USB3320C-EZK Standard Microsystems (SMSC), USB3320C-EZK Datasheet - Page 73

• Manufacturer Part Number: USB3320C-EZK
• Description: USB PHY
• Manufacturer: Standard Microsystems (SMSC)

Specifications of USB3320C-EZK

• Lead Free Status / RoHS Status: Compliant

Highly Integrated Full Featured Hi-Speed USB 2.0 ULPI Transceiver
Datasheet
Chapter 8 Application Notes
SMSC USB3320
8.1
C
C
C
C
R
R
DESIGNATOR
REFERENCE
OUT
VBUS
BYP
DC_LOAD
VBUS
BIAS
Device
MODE
OTG
Host
The USB3320 requires few external components as shown in the application diagrams. The USB 2.0
Specification restricts the voltage at the VBUS pin to a maximum value of 5.25V. In some applications,
the voltage will exceed this voltage, and the USB3320 provides an integrated overvoltage protection
circuit. The overvoltage protection circuit works with an external resistor (R
at the VBUS pin, as described in
Following POR or hardware reset, the voltage at CLKOUT must not exceed V
Table
Application Diagram
2.2μF
See
System
dependent.
System
dependent.
1kΩ or 10kΩ
8.06kΩ (±1%)
4.4.
VALUE
Table 8.2
Table 8.2 Capacitance Values at VBUS of USB Connector
Table 8.1 Component Values in Application Diagrams
Bypass capacitor to ground (<1Ω ESR)
for regulator stability.
Capacitor to ground required by the USB
Specification. SMSC recommends <1Ω
ESR.
Bypass capacitor to ground. Typical
values used are 0.1 or 0.01 μF.
The USB connector housing may be AC-
coupled to the device ground.
Series resistor to work with internal
overvoltage protection.
10kΩ in device applications.
See
or OTG applications.
Series resistor to establish reference
voltage.
Table 5.7
MIN VALUE
120μF
1μF
1μF
Section
DATASHEET
DESCRIPTION
for required values in Host
5.6.2.6.
73
NOTES
Place as close as possible to the
transceiver.
Place near the USB connector.
Place as close as possible to the
transceiver.
Industry convention is to ground
only the host side of the cable
shield.
See
information regarding power
dissipation.
See
regarding power dissipation.
Section 5.6.2.6
Section 5.3
MAX VALUE
VBUS
6.5μF
10μF
) to lower the voltage
IH_ED
Revision 1.0 (07-14-09)
for information
as provided in
for