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TUSB542RWQR Datasheet(PDF) 7 Page - Texas Instruments |
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TUSB542RWQR Datasheet(HTML) 7 Page - Texas Instruments |
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7 / 23 page  tr 80% 20% tf tidleExit IN+ Vcm IN± tidleEntry VEID_TH OUT+ Vcm OUT± IN tDIFF_DLY OUT tDIFF_DLY 7 TUSB542 www.ti.com SLLSER3B – DECEMBER 2015 – REVISED JANUARY 2016 Product Folder Links: TUSB542 Submit Documentation Feedback Copyright © 2015–2016, Texas Instruments Incorporated 6.9 Timing Requirements MIN NOM MAX UNIT tIDLEEntry Delay from U0 to electrical idle. See Figure 2 6 ns tIDLEExit_U1 U1 exit time: break in electrical idle to the transmission of LFPS See Figure 2 6 ns tIDLEExit_U2U3 U2/U3 exit time: break in electrical idle to transmission of LFPS From the time when the far end terminations detected for both ports 1 µs tIDLEExit_DISC U2/U3 exit time: break in electrical idle to transmission of LFPS From the time when the far end terminations detected for both ports 2 µs tDIFF-DLY Differential propagation delay. See Figure 1 225 ps tPWRUPACTIVE Time when VCC reach 80% to device active 30 ms 6.10 Switching Characteristics over operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT tTX-RISE-FALL Transmitter rise/fall time (see Figure 3) 20% to 80% of differential output. At device pins. 80 ps tRF-MISMATCH Transmitter rise/fall mismatch 20% to 80% of differential output. At device pins 2.3 ps Figure 1. Propagation Delay Timing Figure 2. Electrical Idle Mode Exit and Entry Delay Timing Figure 3. Output Rise and Fall Times |
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