HIGH TEMPERATURE OSCILLATORS 32.768 kHz High Stability/Fast Start-up/High Shock T KH OM X C DESCRIPTION For high temperature, high stability and fast start-up applications, Statek offers the AT crystal-based 32.768 kHz CXOMKHT and CXOXHT oscillators. These oscillators are designed to operate at temperatures up to 200OC. A highshock version is also offered that features 30,000 g shock survival. Other features include fast start-up time (0.8 ms typical) and low current operation (500 µA at 25OC.) HT OX X C PACKAGE DIMENSIONS FEATURES CXOMKHT High temperature operation up to 200OC Overall 5 times improvement in total frequency stability when compared to a typical tuning fork design A High-Shock version that features 30,000 g shock survival Excellent frequency stability over temperature range Fast start-up CXOXHT CMOS and TTL compatible Optional output enable/disable Low current Hermetically sealed ceramic package Full military testing available APPLICATIONS CXOXHT Industrial CXOMKHT MAXIMUM MAXIMUM Downhole instrumentation DIM inches mm inches mm Rotary shaft sensors A 0.136 3.40 0.263 6.68 Underground boring tools B 0.107 2.70 0.204 5.18 C (SM1) 0.053 1.36 0.060 1.52 C (SM3/SM5) 0.058 1.48 0.065 1.65 D 0.041 1.10 0.065 1.65 E 0.031 0.85 0.070 1.78 SUGGESTED LAND PATTERN CXOMKHT CXOXHT PIN CONNECTIONS 1. Enable/Disable (E) or No Connection (N) 2. Ground 3. Output 4. VDD 10201 Rev C STATEK CORPORATION 512 N. MAIN ST., ORANGE, CA 92868 714-639-7810 FAX: 714-997-1256 www.statek.com ABSOLUTE MAXIMUM RATINGS SPECIFICATIONS O Specifications are typical at 25 C unless otherwise noted. Specifications are subject to change without notice. Tighter specifications available. Please contact factory. Supply Voltage Supply Voltage VDD -0.3 V to 5.0 V Storage Temperature -55OC to 125OC Maximum Process Temperature 260OC, 20 seconds 3.3 V ± 10% Calibration Tolerance + _ 100 ppm, or tighter as required Frequency Stability over Temperature + _ 100 ppm for 25OC to 150OC 150 ppm for 25OC to 175OC + _ + _ ENABLE/DISABLE OPTIONS (E/N) For the 32.768 kHz CXOXHT and CXOMKHT, 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 describes the Enable/Disable option E. 175 ppm for 25OC to 200OC + _ Total Tolerance1 Supply Current (Typical) 200 ppm for 25OC to 200OC 500 µA Output Load (CMOS) 15 pF Start-up Time 0.8 ms typical Rise/Fall Time 85 ns/ 45 ns Duty Cycle 40% MIN, 60% MAX Aging, first year 10 ppm MAX at 25OC Aging, 1,000 Hrs 100 ppm MAX at 200OC Output Shock, survival CXOXHT Std: 5,000 g, 0.3 ms, 1/2 sine CXOMKHT Std: 3,000 g, 0.3 ms, 1/2 sine HG: 10,000 g, 0.3 ms, 1/2 sine HG: 30,000 g, 0.5 ms, 1/2 sine Oscillator CXOMK CXOX 2 ENABLE/DISABLE OPTION E FUNCTION TABLE Disable (Pin 1 Low) Frequency output High Z State Oscillates Stops O 3.2 µA at 25OC 500 µA at 25 C Current * When PIN 1 is allowed to float, it is held by an internal pull-up resistor. PACKAGING OPTIONS CXOXHT, CXOMKHT - Tray Pack - 16 mm tape, 7” or 13” reels 20 g, 10-2,000 Hz swept sine Vibration, survival Enable (Pin 1 High*) 3 Operating Temp Range -55OC up to 200OC Per EIA 481 (see Tape and Reel data sheet # 10109) 1. Includes calibration tolerance. Other tolerances available. 2. Per MIL-STD-202G, Method 204D, Condition D. Random vibration testing available. Note: All parameters are measured at ambient temperature with a 10 MΩ, 15 pF load. 3. Expected life at 200ºC is in excess of 1,500 hours. HOW TO ORDER 32.768 kHz CXOMKHT and CXOXHT OSCILLATORS CXOMKHT 4 CXOMKHT CXOXHT S E “S” if special or custom design. Blank if Std. Supply Voltage 4 = 3.3 V Enable/Disable Option E or N HG = High Shock otherwise leave blank. SM5 Termination Blank = SM1 Gold Plated (Lead Free) SM5 = Solder Dipped (Lead Free) 32.768K, / Frequency K = kHz / 200 / Total Frequency Tolerance (in ppm)1 Calibration Tolerance @ 250C (in ppm) H Temp. Range: H = 250C to 2000C S = Customer Specified Temp. Range Frequency Stability over Temp. Range (in ppm) OR 50 Calibration Tolerance @ 250C (in ppm) / 175 Frequency Stability over Temp. Range (in ppm) / / Total Frequency Tolerance (in ppm) H Temp. Range: H = 250C to 2000C S = Customer Specified Temp. Range 10201 Rev C STATEK CORPORATION 512 N. MAIN ST., ORANGE, CA 92868 714-639-7810 FAX: 714-997-1256 www.statek.com