Os motores de busca de Datasheet de Componentes eletrônicos
  Portuguese  ▼
ALLDATASHEETPT.COM

X  

ISL54220 Folha de dados(PDF) 10 Page - Intersil Corporation

Nome de Peças ISL54220
Descrição Electrónicos  High-Speed USB 2.0 (480Mbps) Multiplexer
Download  15 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricante Electrônico  INTERSIL [Intersil Corporation]
Página de início  http://www.intersil.com/cda/home
Logo INTERSIL - Intersil Corporation

ISL54220 Folha de dados(HTML) 10 Page - Intersil Corporation

Back Button ISL54220 Datasheet HTML 6Page - Intersil Corporation ISL54220 Datasheet HTML 7Page - Intersil Corporation ISL54220 Datasheet HTML 8Page - Intersil Corporation ISL54220 Datasheet HTML 9Page - Intersil Corporation ISL54220 Datasheet HTML 10Page - Intersil Corporation ISL54220 Datasheet HTML 11Page - Intersil Corporation ISL54220 Datasheet HTML 12Page - Intersil Corporation ISL54220 Datasheet HTML 13Page - Intersil Corporation ISL54220 Datasheet HTML 14Page - Intersil Corporation Next Button
Zoom Inzoom in Zoom Outzoom out
 10 / 15 page
background image
10
FN6819.1
February 4, 2010
and the fault voltage is isolated from the other side of the
switch. When VDD is in the range of 2.7V to 5.5V the
fault voltage will pass through to the output of an active
switch channel.
The HS1 channel switches are active (turned ON)
whenever the SEL voltage is logic “0” (Low) and the OE
voltage is logic “0” (Low).
The HS2 channel switches are active (turned ON)
whenever the SEL voltage is logic “1” (High) and the OE
voltage is logic “0” (Low).
ISL54220 Operation
The following will discuss using the ISL54220 shown in
the “Application Block Diagram” on page 9.
POWER
The power supply connected at the VDD pin provides the
DC bias voltage required by the ISL54220 part for proper
operation. The ISL54220 can be operated with a VDD
voltage in the range of 2.7V to 5.5V. When used in a USB
application, the VDD voltage should be kept in the range
of 3.0V to 5.5V to ensure you get the proper signal levels
for good signal quality.
A 0.01µF or 0.1µF decoupling capacitor should be
connected from the VDD pin to ground to filter out any
power supply noise from entering the part. The
capacitor should be located as close to the VDD pin as
possible.
In a typical application, VDD will be in the range of
2.8V to 4.3V and will be connected to the battery or
LDO of the portable media device.
LOGIC CONTROL
The state of the ISL54220 device is determined by the
voltage at the SEL pin and the OE pin. SEL is only active
when the OE pin is logic “0” (Low). Refer to “Truth Table”
on page 2.
The ISL54220 logic pins are designed to minimize
current consumption when the logic control voltage is
lower than the VDD supply voltage. With VDD = 3.6V and
logic pins at 1.4V the part typically draws only 6.6µA.
With VDD = 4.3V and logic pins at 2.6V, the part typically
draws only 0.2µA. Driving the logic pins to the VDD
supply rail minimizes power consumption.
The logic pins must be held High or Low and must not
float.
Logic Control Voltage Levels
With VDD supply voltage in the range of 2.7V to 3.6V the
logic levels are:
OE = Logic “0” (Low) when VOE 0.5V
OE = Logic “1” (High) when VOE 1.4V
SEL = Logic “0” (Low) when VSEL 0.5V
SEL = Logic “1” (High) when VSEL 1.4V
With VDD supply voltage in the range of 4.3V to 5.5V the
logic levels are:
OE = Logic “0” (Low) when VOE 0.8V
OE = Logic “1” (High) when VOE 2.0V
SEL = Logic “0” (Low) when VSEL 0.8V
SEL = Logic “1” (High) when VSEL 2.0V
HSD1 USB Channel
If the SEL pin = Logic “0” and the OE pin = Logic “0”,
high-speed Channel 1 will be ON. The HSD1- and HSD1+
switches are ON and the HSD2- and HSD2+ switches are
OFF (high impedance).
When a computer or USB hub is plugged into the
common USB connector and channel one is active, a link
will be established between the USB 1 driver section of
the media player and the computer. The device will be
able to transmit and receive data from the computer at a
data rate of 480Mbps.
HSD2 USB Channel
If the SEL pin = Logic “1” and the OE pin = Logic “0”,
high-speed Channel 2 will be ON. The HSD2- and HSD2+
switches are ON and the HSD1- and HSD1+ switches are
OFF (high impedance).
When a USB cable from a computer or USB hub is
connected at the common USB connector and the part
has Channel 2 active, a link will be established between
the USB 2 driver section of the media player and the
computer. The device will be able to transmit and receive
data from the computer at a data rate of 480Mbps.
All Switches OFF Mode
If the SEL pin = Logic “0” or Logic “1” and the OE pin =
Logic “1”, all of the switches will turn OFF (high
impedance).
The all OFF state can be used to switch between the two
USB sections of the media player. When disconnecting
from one USB device to the other USB device, you can
momentarily put the ISL54220 switch in the “all off”
state in order to get the computer to disconnect from the
one device so it can properly connect to the other USB
device when that channel is turned ON.
USB 2.0 VBUS Short Requirements
The USB specification in section 7.1.1 states a USB
device must be able to withstand a VBUS short to the D+
or D- signal lines when the device is either powered off or
powered on for at least 24 hours. The ISL54220 part has
special fault protection circuitry to meet these short
circuit requirements.
The fault protection 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 overvoltage condition the part draws
<500µA of current and causes no stress/damage to the
IC.
ISL54220


