USB3343 datasheet(5/92 Pages) MICROCHIP

Teilenummer	USB3343

Bauteilbeschribung	Enhanced Single Supply Hi-Speed USB ULPI Transceiver

PDF	92 Pages

Scroll/Zoom	100%

Hersteller	MICROCHIP [Microchip Technology]

Direct Link	http://www.microchip.com

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 2009-2018 Microchip Technology Inc.

DS00002646A-page 5

USB334x

In USB audio mode, a switch connects the DP pin to the SPK_R pin, and another switch connects he DM pin to the

SPK_L pin. These switches are shown in the lower left-hand corner of .The USB334x can be configured to enter USB

audio mode as described in Section 6.7.2, "USB Audio Mode (USB3341 and USB3346)," on page 61. In addition, these

switches are on when the RESETB pin of the USB334x is asserted. The USB audio mode enables audio signaling from

a single USB port of connection, and the switches may also be used to connect Full Speed USB from another trans-

ceiver to the USB connector.

FIGURE 1-1:

BLOCK DIAGRAM (USB3341, USB3346, AND USB3347)

OTG

USB

DP/DM

Switch

Hi-Speed

USB

Transceiver

ULPI

Interface

ULPI

Registers

and State

Machine

BIAS

Low Jitter

Integrated

PLL

Integrated

Power

Management

VBUS

RBIAS

REFCLK

DATA[7:0]

RESETB

VDD18

VDD33

VBAT

DIR

NXT

STP

CLKOUT

OVP

BC 1.1

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