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TUSB1105 Datasheet(PDF) 18 Page - Texas Instruments |
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TUSB1105 Datasheet(HTML) 18 Page - Texas Instruments |
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18 / 30 page ![]() www.ti.com V pu(3.3) V CC(5.0) V reg(3.3) 1.65Vto 3.6V System ASIC 15kW V BUS =5V D– D+ SPEED SOFTCON RCV VPO/VO VP VM OE SUSPND MODE (A) VMO/FSE0 V CC(I/O) 0.1µF V CC 33 W 33 W 0.1µF 0.1µF 15kW TUSB1105/1106 GND GND GND GND GND GND GND Host-Side (VCC(5.0) Supplied From VBUS Pin) TUSB1105, TUSB1106 ADVANCED UNIVERSAL SERIAL BUS TRANSCEIVERS SCAS818C – MAY 2006 – REVISED DECEMBER 2006 APPLICATION INFORMATION (continued) A. Only for TUSB1105 Figure 12. Host-Side (VCC(5.0) Supplied From VBUS Pin) If there is no 3.3-V supply on board, the VBUS supply can support the USB-side power needs. The on-chip regulator generates the 3.3-V internal supply rail, which is required for the USB signal levels. The logic-side I/Os can operate at any voltage range from 1.65 V to 3.6 V. Powering VCC(5.0) through the VBUS port of the USB connector realizes significant power saving for portable applications, such as cell phones, PDAs, etc. In this operating mode, the ICC(5.0) current is fed from the external source. The USB-side power consumption, ICC(5.0) is 4 mA, as opposed to logic-side ICC(IO) of 1 mA under full-speed operation. 18 Submit Documentation Feedback |
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