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AS3930 датащи(PDF) 8 Page - ams AG |
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AS3930 датащи(HTML) 8 Page - ams AG |
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8 / 32 page ![]() www.ams.com/LF-Receiver/AS3930 Revision 1.5 8 - 32 AS3930 Datasheet - Electrical Character i s t ics Input Sensitivity SENS Input Sensitivity With 125kHz carrier frequency, chip in default mode, 4 half bits burst + 4 symbols preamble and single preamble detection 100 µVrms Channel Settling Time TSAMP Amplifier settling time 250 µs Crystal Oscillator FXTAL Frequency Crystal dependent 32.768 kHz TXTAL Start-up Time 1 s IXTAL Current consumption 1 µA External Clock Source IEXTCL Current consumption 1 µA RC Oscillator FRCNCAL Frequency If no calibration is performed 27 32.768 42 kHz FRCCAL32 If calibration with 32.768 kHz reference signal is performed 31 32.768 34.5 kHz FRCCALMAX Maximum achievable frequency after calibration 35 kHz FRCCALMIN Minimum achievable frequency after calibration 30 kHz TCALRC Calibration time 65 Periods of reference clock IRC Current consumption 200 nA Table 5. Electrical System Specifications Symbol Parameter Conditions Min Typ Max Units |
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