USB3300 SMSC Corporation, USB3300 Datasheet - Page 46

• Manufacturer Part Number: USB3300
• Description: Hi-Speed USB Host
• Manufacturer: SMSC Corporation

Chapter 7 Application Notes
Revision 1.06 (07-19-06)
7.1
7.2
C
Host
Device
OTG Device
C
Connector
(Standard
VBUS
VBUS
or Mini)
USB
3.3 Volt
Supply
In addition to the 4.7uF bypass capacitor for VDD3.3 shown in
have an additional capacitor to ground, of value 0.01 or 0.1 uF (not shown for clarity). Approximately
equal numbers of each value should be used.
To support multiple ports a single USB3300 host can be combined with one of SMSC’s many hub
products to expand the number of ports. SMSC has 2-port, 3-port, 4-port, and 7-port hub designs which
can be used to expand the number of ports in a design.
Application Diagram
Multi-port Applications
100uF
1uF
1uF
Min
Supply
5 Volt
Host Only
6.5uF
10uF
Max
VDD3.3
Fault
Figure 7.1 USB3300 Application Diagram
VDD3.3
CPEN
VBUS
DM
DP
ID
DATASHEET
1
2
3
4
5
6
7
8
Hi-Speed USB Host, Device or OTG PHY with ULPI Low Pin Interface
46
Hi-Speed USB2
Hi-Speed USB2
32 Pin QFN
32 Pin QFN
ULPI PHY
ULPI PHY
USB3300
USB3300
GND FLAG
C
LOAD
Figure
C
24
23
22
21
20
19
18
17
LOAD
7.1, each VDD3.3 pin should
DATA0
DATA1
DATA2
DATA3
DATA4
DATA5
DATA6
DATA7
(MSB)
12
SMSC USB3300
ULPI Interface
to LINK
Datasheet