參數(shù)資料
型號(hào)： USBUFXXW6
廠商： 意法半導(dǎo)體
英文描述： EMI FILTER AND LINE TERMINATION FOR USB UPSTREAM PORTS
中文描述： EMI濾波器和線的USB上行端口終止
文件頁(yè)數(shù)： 1/9頁(yè)
文件大小： 98K
代理商： USBUFXXW6
1/9
USBUFxxW6
EMI FILTER AND LINE TERMINATION
FOR USB UPSTREAM PORTS
March 2002 - Ed: 3A
A.S.D.
SOT323-6L
FUNCTIONAL DIAGRAM
TM: ASD and TRANSIL are a trademarks of STMicroelectronics.
EMI Filter and line termination for USB upstream
ports on:
- USB Hubs
- PC peripherals
APPLICATIONS
I
Monolithic device with recommended line termi-
nation for USB upstream ports
I
Integrated Rt series termination and Ct bypass-
ing capacitors.
I
Integrated ESD protection
I
Small package size
DESCRIPTION
FEATURES
The USB specification requires upstream ports
to be terminated with pull-up resistors from the
D+
and
D-
lines
implementation of USB systems, the radiated
and conducted EMI should be kept within the
required
levels
as
regulations. In addition to the requirements of
termination
and
EMC
computing devices are required to be tested for
ESD susceptibility.
The USBUFxxW6 provides the recommended line
termination while implementing a low pass filter to
limit EMI levels and providing ESD protection
which exceeds IEC61000-4-2 level 4 standard.
The device is packaged in a SOT323-6L which is
the smallest available lead frame package (50%
smaller than the standard SOT23).
to
Vbus.
On
the
stated
by
the
FCC
compatibility,
the
I
EMI / RFI noise suppression
I
Required line termination for USB upstream
ports
I
ESDprotectionexceedingIEC61000-4-2level4
I
High flexibility in the design of high density
boards
I
Tailored to meet USB 1.1 standard
BENEFITS
3.3V
Rp
Ct
Rt
Ct
Rt
D1
Grd
D2
D4
D3
3.3V
Rt
Rp
Ct
CODE 01
33
1.5k
47pF
CODE 02
22
1.5k
47pF
Tolerance
±10%
±10%
±20%
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USBULC6-2F3_08 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:2-line IPAD, ultra low capacitance protection for high speed USB
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