32.768 kHz CXO3M OSCILLATOR High Stability/Fast Start-up Crystal Oscillator DESCRIPTION For those applications requiring a 32.768 kHz oscillator with high frequency stability over temperature or fast start-up, Statek offers the AT-crystal based 32.768 kHz CXO3M oscillator. A frequency stability of ±20 ppm over -40OC to +85OC is possible, compared to hundreds of parts-per-million for tuning-fork based 32.768 kHz oscillators. Whereas tuning-fork based oscillators start in hundreds of milliseconds, Statek’s 32.768 kHz CXO3M oscillators start in 0.8 ms (typically). FEATURES High frequency stability over temperature Fast start-up DIMENSIONS High shock resistance Surface mount CMOS and TTL compatible Optional Output Enable/Disable with Tri-State Low EMI emission Hermetically sealed ceramic package Full military testing available APPLICATIONS Military / Avionics Aircraft landing gear Avionics Smart Munitions SUGGESTED LAND PATTERN TYPICAL MAXIMUM DIM inches mm inches mm A 0.256 6.50 0.263 6.68 B 0.197 5.00 0.204 5.18 0.051 C (SM1) C (SM3/SM5) 0.055 1.30 1.40 0.055 0.063 1.40 1.60 D 0.055 1.40 0.065 1.65 E 0.060 1.52 0.070 1.78 PIN CONNECTIONS 1. 2. 3. 4. Enable/Disable (E) or No connection (N) Ground Output VDD inches (mm) STATEK CORPORATION 512 N. MAIN ST., ORANGE, CA 92868 714-639-7810 FAX: 714-997-1256 www.statek.com 10167 Rev B SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS Specifications are typical at 25 C unless otherwise noted. Specifications are subject to change without notice. Tighter specifications available (contact factory). O Supply Voltage1 3.3 V ±10% Calibration Tolerance2 ±100 ppm Frequency Stability Over Temperature3 ±10 to ±50 ppm for Commercial ±20 to ±100 ppm for Industrial ±30 to ±100 ppm for Military Output Load (CMOS) 15 pF Aging, first year 10 ppm MAX Shock Std: 3,000 g, 0.3 ms, ½ sine HG: 10,000 g, 0.3 ms, ½ sine Vibration4 20 g, 10-2,000 Hz swept sine Operating Temp. Range -10OC to 70OC (Commercial) -40OC to 85OC (Industrial) -55OC to 125OC (Military) MIN VOH Output Voltage High 0.9VDD VOL Output Voltage Low tstartup Start-up Time 0.8 tr Rise Time (10%-90%) 85 1000 ns tf Fall Time (10%-90%) 45 1000 ns 50 55 % Supply Current I DD TYP MAX UNIT V 0.1VDD V 45 -0.3 V to 5.0 V -55OC to 125OC 260OC for 20 sec. ENABLE/DISABLE OPTIONS (E/N) SYMBOL PARAMETER Duty Cycle Supply Voltage VDD Storage Temperature Maximum Process Temperature 500 ms For the 32.768 kHz CXO3M, Statek offers two enable/disable options: E and N. The E-version has a Tri-State output and stops oscillating internally when the output is put into the high Z state. The N-version does not have PIN 1 connected internally and so has no enable/disable capability. The following table summarizes the Enable/Disable option E. ENABLE/DISABLE OPTION E SUMMARY Enable (Pin 1 High*) Disable (Pin 1 Low) Output Frequency Output High Z State Oscillator Oscillates Stops Current 500 µA 3.2 µA * When PIN 1 is allowed to float, it is held high by an internal pull-up resistor. PACKAGING OPTIONS CXO3M - Tray Pack - 16 mm tape, 7˝ or 13˝ reels Per EIA 481 (see Tape and Reel datasheet #10109) µA 1. Other supply voltages available. Contact factory for ordering information. 2. Other tolerances available. 3. Does not include calibration tolerance. Other tolerances available. 4. Per MIL-STD-202G, Method 204D, Condition D. Random vibration testing also available. Note: All parameters are measured at ambient temperature with a 10 M!, 15 pF load. HOW TO ORDER 3.3 V 32.768 kHz CXO3M OSCILLATORS CXO3M HG = High Shock Blank=Standard S E SM3 “S” if special or custom design. Blank if Std. Enable/Disable Option E or N Termination Blank = SM1 = Gold Plated (Pb Free) SM3 = Solder Dipped SM5 = Solder Dipped (Pb Free) 32.768K , Frequency K = kHz 30 Calibration Tolerance @ 250C (in ppm) / 30 / I / Frequency Stability over Temp.Range (in ppm) Temperature Range C = -10OC to +70OC I = -40OC to +85OC M = -55OC to +125OC S = Customer Specified OR / / 50 / I Total Fre- Temperature Range quency Tol- C = -10OC to +70OC erance I = -40OC to +85OC (in ppm) M = -55OC to +125OC S = Customer Specified 10167 Rev B STATEK CORPORATION 512 N. MAIN ST., ORANGE, CA 92868 714-639-7810 FAX: 714-997-1256 www.statek.com