ECX-205/206 SMD TUNING FORK CRYSTAL Housing for the ECX-205/206 crystal is made from the same thermoplastic that is industry standard for integrated circuits. This ruggedized molded package is excellent for SMD applications. FEATURES • Low profile • Long term stability • Industry standard footprint • Tape and Reel (2,000 pcs) PART NUMBERING GUIDE “EXAMPLE” ECS ECS – – FREQUENCY .327 .327 LOAD CAPACITANCE 12.5 12.5 – – PACKAGE TYPE* 11 6 – – * Package Type examples (11= ECX-205, 6= ECX-206) OPERATING CONDITIONS/ELECTRICAL CHARACTERISTICS PARAMETERS NOMINAL FREQUENCY LOAD CAPACITANCE DRIVE LEVEL CALIBRATION TOLERANCE EQUIVALENT SERIES RESISTANCE TEMPERATURE COEFFICIENT OPERATING TEMPERATURE RANGE MAX. OPERATING TEMPERATURE RANGE Q FACTOR TURNOVER TEMPERATURE STORAGE TEMPERATURE RANGE INSULATION RESISTANCE SHUNT CAPACITANCE MOTIONAL CAPACITANCE AGING (FIRST YEAR) ECX-205/206 32.768 12.5 Standard (6.0 Optional) 1.0 max. ±20 50 max. -0.040 PPM/˚C 2 max. -10 ~ +60 -40 ~ +85 50,000 min. +25 ± 5 -55 ~ +125 500M Ω min./ DC 100V 2.0 typical 0.003 pF typical ±3 PPM max. @ +25˚C Fo CL DL @ +25˚C R1 T OPR Q TO T STG IR Co C1 ∆f/fo UNITS KHz pF µW PPM KΩ PPM/(∆C˚) ˚C °C °C °C MΩ pF pF PPM PACKAGE DIMENSIONS (mm) 10.41 RECOMMENDED OSCILLATION CIRCUIT 0.2 Min. 3.4 2.29 PARABOLIC TEMPERATURE CURVE T (˚C) Rf -20 -10 0 10 20 30 40 50 60 70 -10 2.54 -20 0.51 4.2 Rd -50 C1 C2 1.5 0.8 5.0 ELECTRICAL CHARACTERISTICS IC: TC 4069P, Rf: 10MΩ Rd: 330KΩ (As required) C 1 = 22pF, C 2 = 22pF V DD = 3.0V 2.7 Figure 2) ECX-205/206 Land Pattern- Top view #4 #3 #4 #3 #1 #2 #1 #2 Figure 3) ECX-205 Pin Connection- Top view -60 f/f (PPM) 1.5 2.7 -30 -40 Figure 1) ECX-205/206 - Side and End views To determine frequency stability, use parabolic curvature. For example: What is the stability at 45˚C? 1) Change in T (˚C) = 45 -25 = 20˚C 2 2) Change in frequency = -0.04 PPM x (∆T) 2 = -0.04 PPM x (20) = -16.0 PPM In this circuit, low drive level with a maximum of 1µW is recommended. If excessive drive is applied, irregular oscillation or quartz element fractures may occur. Figure 4) ECX-206 Pin Connection - Top view ECS, INC. INTERNATIONAL 1105 S. RIDGEVIEW, OLATHE, KS 66062 • 913-782-7787 • 800-237-1041 • FAX 913-782-6991 • WWW.ECSXTAL.COM SMD CRYSTALS 12 SMD CRYSTALS