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ST7538 数据表(PDF) 8 Page - STMicroelectronics |
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ST7538 数据表(HTML) 8 Page - STMicroelectronics |
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8 / 30 page ![]() ST7538 8/30 ZC(LOW) Zero Crossing Detection Low Threshold -45 -5 mV ZC(HIGH) Zero Crossing Detection High Threshold 5 +45 mV ZC(OFFSET) Zero Crossing Offset -20 +20 mV Operational Amplifier COUT(Sync) Max Sync Current 15 28 45 mA COUT(Source) Max Source Current -30 -20 -10 mA CIN(Offset) Input Terminals OFFSET -38 +38 mV GBWP Gain Bandwidth Product 6 7 9 MHz Serial Interface Ts Setup Time see figure 3, 5, 6, 7 & 8 5 ns TH Hold Time see figure 3, 5, 6, 7 & 8 2 ns TCR CLR/T vs. REG_DATA or RxTx see figure 3, 5, 6, 7 & 8 TB/4 TCC CLR/T vs. CLR/T see figure 3, 5, 6, 7 & 8 TB 2*TB TDS Setup Time see figure 3, 5, 6, 7 & 8 TB/4 TB/2 TDH Hold Time see figure 3, 5, 6, 7 & 8 TB/4 TB/2 TCRP see figure 4 TH TB/2 ELECTRICAL CHARACTERISTCS (continued) (AVcc = DVcc = +5V, PAVcc =+9 V, PAVss, SGND = DVss = 0V,-40°C ≤ Tamb ≤ 85°C, unless otherwise specified) Symbol Parameter Test Condition Min. Typ. Max. Unit |
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