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AD9528BCPZ датащи(PDF) 14 Page - Analog Devices |
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AD9528BCPZ датащи(HTML) 14 Page - Analog Devices |
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14 / 67 page ![]() AD9528 Data Sheet Rev. D | Page 14 of 67 SERIAL CONTROL PORT—I2C MODE Table 18. Parameter Symbol Min Typ Max Unit Test Conditions/Comments SDA, SCL VOLTAGE When inputting data Input Logic 1 0.7 × VDD V Input Logic 0 0.3 × VDD V Input Current −10 +10 µA Input voltage between 0.1 × VDD and 0.9 × VDD Hysteresis of Schmitt Trigger Inputs 0.015 × VDD V SDA When outputting data Output Logic 0 Voltage at 3 mA Sink Current 0.2 V Output Fall Time from VIHMIN to VILMAX 20 + 0.1 CB1 250 ns Bus capacitance from 10 pF to 400 pF TIMING All I2C timing values are referred to VIHMIN (0.3 × VDD) and VILMAX levels (0.7 × VDD) Clock Rate (SCL, fI2C) 400 kHz Bus Free Time Between a Stop and Start Condition tIDLE 1.3 µs Setup Time for a Repeated Start Condition tSET; STR 0.6 µs Hold Time (Repeated) Start Condition tHLD;STR 0.6 µs After this period, the first clock pulse is generated Setup Time for a Stop Condition tSET; STP 0.6 µs Low Period of the SCL Clock tLOW 1.3 µs High Period of the SCL Clock tHIGH 0.6 µs SCL, SDA Rise Time tRISE 20 + 0.1 CB1 300 ns SCL, SDA Fall Time tFALL 20 + 0.1 CB1 300 ns Data Setup Time tSET; DAT 100 ns Data Hold Time tHLD; DAT 0 ns Capacitive Load for Each Bus Line CB1 400 pF 1 CB is the capacitance of one bus line in picofarads (pF). |
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