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ADuCM350BBCZ датащи(PDF) 10 Page - Analog Devices |
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ADuCM350BBCZ датащи(HTML) 10 Page - Analog Devices |
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10 / 41 page ![]() Data Sheet ADuCM350 Rev. A | Page 9 of 40 Universal Serial Bus Regulator Specifications Table 15. Universal Serial Bus Regulator Specifications Parameter Min Typ Max Unit Test Conditions/Comments SERIAL BUS REGULATOR Input Voltage Range 3.6 5.25 V Regulated Output Voltage 3.2 3.4 V Dropout 440 mV 40 mA continuous current Regulation Line 0.0043 %/V 4.5 V to 5.5 V Load 0.0093 %/mA @ 5 V, 220 nF ceramic decoupling capacitor Power-Up Time 37 µs Universal Serial Bus DC Specifications Table 16. Universal Serial Bus DC Specifications Parameter Min Typ Max Unit Test Conditions/Comments RECEIVER Single-Ended Input Voltage (Driven) High 2.0 V Low 0.8 V Differential Receiver Input Common Mode 0.8 2.5 V Sensitivity 0.2 V V(USB DP) − V(USB DM) TRANSMITTER Output Voltage Low (VOL) 0 0.3 V Pull-up resistor asserted on the USB pin, USB DP, RPU to AVDD High (VOH) 2.8 3.6 V Pull-down resistor asserted on USB DP and USB DM (15 kΩ to GND) Driver Output Impedance 28 44 Ω RDRIVER + RSERIES Term Series Resistor 40 Ω Pull-Up Resistor (D+ High) 1.425 1.5 3.095 kΩ Termination voltage = USB regulator voltage Pull-Up Resistor (D+ Low) 0.9 1.575 kΩ Termination voltage = USB regulator voltage Pull-Down Resistors 14.25 15 24.8 kΩ Universal Serial Bus AC Specifications Meeting USB 2.0 compliance electrical tests. Table 17. Universal Serial Bus AC Specifications Parameter Min Typ Max Unit Test Conditions/Comments FULL SPEED DRIVER TIMING CLOAD = 50 pF Signaling Rate 11.988 12 MHz Output Time Rise 4 20 ns VOH − VOL (10% to 90%), CLOAD = 50 pF Fall 4 20 ns VOH − VOL (10% to 90%), CLOAD = 50 pF Rise and Fall Matching 90 111.1 % Exclude transition from idle Output Voltage Crossover 1.3 2.0 V Exclude transition from idle FULL SPEED JITTER CLOAD = 50 pF Driver Jitter Generated −2 +2 ns Next transitions −1 +1 ns Paired transitions Load Capacitance 50 pF Testing slew rate |
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