參數(shù)資料
型號: PACUSB-U2
廠商: California Micro Devices Corporation
英文描述: Upstream USB Port Terminator
中文描述: 上行USB端口終結(jié)者
文件頁數(shù): 5/7頁
文件大小: 116K
代理商: PACUSB-U2
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
www.cmd.com
5
PACUSB-U1/U2/U3
Application Information
The PACUSB-U1/U2/U3 is targeted for upstream USB
ports (peripherals). It provides series termination, EMI
filtering, and ESD protection for the two USB data lines
D+ and D-.
The USB Specification revision 1.1 provides for two
data rates:
The Full Speed signaling bit rate at 12 Mbits per
second, and
The Low Speed signaling bit rate at 1.5 Mbits per
second.
The speed is selected by connecting one of the data
lines (D+ or D-) to a 3.3V supply voltage via a 1.5k
Ω
pull-up resistor (R2).
Connections for Full Speed Operation
Full Speed devices have the pull-up resistor (R2) con-
nected to the D+ data line, as shown in
Figure 1
. Pin1
is tied to the D+ line of the USB controller. Pin 6 is con-
nected to the D+ line on the USB connector.
Connections for Low Speed Operation
Low Speed devices have the pull-up resistor (R2) con-
nected to the D- data line, as shown in
Figure 2
. Pin 1
is tied to the D- line of the USB controller; pin 6 is con-
nected to the D- line on the USB connector.
Figure 1. Full Speed Connection
Figure 2. Low Speed Connection
USB
CONNECTOR
Vcc
SC70-6
R1
GND
IN1
OUT 1
OUT 2
IN2
1
2
3
C1
C1
R1
R2
6
5
4
D1_i
GND
D2_i
D2_c
D1_c
V
3.3
USB
CONTROLLER
3.3V
D+
D-
D+
D-
GND
PACUSB-Ux
USB
CONNECTOR
Vcc
SC70-6
R1
GND
IN1
OUT 1
OUT 2
IN2
1
2
3
C1
C1
R1
R2
6
5
4
D1_i
GND
D2_i
D2_c
D1_c
V
3.3
USB
CONTROLLER
3.3V
D-
D+
D-
D+
GND
PACUSB-Ux
相關(guān)PDF資料
PDF描述
PACUSB-U2R Upstream USB Port Terminator
PACUSB-U2Y6 Upstream USB Port Terminator
PACUSB-U2Y6R Upstream USB Port Terminator
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PACUSB-U3R Upstream USB Port Terminator
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PACUSB-U2Y6 制造商:CALMIRCO 制造商全稱:California Micro Devices Corp 功能描述:Upstream USB Port Terminator
PACUSB-U2Y6R 功能描述:接口 - 專用 USB Upstream Termina RoHS:否 制造商:Texas Instruments 產(chǎn)品類型:1080p60 Image Sensor Receiver 工作電源電壓:1.8 V 電源電流:89 mA 最大功率耗散: 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:BGA-59
PACUSB-U3 制造商:CALMIRCO 制造商全稱:California Micro Devices Corp 功能描述:Upstream USB Port Terminator
PACUSB-U3R 功能描述:接口 - 專用 USB w/ ESD 22 Ohms RoHS:否 制造商:Texas Instruments 產(chǎn)品類型:1080p60 Image Sensor Receiver 工作電源電壓:1.8 V 電源電流:89 mA 最大功率耗散: 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:BGA-59