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V

(3.3)

PU

SPEED

SOFTCON

RCV

VPO/VO

VP

VM

1.65Vto3.6V

System ASIC

D–

D+

1.5kW

V

BUS

=5V

V

CC(5.0)

OE

V

reg(3.3)

SUSPND

MODE

(A)

VMO/FSE0

V

CC(I/O)

0.1µF

0.1µF

0.1µF

5V

V

CC

33 W

33 W

TUSB1105/1106

GND

GND

GND

GND

GND

Peripheral-Side (Low-Speed) Internal Regulator Mode

TUSB1105, TUSB1106

ADVANCED UNIVERSAL SERIAL BUS TRANSCEIVERS

SCAS818C – MAY 2006 – REVISED DECEMBER 2006

APPLICATION INFORMATION (continued)

Figure 11. Peripheral-Side (Low-Speed) Internal Regulator Mode

A.

Only for TUSB1105

While operating at full speed, the 1.5-k

Ω resistor must be connected between the D+ line and the V

external 3.3-V supply. If there is no 3.3-V supply on the board, the internal regulator can be used to provide the

the range of 0.1

µF.

17

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