Nº de peça semelhante - ISL54220

Fabricante ElectrônicoNome de PeçasFolha de dadosDescrição Electrónicos
logo
Intersil Corporation
ISL54220 INTERSIL-ISL54220 Datasheet
841Kb / 18P
   High-Speed USB 2.0 480Mbps Multiplexer
ISL54220 INTERSIL-ISL54220 Datasheet
9Mb / 44P
   Providing high-performance solutions for every link in the signal chain
logo
Renesas Technology Corp
ISL54220 RENESAS-ISL54220 Datasheet
1Mb / 18P
   High-Speed USB 2.0 (480Mbps) Multiplexer
logo
Intersil Corporation
ISL54220IRTZ INTERSIL-ISL54220IRTZ Datasheet
841Kb / 18P
   High-Speed USB 2.0 480Mbps Multiplexer
logo
Renesas Technology Corp
ISL54220IRTZ RENESAS-ISL54220IRTZ Datasheet
1Mb / 18P
   High-Speed USB 2.0 (480Mbps) Multiplexer
More results

Descrição semelhante - ISL54220

Fabricante ElectrônicoNome de PeçasFolha de dadosDescrição Electrónicos
logo
Renesas Technology Corp
ISL54220 RENESAS-ISL54220 Datasheet
1Mb / 18P
   High-Speed USB 2.0 (480Mbps) Multiplexer
ISL54223 RENESAS-ISL54223 Datasheet
1Mb / 13P
   High-Speed USB 2.0 (480Mbps) Multiplexer
May 27, 2009
logo
Intersil Corporation
ISL54222 INTERSIL-ISL54222 Datasheet
850Kb / 15P
   High-Speed USB 2.0 (480Mbps) Multiplexer
ISL54223 INTERSIL-ISL54223 Datasheet
780Kb / 13P
   High-Speed USB 2.0 (480Mbps) Multiplexer
ISL54221 INTERSIL-ISL54221 Datasheet
741Kb / 13P
   High-Speed USB 2.0 (480Mbps) Multiplexer
logo
Renesas Technology Corp
ISL54221 RENESAS-ISL54221 Datasheet
1Mb / 13P
   High-Speed USB 2.0 (480Mbps) Multiplexer
logo
Intersil Corporation
ISL54222A INTERSIL-ISL54222A_10 Datasheet
908Kb / 19P
   High-Speed USB 2.0 (480Mbps) Multiplexer
ISL54220 INTERSIL-ISL54220 Datasheet
841Kb / 18P
   High-Speed USB 2.0 480Mbps Multiplexer
ISL54222 INTERSIL-ISL54222_09 Datasheet
856Kb / 15P
   High-Speed USB 2.0 (480Mbps) Multiplexer
ISL54222A INTERSIL-ISL54222A Datasheet
891Kb / 17P
   High-Speed USB 2.0 (480Mbps) Multiplexer
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15


Folha de dados Download

Go To PDF Page


Ligação URL




Privacy Policy
ALLDATASHEETPT.COM
ALLDATASHEET é útil para você?  [ DONATE ] 

Sobre Alldatasheet   |   Publicidade   |   Contato conosco   |   Privacy Policy   |   roca de Link   |   Lista de Fabricantes
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com