D1+

D1–

D2+

D2–

Control

D+

D–

S

OE

TS3USB30

SCDS237F – AUGUST 2007 – REVISED AUGUST 2015

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8 Detailed Description

8.1 Overview

The TS3USB30 is a high-bandwidth switch specially designed for the switching and isolating of high-speed USB

2.0 signals in systems with limited USB I/Os. The wide bandwidth (955 MHz) of this switch allows signals to pass

with minimum edge and phase distortion. The device multiplexes differential outputs from a USB host device to

one of two corresponding outputs or from two different hosts to one corresponding output. The switch is

bidirectional and offers little or no attenuation of the high-speed signals at the outputs. It is designed for low bit-

to-bit skew and high channel-to-channel noise isolation, and is compatible with various standards, such as high-

speed USB 2.0 (480 Mbps).

8.2 Functional Block Diagram

8.3 Feature Description

The TS3USB30 has a bus-switch enable pin, OE, that can place the signal paths in high impedance. This allows

the user to isolate the bus when it is not in use and consume less current.

8.4 Device Functional Modes

The device functional modes are shown in Table 1.

Table 1. Truth Table

S

OE

FUNCTION

X

H

Disconnect

L

L

D = D1

H

L

D = D2

12

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