3V Typical Quality Factor (Q) CONVENTIONAL CMOS PIERCE OSCILLATOR CIRCUIT FIGURE 4 CX3V Typical Turning Point Temperature (To) Turning Point Temperature Note: Frequency f at temperature T is related to frequency F0 at turning point temperature To by: f-fo =k(T-To)2 fo 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