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参数资料
| 型号： | PACUSB-U3 |
| 元件分类： | 数据传输滤波器 |
| 英文描述： | 2 FUNCTIONS, 5.5 V, DATA LINE FILTER |
| 封装： | SC70-6 |
| 文件页数： | 1/7页 |
| 文件大小： | 119K |
| 代理商： | PACUSB-U3 |
2006 California Micro Devices Corp. All rights reserved.
05/01/06
490 N. McCarthy Blvd., Milpitas, CA 95035-5112
●
Tel: 408.263.3214
●
Fax: 408.263.7846
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www.cmd.com
1
PACUSB-U1/U2/U3
Upstream USB Port Terminator
Features
One upstream USB port terminator, EMI filter and
transient overvoltage protector in a single surface-
mount package
Compact SC70 or SOT23 package saves board
space and lowers manufacturing costs compared
to discrete solutions
ESD protection to
±30kV contact discharge per
MIL-STD-883D, method 3015
ESD protection to
±15kV contact discharge per
IEC 61000-4-2 international standard
Lead-free version available
Applications
ESD protection and termination of USB port
All USB peripherals (PC printers, scanners,
zip drives, etc.)
PDAs / handheld PCs
Digital cameras
Wireless Handets
MP3 Players
Cable Modems
Product Description
The PACUSB-U1, PACUSB-U2, and PACUSB-U3 are
single-channel USB upstream-port termination net-
works.
The PACUSB-U1/U2/U3 integrate EMI/RFI filter com-
ponents R1 and C1, as recommended by the USB
specification. Because these are upstream USB
devices, they are terminated with a single 1.5k
Ωpull-up
resistor to V3.3 (R2).
There are three options for the value of the series
resistor R1:
For PACUSB-U1, R1=15
Ω
For PACUSB-U2, R1=33
Ω
For PACUSB-U3, R1=22
Ω
This series resistance plus the USB driver output resis-
tance must be close to the USB cable’s characteristic
impedance of 45
Ω (90Ω balanced) to minimize trans-
mission line reflections.
In addition, these parts provide a very high level of pro-
tection for sensitive electronic components that may be
subjected to electrostatic discharge (ESD). The input
and output pins are designed and characterized to dis-
sipate ESD strikes of
±15kV safely, a level well beyond
the maximum requirements of the IEC 61000-4-2 inter-
national standard.
Using the MIL-STD-883D (Method 3015) specification
for Human Body Model (HBM) ESD, all pins are pro-
tected for contact discharges to greater than
±30kV.
The PACUSB-U1/U2/U3 is housed in either a 6-pin
SC70 or 6-pin SOT23 package and is available with
optional lead-free finishing.
Vcc
SC70 6
R1
GND
IN1
OUT 1
OUT 2
IN2
1
2
3
C1
R1
R2
6
5
4
D1_c
V3.3
D2_c
GND
D1_i
D2_i
Electrical Schematic
i = input
c = connector
相关PDF资料 |
PDF描述 |
|---|---|
| PACUSB-U3Y6 | 2 FUNCTIONS, 5.5 V, DATA LINE FILTER |
| PACUSB-U3Y6R | 2 FUNCTIONS, 5.5 V, DATA LINE FILTER |
| PACUSB-U3R | 2 FUNCTIONS, 5.5 V, DATA LINE FILTER |
| PACUSB-U2 | 2 FUNCTIONS, 5.5 V, DATA LINE FILTER |
| PACUSB-U2Y6 | 2 FUNCTIONS, 5.5 V, DATA LINE FILTER |
相关代理商/技术参数 |
参数描述 |
|---|---|
| PACUSB-U3R | 功能描述:接口 - 专用 USB w/ ESD 22 Ohms RoHS:否 制造商:Texas Instruments 产品类型:1080p60 Image Sensor Receiver 工作电源电压:1.8 V 电源电流:89 mA 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:BGA-59 |
| PACUSB-U3Y6 | 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:Upstream USB Port Terminator |
| PACUSB-U3Y6R | 功能描述:接口 - 专用 USB w/ ESD 22 Ohms RoHS:否 制造商:Texas Instruments 产品类型:1080p60 Image Sensor Receiver 工作电源电压:1.8 V 电源电流:89 mA 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:BGA-59 |
| PACUSBVB-D1 | 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:USB Downstream Port Terminator with VBUS ESD Protection |
| PACUSBVB-D1/D2/D3 | 制造商:CALMIRCO 制造商全称:California Micro Devices Corp 功能描述:USB Downstream Port Terminator with VBUS ESD Protection |
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