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参数资料
| 型号： | ISL54200 |
| 厂商： | Intersil Corporation |
| 英文描述： | USB 2.0 High/Full Speed Multiplexer |
| 中文描述： | USB2.0高/全速多路复用器 |
| 文件页数： | 8/16页 |
| 文件大小： | 1113K |
| 代理商： | ISL54200 |
8
FN6408.0
January 24, 2007
Application Block Diagram
Detailed Description
The ISL54200 device is a dual single pole/double throw
(SPDT) analog switch that operates from a single DC power
supply in the range of 2.7V to 5.5V. It was designed to
function as dual 2-to-1 multiplexer to select between a USB
high-speed transceiver and a USB full-speed transceiver in
portable battery powered products. It is offered in a TDFN
package and a small μTQFN package for use in MP3
players, cameras, PDAs, cellphones, and other personal
media players. The device has an enable pin to open all
switches.
The part consist of two 7
Ω
full speed (FSx) switches and two
4.5
Ω
high speed (HSx) switches. The FSx switches can
swing from 0V to V
DD
. They were designed to pass USB full-
speed (12Mbps) differential data signals with minimal
distortion. The HSx switches have high bandwidth and low
capacitance to pass USB high-speed (480Mbps) differential
data signals with minimal edge and phase distortion.
The ISL54200 was designed for MP3 players, cameras,
cellphones, and other personal media player applications
that have both high-speed and full-speed transceivers and
need to multiplex between these USB sources to a single
USB host (computer). A typical application block diagram of
this functionality is shown above.
A detailed description of the two types of switches are
provided in the sections below.
FSx Switches (FSD1, FSD2)
The two FSx switches (FSD1, FSD2) are bidirectional
switches that can pass rail-to-rail signals. When powered
with a 3.3V supply, these switches have a nominal r
(ON)
resistance of 7
Ω
over the signal range of 0V to 3.3V. They
were specifically designed to pass USB full-speed (12Mbps)
differential signals and meet the USB 2.0 full-speed signal
quality specifications. See eye diagram Figure 8.
The FSx switches can also pass USB high speed signals
(480Mbps) but do not quite meet the USB 2.0 high speed
signal quality eye diagram compliance requirement.
The maximum signal range for the FSx switches is from
-1.5V to V
DD
. The signal voltage should not be allowed to
exceed the V
DD
voltage rail or go below ground by more
than -1.5V.
When operated with a 2.7V to 3.6V supply, the FSx switches
are active (turned ON) whenever the IN logic control voltage
is
≤
0.5V and the EN logic voltage
≥
1.4V.
HSx Switches (HSD1, HSD2)
The two HSx switches (HSD2, HSD1) are bidirectional
switches that can pass rail-to-rail signals. When powered
with a 3.3V supply these switches have a nominal r
(ON)
of
4.5
Ω
over the signal range of 0V to 400mV with a r
(ON)
flatness of 0.4
Ω
. The r
(ON)
matching between the HSD1 and
HSD2 switches over this signal range is only 0.01
Ω
ensuring
minimal impact by the switches to USB high speed signal
transitions. As the signal level increases the r
(ON)
switch,
resistance increases. At signal level of 3.3V the switch
resistance is nominally 20
Ω
.
The HSx switches were specifically designed to pass USB
2.0 high-speed (480Mbps) differential signals typically in the
range of 0V to 400mV. They have low capacitance and high
bandwidth to pass the USB high-speed signals with
minimum edge and phase distortion to meet USB 2.0 high
speed signal quality specifications. See high-speed eye
diagrams Figures 9 and 10.
PORTABLE MEDIA DEVICE
ISL54200
USB
TRANSCEIVER
HIGH-SPEED
U
COMD1
COMD2
IN
GND
HSD1
HSD2
FSD1
FSD2
V
DD
EN
LOGIC CIRCUITRY
μCONTROLLER
4M
Ω
USB
TRANSCEIVER
FULL-SPEED
VBUS
D-
D+
GND
3.3V
ISL54200
相关PDF资料 |
PDF描述 |
|---|---|
| ISL54200IRZ | USB 2.0 High/Full Speed Multiplexer |
| ISL54200IRZ-T | USB 2.0 High/Full Speed Multiplexer |
| ISL54400EVAL1Z | Low Voltage, Dual SPDT, USB/Audio Switches with Negative Signal Capability |
| ISL54400IRUZ-T | Low Voltage, Dual SPDT, USB/Audio Switches with Negative Signal Capability |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ISL54200_07 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:USB 2.0 High/Full Speed Multiplexer |
| ISL54200EVAL1Z | 功能描述:EVALUATION BOARD FOR ISL54200 RoHS:是 类别:编程器，开发系统 >> 评估演示板和套件 系列:- 标准包装:1 系列:PCI Express® (PCIe) 主要目的:接口，收发器，PCI Express 嵌入式:- 已用 IC / 零件:DS80PCI800 主要属性:- 次要属性:- 已供物品:板 |
| ISL54200IRUZ-T | 功能描述:IC USB SWITCH DUAL SPDT 10UTQFN RoHS:是 类别:集成电路 (IC) >> 接口 - 模拟开关，多路复用器，多路分解器 系列:- 标准包装:2,500 系列:- 功能:视频交叉点开关 电路:1 x 8:6 导通状态电阻:- 电压电源:单电源 电压 - 电源，单路/双路(±):3.135 V ~ 5.25 V 电流 - 电源:55mA 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:24-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:24-TSSOP 包装:带卷 (TR) 产品目录页面:1214 (CN2011-ZH PDF) 其它名称:FMS6502MTC24XTR |
| ISL54200IRZ | 功能描述:IC USB SWITCH DUAL SPDT 10TDFN RoHS:是 类别:集成电路 (IC) >> 接口 - 模拟开关，多路复用器，多路分解器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:36 系列:- 功能:多路复用器 电路:2 x 4:1 导通状态电阻:75 欧姆 电压电源:单/双电源 电压 - 电源，单路/双路(±):2 V ~ 12 V，±2 V ~ 6 V 电流 - 电源:- 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:20-SOIC（0.295"，7.50mm 宽） 供应商设备封装:20-SOIC W 包装:管件 |
| ISL54200IRZ-T | 功能描述:IC USB SWITCH DUAL SPDT 10TDFN RoHS:是 类别:集成电路 (IC) >> 接口 - 模拟开关，多路复用器，多路分解器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:36 系列:- 功能:多路复用器 电路:2 x 4:1 导通状态电阻:75 欧姆 电压电源:单/双电源 电压 - 电源，单路/双路(±):2 V ~ 12 V，±2 V ~ 6 V 电流 - 电源:- 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:20-SOIC（0.295"，7.50mm 宽） 供应商设备封装:20-SOIC W 包装:管件 |
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