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LC823450 датащи(PDF) 67 Page - ON Semiconductor |
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LC823450 датащи(HTML) 67 Page - ON Semiconductor |
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67 / 112 page ![]() LC823450 www.onsemi.com 67 Table 29. USB2.0 PHY CHARACTERISTICS (continued) (TA = 25°C, VDD1 = 1.2 V, AVDDUSBPHY1 = DVDDUSBPHY1 = 1.2 V, AVDDUSBPHY2 = 3.3 V) Item Unit Max Min Condition Symbol HIGH−SPEED DATA TIMINGS: INPUT CAPACITANCE FOR LOW−SPEED: SAME AS FULL−SPEED TERMINATIONS IN LOW−SPEED: SAME AS FULL−SPEED DRIVER CHARACTERISTICS IN LOW−SPEED: Rise Time (10% − 90%) TLR 75 300 ns Fall Time (10% − 90%) TLF 75 300 ns Difference Rise and Fall Time Matching TLRFM 80 125 % TERMINATIONS USED AS HOST SIDE (INTERNAL SIGNAL RPDPEN = 1, RPDMEN = 1): Bus Pull−down Resistor on Downstream Facing Port RPD 14.25 24.80 k Ω *Each electrical specification is the results of simulation. Figure 10. Differential Input Sensitivity Range for Full−speed −1.0 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0 3.2 4.6 ・・・ ・・・ Differential Input Voltage Differential Output Crossover Voltage Range Figure 11. Differential Input Sensitivity Range for High−speed Level1 Unit Interval 0% 100% Point4 Point5 Point6 Level2 Differential +400 mV Point2 Point1 Point3 −400 mV 0 Volts Differential Differential |
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