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參數(shù)資料
| 型號： | ISL54224IRTZEVAL1Z |
| 廠商： | Intersil |
| 文件頁數(shù)： | 18/18頁 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL FOR ISL5422A MUX |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 主要目的： | 接口，USB 2.0 開關(guān) |
| 嵌入式： | 否 |
| 已用 IC / 零件： | ISL54224 |
| 主要屬性： | 2 通道 |
| 次要屬性： | 2.7 V ~ 5.25 V 電源 |
| 已供物品： | 板 |
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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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ISL54224IRTZ-T | 功能描述:IC MULTIPLEXER DUAL 2:1 10TDFN RoHS:是 類別:集成電路 (IC) >> 接口 - 模擬開關(guān)，多路復(fù)用器，多路分解器 系列:- 其它有關(guān)文件:STG4159 View All Specifications 標(biāo)準(zhǔn)包裝:5,000 系列:- 功能:開關(guān) 電路:1 x SPDT 導(dǎo)通狀態(tài)電阻:300 毫歐 電壓電源:雙電源 電壓 - 電源，單路/雙路(±):±1.65 V ~ 4.8 V 電流 - 電源:50nA 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:7-WFBGA，F(xiàn)CBGA 供應(yīng)商設(shè)備封裝:7-覆晶 包裝:帶卷 (TR) |
| ISL54224IRUEVAL1Z | 制造商:INTERSIL 制造商全稱: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 類別:集成電路 (IC) >> 接口 - 模擬開關(guān)，多路復(fù)用器，多路分解器 系列:- 其它有關(guān)文件:STG4159 View All Specifications 標(biāo)準(zhǔn)包裝:5,000 系列:- 功能:開關(guān) 電路:1 x SPDT 導(dǎo)通狀態(tài)電阻:300 毫歐 電壓電源:雙電源 電壓 - 電源，單路/雙路(±):±1.65 V ~ 4.8 V 電流 - 電源:50nA 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:7-WFBGA，F(xiàn)CBGA 供應(yīng)商設(shè)備封裝:7-覆晶 包裝:帶卷 (TR) |
| ISL54224IRUZ-T7A | 功能描述:IC MULTIPLEXER DUAL 2:1 10UTQFN RoHS:是 類別:集成電路 (IC) >> 接口 - 模擬開關(guān)，多路復(fù)用器，多路分解器 系列:- 應(yīng)用說明:Ultrasound Imaging Systems Application Note 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:250 系列:- 功能:開關(guān) 電路:單刀單擲 導(dǎo)通狀態(tài)電阻:48 歐姆 電壓電源:單電源 電壓 - 電源，單路/雙路(±):2.7 V ~ 5.5 V 電流 - 電源:5µA 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:48-LQFP 供應(yīng)商設(shè)備封裝:48-LQFP（7x7） 包裝:托盤 |
| ISL54225 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:High-Speed USB 2.0 (480Mbps) Multiplexer with Overvoltage Protection (OVP) |
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