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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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TMS320VC5507 датащи(PDF) 103 Page - Texas Instruments |
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TMS320VC5507 датащи(HTML) 103 Page - Texas Instruments |
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103 / 108 page  IC25 IC23 IC19 IC18 IC22 IC27 IC20 IC21 IC17 IC18 IC28 Stop Start Repeated Start Stop SDA SCL IC16 IC26 IC24 D- V CRS D+ t +Jitter period 90% 10% U1 U2 V OL V OH SM320VC5507-EP www.ti.com SPRS613 – SEPTEMBER 2009 Figure 5-38. I2C Transmit Timings 5.17 Universal Serial Bus (USB) Timings Table 5-41 assumes testing over recommended operating conditions (see Figure 5-39 and Figure 5-40). Table 5-41. Universal Serial Bus (USB) Characteristics CVDD = 1.2 V CVDD = 1.6 V CVDD = 1.35 V NO. FULL SPEED FULL SPEED UNIT 12Mbps 12Mbps MIN TYP MAX MIN TYP MAX U1 tr Rise time of DP and DN signals(1) 4 20 4 20 ns U2 tf Fall time of DP and DN signals(1) 4 20 4 20 ns tRFM Rise/Fall time matching(2) 90 111.11 90 111.11 % VCRS Output signal cross–over voltage(1) 1.3 2 1.3 2 V tjr Differential propagation jitter(3) (4) -2 2 -2 2 ns fop Operating frequency (full speed mode) 12 12 Mb/s U3 Rs(DP) Series resistor 24 24 W U4 Rs(DN) Series resistor 24 24 W U5 Cedge(DP) Edge rate control capacitor 22 22 pF U6 Cedge(DN) Edge rate control capacitor 22 22 pF (1) CL = 50 pF (2) (tr/tf) x 100 (3) tpx(1) − tpx(0) (4) USB PLL is susceptible to power supply ripple, refer to recommend operating conditions for allowable supply ripple to meet the USB peak-to-peak jitter specification. Figure 5-39. USB Timings Copyright © 2009, Texas Instruments Incorporated Electrical Specifications 103 Submit Documentation Feedback Product Folder Link(s): SM320VC5507-EP |
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