USB3450 Standard Microsystems Corporation, USB3450 Datasheet - Page 9
USB3450
Manufacturer Part Number
USB3450
Description
Hi-speed USB HOST OR Device PHY WITH Utmi+interface
Manufacturer
Standard Microsystems Corporation
Datasheet
1.USB3450.pdf
(40 pages)
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Hi-Speed USB Host or Device PHY With UTMI+ Interface
Datasheet
Chapter 2 Functional Overview
SMSC USB3450
LINESTATE[1:0]
XCVRSEL[1:0]
OPMODE[1:0]
SUSPENDN
HOSTDISC
RXACTIVE
RXERROR
TERMSEL
TXREADY
DATA[7:0]
TXVALID
CLKOUT
RESET
HOST
VDD3.3
The USB3450 is a highly integrated USB transceiver system. It contains a complete Hi-Speed PHY
with the UTMI+ industry standard interface to support fast time to market for a USB controller. The
USB3450 is composed of the functional blocks shown in
Regulator &
Internal
Digital
UTMI+
POR
Figure 2.1 USB3450 Block Diagram
USB3450
HS XCVR
XTAL &
DATASHEET
FS/LS
XCVR
24 MHz
PLL
XTAL
9
Resistors
Gen.
Bias
Figure 2.1
below.
VDD3.3
RBIAS
DM
DP
Revision 0.1 (05-11-05)
Connector
Mini-AB
USB
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