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AM1808AZCED3 Datasheet(PDF) 185 Page - Texas Instruments |
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AM1808AZCED3 Datasheet(HTML) 185 Page - Texas Instruments |
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185 / 264 page ![]() tr tf VCRS 90% VOH 10% VOL USB_DM USB_DP tper − tjr AM1808 www.ti.com SPRS653A – FEBRUARY 2010 – REVISED APRIL 2010 6.20.1 USB0 [USB2.0] Electrical Data/Timing Table 6-91. Switching Characteristics Over Recommended Operating Conditions for USB0 [USB2.0] (see Figure 6-44) 1.3V, 1.2V, 1.1V, 1.0V LOW SPEED FULL SPEED HIGH SPEED NO. PARAMETER UNIT 1.5 Mbps 12 Mbps 480 Mbps MIN MAX MIN MAX MIN MAX 1 tr(D) Rise time, USB_DP and USB_DM signals(1) 75 300 4 20 0.5 ns 2 tf(D) Fall time, USB_DP and USB_DM signals(1) 75 300 4 20 0.5 ns 3 trfM Rise/Fall time, matching(2) 80 120 90 111 – – % 4 VCRS Output signal cross-over voltage(1) 1.3 2 1.3 2 – – V 5 tjr(source)NT Source (Host) Driver jitter, next transition 2 2 (3)ns tjr(FUNC)NT Function Driver jitter, next transition 25 2 (3) ns 6 tjr(source)PT Source (Host) Driver jitter, paired transition(4) 1 1 (3) ns tjr(FUNC)PT Function Driver jitter, paired transition 10 1 (3) ns 7 tw(EOPT) Pulse duration, EOP transmitter 1250 1500 160 175 – – ns 8 tw(EOPR) Pulse duration, EOP receiver 670 82 – ns 9 t(DRATE) Data Rate 1.5 12 480 Mb/s 10 ZDRV Driver Output Resistance – – 40.5 49.5 40.5 49.5 Ω 11 ZINP Receiver Input Impedance 100k 100k - - Ω (1) Low Speed: CL = 200 pF, Full Speed: CL = 50 pF, High Speed: CL = 50 pF (2) tRFM = (tr/tf) x 100. [Excluding the first transaction from the Idle state.] (3) For more detailed information, see the Universal Serial Bus Specification Revision 2.0, Chapter 7. Electrical. (4) tjr = tpx(1) - tpx(0) Figure 6-44. USB2.0 Integrated Transceiver Interface Timing Copyright © 2010, Texas Instruments Incorporated Peripheral Information and Electrical Specifications 185 Submit Documentation Feedback Product Folder Link(s): AM1808 |
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