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參數(shù)資料
| 型號： | ISL54220IRTZ-T |
| 廠商： | Intersil |
| 文件頁數(shù)： | 18/18頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC USB SWITCH DUAL SPDT 10TDFN |
| 標準包裝： | 6,000 |
| 功能： | USB 開關(guān) |
| 電路： | 2 x SPDT |
| 導(dǎo)通狀態(tài)電阻： | 8 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： | 9nA |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 10-VFDFN 裸露焊盤 |
| 供應(yīng)商設(shè)備封裝： | 10-TDFN/MLP（3x3） |
| 包裝： | 帶卷 (TR) |
9
FN6819.1
February 4, 2010
Application Block Diagram
Detailed Description
The ISL54220 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
5.5V.
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, MSOP, and a small TQFN packages for use in
MP3 players, cameras, PDAs, cell phones, and other
personal media players. The device has an enable pin to
open all switches.
The part consists of four 6Ω 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 VDD to pass USB full speed
(12Mbps) differential data signals with minimal
distortion.
The ISL54220 was designed for MP3 players, cameras,
cell phones, 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 is shown on page 9.
A detailed description of the HS switches is provided in
the following section.
High-Speed (HSx) Switches
The HSx switches (HSD1-, HSD1+, HSD2-, HSD2+) are
bi-directional switches that can pass rail-to-rail signals.
When powered with a 3.3V supply, these switches have a
nominal rON of 6Ω over the signal range of 0V to 400mV
with a rON flatness of 0.94Ω. The rON matching between
the HSD1 and HSD2 switches over this signal range is
only 0.12Ω, ensuring minimal impact by the switches to
USB high speed signal transitions. As the signal level
increases, the rON switch resistance increases. At signal
level of 3.3V, the switch resistance is nominally 129Ω.
See Figures 7, 8, 9, 10 in the “Typical Performance
Curves” beginning on page 11.
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 11 in
the “Typical Performance Curves” on page 12 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 12 in the “Typical Performance Curves” on
page 13 for USB Full-speed Eye Pattern taken with
switch in the signal path.
The maximum normal operating signal range for the
HSx switches is from 0V to VDD. The signal voltage
should not be allow to exceed the VDD voltage rail or go
below ground by more than -0.3V for normal operation.
However, in the event that the USB 5.25V VBUS voltage
gets shorted to one or both of the D-/D+ pins, the
ISL54220 has special fault protection circuitry to prevent
damage to the ISL54220 part. The fault circuitry allows
the signal pins (D-, D+, HS1D-, HS1D+, HS2D-, HS2D+)
to be driven up to 5.5V while the VDD supply voltage is in
the range of 0V to 5.5V. In this condition the part draws
< 500A of current and causes no stress to the IC. In
addition when VDD is at 0V (ground) all switches are OFF
PORTABLE MEDIA DEVICE
ISL54220
USB
TRANSCEIVER
HIGH-SPEED
D-
D+
SEL
GND
HSD1-
HSD1+
HSD2-
HSD2+
VDD
OE
LOGIC CIRCUITRY
CONTROLLER
USB
TRANSCEIVER
FULL-SPEED
VBUS
D-
D+
GND
OR
FULL-SPEED
HIGH_SPEED
OR
US
B
CON
N
ECTOR
#1
#2
ISL54220
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參數(shù)描述 |
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| ISL54220IRUEVAL1Z | 功能描述:EVALUATION BOARD FOR ISL54220 RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評估演示板和套件 系列:- 標準包裝:1 系列:PCI Express® (PCIe) 主要目的:接口，收發(fā)器，PCI Express 嵌入式:- 已用 IC / 零件:DS80PCI800 主要屬性:- 次要屬性:- 已供物品:板 |
| ISL54220IRUZ-T | 功能描述:IC USB SWITCH DUAL SPDT 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:- 其它有關(guān)文件:STG4159 View All Specifications 標準包裝: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) |
| ISL54220IUZ | 功能描述:IC USB SWITCH DUAL SPDT 10MSOP 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:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:36 系列:- 功能:多路復(fù)用器 電路:2 x 4:1 導(dǎo)通狀態(tài)電阻:75 歐姆 電壓電源:單/雙電源 電壓 - 電源，單路/雙路(±):2 V ~ 12 V，±2 V ~ 6 V 電流 - 電源:- 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:20-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:20-SOIC W 包裝:管件 |
| ISL54220IUZ-T | 功能描述:IC USB SWITCH DUAL SPDT 10MSOP 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 標準包裝: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) |
| ISL54221 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:High-Speed USB 2.0 (480Mbps) Multiplexer |
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