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参数资料
| 型号： | ISL54224IRTZ-T |
| 厂商： | Intersil |
| 文件页数： | 18/18页 |
| 文件大小： | 0K |
| 描述： | IC MULTIPLEXER DUAL 2:1 10TDFN |
| 标准包装： | 6,000 |
| 功能： | 多路复用器 |
| 电路： | 2 x 2:1 |
| 导通状态电阻： | 20 欧姆 |
| 电压电源： | 单电源 |
| 电压 - 电源，单路/双路(±)： | 2.7 V ~ 5.25 V |
| 电流 - 电源： | 45µA |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-VFDFN 裸露焊盘 |
| 供应商设备封装： | 10-TDFN-EP（3x3） |
| 包装： | 带卷 (TR) |
ISL54224
9
FN6969.1
September 19, 2013
Application Block Diagram
Detailed Description
The ISL54224 device is a dual single pole/double throw (SPDT)
analog switch configured as a DPDT that operates from a single
DC power supply in the range of 2.7V to 5.25V.
It was designed to function as a dual 2-to-1 multiplexer to select
between two USB high-speed differential data signals in portable
battery powered products. It is offered in a TDFN, and a small
TQFN packages for use in MP3 players, cameras, PDAs,
cellphones, and other personal media players.
The part contains special overvoltage detection and protection
(OVP) circuitry on the D-/D+ com pins. This circuitry acts to open
the USB in-line switches when the part senses a voltage on the
com pins that is >3.8V (typ) or < -0.5V (typ). It isolates voltages
up to 5.25V and down to -5V from getting through to the other
side of the switch to protect the USB transceivers connected at
the signal pins (HSD1-, HSD1+, HSD2-, HSD2+).
The device has an open drain OE/ALM pin that can be driven
“Low” to open all switches. The OE/ALM pin gets internally pulled
“Low” whenever the part senses an overvoltage condition. The
pin must be externally pulled “High” with a 100k pull-up resistor
and monitored for a “Low” to determine when an overvoltage
condition has occurred.
The part consists of four 6.5 high speed (HSx) switches. These
switches have high bandwidth and low capacitance to pass USB
high-speed (480Mbps) differential data signals with minimal
edge and phase distortion. They can also swing from 0V to 3.6V
to pass USB full speed (12Mbps) differential data signals with
minimal distortion.
The ISL54224 was designed for MP3 players, cameras,
cellphones, and other personal media player applications that
have multiple high-speed or full-speed transceivers sections and
need to multiplex between these USB sources to a single USB
host (computer). A typical application block diagram of this
functionality is previously shown.
A detailed description of the HS switches is provided in the
following section.
High-Speed (HSx) Data Switches
The HSx switches (HSD1-, HSD1+, HSD2-, HSD2+) are
bi-directional switches that can pass USB high-speed and USB
full-speed signals when VDD is in the range of 2.7V to 5.25V.
When powered with a 2.7V supply, these switches have a
nominal rON of 6.5 over the signal range of 0V to 400mV with a
rON flatness of 0.3. The rON matching between the HSD1x
switches and HSD2x switches over this signal range is only 0.2
,
ensuring minimal impact by the switches to USB high-speed
signal transitions. As the signal level increases, the rON switch
resistance increases. At a signal level of 3.3V, the switch
The HSx switches were specifically designed to pass USB 2.0
high-speed (480Mbps) differential signals 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 Figure 22 in the “Typical Performance Curves”
on page 14 for USB High-speed Eye Pattern taken with switch in
the signal path.
The HSx switches can also pass USB full-speed signals (12Mbps)
with minimal distortion and meet all the USB requirements for
USB 2.0 full-speed signaling. See Figure 23 in the “Typical
Performance Curves” on page 14 for USB Full-speed Eye Pattern
taken with switch in the signal path.
PORTABLE MEDIA DEVICE
ISL54224
USB
TRANSCEIVER
HIGH-SPEED
U
S
B
CON
N
E
C
T
O
R
D-
D+
SEL
GND
HSD1-
HSD1+
HSD2-
HSD2+
VDD
OE/ALM
LOGIC CIRCUITRY
CONTROLLER
USB
TRANSCEIVER
FULL-SPEED
VBUS
D-
D+
GND
OR
FULL-SPEED
HIGH_SPEED
OR
OVP
#1
#2
4M
100k
500
3.3V
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ISL54224IRUEVAL1Z | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:High-Speed USB 2.0 (480Mbps) Multiplexer with Overvoltage Protection (OVP) and Overvoltage Indicator Output |
| ISL54224IRUZ-T | 功能描述:IC MULTIPLEXER DUAL 2:1 10TQFN 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:- 其它有关文件:STG4159 View All Specifications 标准包装:5,000 系列:- 功能:开关 电路:1 x SPDT 导通状态电阻:300 毫欧 电压电源:双电源 电压 - 电源，单路/双路(±):±1.65 V ~ 4.8 V 电流 - 电源:50nA 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:7-WFBGA，FCBGA 供应商设备封装:7-覆晶 包装:带卷 (TR) |
| ISL54224IRUZ-T7A | 功能描述:IC MULTIPLEXER DUAL 2:1 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:- 应用说明:Ultrasound Imaging Systems Application Note 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:250 系列:- 功能:开关 电路:单刀单掷 导通状态电阻:48 欧姆 电压电源:单电源 电压 - 电源，单路/双路(±):2.7 V ~ 5.5 V 电流 - 电源:5µA 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:48-LQFP 供应商设备封装:48-LQFP（7x7） 包装:托盘 |
| ISL54225 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:High-Speed USB 2.0 (480Mbps) Multiplexer with Overvoltage Protection (OVP) |
| ISL54225_10 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:High-Speed USB 2.0 (480Mbps) Multiplexer with Overvoltage Protection (OVP) |
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