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32.7680LSMA025UIT Datasheet(PDF) 1 Page - EUROQUARTZ limited |
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32.7680LSMA025UIT Datasheet(HTML) 1 Page - EUROQUARTZ limited |
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1 / 1 page EURO QUARTZ EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE Tel: +44 (0)1460 230000 Fax: +44 (0)1460 230001 Email: info@euroquartz.co.uk www.euroquartz.co.uk Low Power - Low Frequency SMD Oscillator DESCRIPTION LSM series oscillators are precision surface mount oscillators with a frequency range from 30kHz to 200kHz. The part comprises of a hermetically sealed crystal with a hybrid circuit sealed in a ceramic package with a Kovar lid. Full MIL testing is available. Low current consumption, low frequency from 30kHz Low profile, miniature SMD package Full military testing available Testing to MIL-PRF-55310 available LSM Series Oscillators Frequency Range****: 30kHz to 200kHz (32.768kHz) Supply Voltage*: 3.3 or 5.0 Volts ±10% Calibration Tolerance** Code A: ±0.001% (±10ppm) Code B: ±0.0025% Code C: ±0.01% Frequency Stability*** 0° to +50°C: ±0.0025% typical (±25ppm) ±0.004% maximum (±40ppm) -20° to +40°C: ±0.007% typical (±70ppm) ±0.01% maximum (±100ppm Voltage Coefficient ±1ppm/V typical ±3ppm/V maximum Ageing: ±1ppm/year typical ±3ppm/year maximum Shock: 1000g, 1ms, ½ sine, ±3ppm max. Vibration: 10g rms, 10-2000Hz, ±3ppm max. Frequency Change vs. Output Load Change: ±1ppm maximum Operating Temperature: -10° to +70°C Commercial -40° to +85°C Industrial -55° to +125°C Military Output Voltage (5.0V supply) HIGH: 4.8V minimum, 4.95V typical LOW: 0.2V maximum, 0.05V typical Rise/Fall Times: 12ns typical Symmetry: 40/60% maximum, 45/55% typical Supply Current 5.0V supply: 15 mA max., 8.3 mA typical 3.3V supply: 10 mA max., 5.5 mA typical Packaging: Tray pack (standard) 16mm tape, 17.8cm or 33cm reels SPECIFICATION OUTLINE & DIMENSIONS Example: 32.7680kHz LSMA050UMTA PART NUMBERING Frequency Series Designation LSM Calibration Tolerance (see table above) Stability* 100 = ±100ppm 50 = ±50ppm 25 = ±25ppm Output Universal (CMOS) Operating Temp. Range C = Commercial I = Industrial M = Military Pad 1 Function T = Enable/Disable Blank = not connected Supply Voltage** Blank = 5.0 Volts A = 3.3 Volts * For other stability requirements enter figure required. ** For other supply voltage enter required voltage. P - Power Down: When Pad 1 is LOW the oscillator stops running T - Enable/Disable: When Pad 1 is LOW the internal oscillator continues to run but the output (Pad 3) is in a high impedance (Z) state. Power Down: Disabled current consumption low, recovery delayed. Enable/Disable: Disabled current consumption lower than normal, Recovery immediate. Option Power Down P Enable/Disable T Not Connected Blank LOW High Z HIGH Frequency output LOW High Z HIGH Frequency output NC Frequency output ENABLE/DISABLE, POWER DOWN, NOT CONNECTED Specifying Code Pad 1* Pad 3 * Normally HIGH (internal pull-up resistor) ENABLE/DISABLE vs. POWER DOWN Notes: * Contact factory for lower supply voltages ** Tighter tolerances avialable *** Does not include calibration tolerance. Positive variations are small compared to negative variations. **** Contact factory for frequencies other than 32.7680kHz |
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