TUSB1106RTZR datasheet(14/34 Pages) TI

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pu(3.3)

SPEED

SOFTCON

RCV

VPO/VO

1.65Vto3.6V

System ASIC

D–

D+

1.5kW

BUS

CC(5.0)

reg(3.3)

SUSPND

MODE

(A)

VMO/FSE0

CC(I/O)

0.1µF

3.3V

33 W

0.1µF

TUSB1105/1106

GND

Peripheral-Side (Full-Speed) Regulator Bypass Mode

TUSB1105, TUSB1106

ADVANCED UNIVERSAL SERIAL BUS TRANSCEIVERS

SCAS818D – MAY 2006 – REVISED FEBRUARY 2008

Only for TUSB1105

Figure 8. Peripheral-Side (Full-Speed) Regulator Bypass Mode

This mode is applicable when there is a 3.3-V supply already available on the board. The VBUS pin of the USB

connector, if left unused at the peripheral side, should be terminated with a 0.1-

µF capacitor. While operating at

full speed, the 1.5-k

Ω resistor must be connected between the D+ line and VPU(3.3) or an external 3.3-V supply.

When the VCC(5.0) and the Vreg(3.3) are connected together, the device operates at regulator bypass mode. This

enables power savings since the regulator is turned off.

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Product Folder Link(s): TUSB1105 TUSB1106

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