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AS8510 데이터시트(PDF) 14 Page - ams AG |
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AS8510 데이터시트(HTML) 14 Page - ams AG |
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14 / 46 page ![]() www.austriamicrosystems.com/AS8510 Revision 3.4 14 - 46 AS8510 Datasheet - Electrical Character i s t ics 6.4.6 CMREF Circuit (VCM) 6.4.7 Internal AVDD Power-on Reset 6.4.8 Internal DVDD Power-on Reset 6.4.9 Low Speed Oscillator Table 20. CMREF Circuit Symbol Parameter Min Typ Max Units VVCM Output voltage 1.6 1.7 1.8 V CL Load capacitance 100 nF Table 21. Internal AVDD Power-on Reset Symbol Parameter Min Typ Max Units VPORHIA Power On Reset Threshold 2.2 2.4 2.6 V tPORA POR time - The duration from Power ON till the time, internal Power On Reset signal goes HIGH 1 1. POR pulse is always longer than tPORA whatever the slope of the supply. 1µs IPORA Current consumption in POR block 2 2. I PORA can not be switched off. 1.5 µA Table 22. Internal DVDD Power-on Reset Symbol Parameter Min Typ Max Units VPORHID Power On Reset Threshold 2.2 2.4 2.7 V VHYST Hysteresis 1 1. VPORLO = VPORHI - VHYST where VPORLO is the lower threshold of POR. 0.20.250.4 V tPORD POR time - The duration from Power ON till the time, internal Power On Reset signal goes HIGH 2 2. VPORLO = VPORHI - VHYST where VPORLO is the lower threshold of POR. 1µs IPORD Current 3 3. IPORD can not be switched off. 1.5 µA Table 23. Low Speed Oscillator Symbol Parameter Min Typ Max Units fLS Frequency 262.144 kHz fLS_ACC Accuracy ± 7 % ILS Supply current 5 µA |
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