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| CXOMHT OSCILLATOR 32.768 kHz High Temperature/High Stability/Fast Start-up/High Shock DESCRIPTION For high temperature, high stability and fast start-up applications, Statek offers the AT crystal-based 32.768 kHz CXOMHT oscillator. This oscillator is designed to operate at temperatures up to 200OC with a total frequency stability of 200 parts-per-million, compared to about 1,000 ppm for a tuning fork-based 32.768 kHz oscillator. It is also offered in a high-shock version that features a 10,000 g shock survivability. Other features include fast start-up time (0.8 ms typical) and low current operation (500 A at 25OC.) FEATURES PACKAGE DIMENSIONS actual size side view High temperature operation up to 200OC Excellent stability over temperature Fast start-up High shock resistance Designed for surface mount applications using infrared, vapor phase, or epoxy mount techniques CMOS and TTL compatible Optional output enable/disable Low EMI emission Hermetically sealed ceramic package Full military testing available APPLICATIONS TYPICAL DIM inches 0.256 0.197 0.051 0.055 0.055 0.060 mm 6.50 5.00 1.30 1.40 1.40 1.52 A B C (SM1) C (SM3/SM5) D E MAXIMUM inches 0.263 0.204 0.055 0.063 0.065 0.070 mm 6.68 5.18 1.40 1.60 1.65 1.78 Industrial Downhole instrumentation Rotary shaft sensors Underground boring tools SUGGESTED LAND PATTERN PIN CONNECTIONS 1. Enable/Disable (E) or No Connection (N) 2. Ground 3. Output 4. VDD 10177 Rev A STATEK CORPORATION 512 N. MAIN ST., ORANGE, CA 92868 714-639-7810 FAX: 714-997-1256 www.statek.com SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS 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 Calibration Tolerance Frequency Tolerance Over Temperature (Total Tolerance)1 Supply Current (Typical) Output Load (CMOS) Start-up Time Rise/Fall Time Duty Cycle Aging, first year Aging, 1,000 Hrs Shock, survival Vibration, survival2 3.3 V + _ + _ + _ + _ + _ Supply Voltage VDD -0.3 V to 5.0 V Storage Temperature -55OC to 125OC Maximum Process Temperature 260OC, 20 seconds ENABLE/DISABLE OPTIONS (E/N) 10% 100 ppm, or tighter as required 100 ppm for 25OC to 150OC 150 ppm for 25OC to 175OC 200 ppm for 25OC to 200OC 500 A 15 pF 0.8 ms 85 ns/ 45 ns 40% MIN, 60% MAX 10 ppm MAX at 25OC 100 ppm MAX at 200OC Std: 3,000 g, 0.3 ms, 1/2 sine HG: 10,000 g, 0.3 ms, 1/2 sine 20 g, 10-2,000 Hz swept sine For the 32.768 kHz CXOMHT, Statek offers two enable/disable options: E and N. The E-version has a TriState 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. ENABLE/DISABLE OPTION E FUNCTION TABLE Enable (Pin 1 High*) Output Oscillator Current Frequency output Oscillates Disable (Pin 1 Low) High Z State Stops 500 A at 25 C O 3.2 A at 25OC * When PIN 1 is allowed to float, it is held by an internal pull-up resistor. PACKAGING OPTIONS Operating Temp Range -55OC up to 200OC 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 M, 15 pF load. CXOMHT - Tray Pack - 16 mm tape, 7" or 13" reels Per EIA 481 (see Tape and Reel data sheet # 10109) HOW TO ORDER 32.768 kHz CXOMHT OSCILLATORS CXOMHT 4 S "S" if special or custom design. Blank if Std. Supply Voltage 4 = 3.3 V E Enable/Disable Option E or N SM1 Termination Blank = SM1 Gold Plated (Lead Free) SM5 = Solder Dipped (Lead Free) 32.768 kHz, Frequency K = kHz Calibration Tolerance @ 250C (in ppm) / / 200 Total Frequency Tolerance (in ppm)1 / H Temp. Range: H = 250C to 2000C S = Customer Specified Temp. Range HG = High Shock otherwise leave blank. 30 OR / Frequency Stability over Temp. Range (in ppm) 170 / Total Frequency Tolerance (in ppm) / H Temp. Range: H = 250C to 2000C S = Customer Specified Temp. Range Calibration Tolerance @ 250C (in ppm) Frequency Stability over Temp. Range (in ppm) 10177 Rev A STATEK CORPORATION 512 N. MAIN ST., ORANGE, CA 92868 714-639-7810 FAX: 714-997-1256 www.statek.com |
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