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ISL54210EVAL1Z Scheda tecnica(PDF) 1 Page - Intersil Corporation

Il numero della parte ISL54210EVAL1Z
Spiegazioni elettronici  MP3/USB 2.0 High Speed Switch with Negative Signal Handling/Click and Pop Suppression
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Produttore elettronici  INTERSIL [Intersil Corporation]
Homepage  http://www.intersil.com/cda/home
Logo INTERSIL - Intersil Corporation

ISL54210EVAL1Z Scheda tecnica(HTML) 1 Page - Intersil Corporation

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MP3/USB 2.0 High Speed Switch with Negative
Signal Handling/Click and Pop Suppression
ISL54210
The Intersil ISL54210 dual SPDT (Single Pole/Double
Throw) switch combines low distortion audio and
accurate USB 2.0 high-speed data (480Mbps) signal
switching in the same low voltage device. When
operated with a 2.7V to 3.6V single supply, these analog
switches allow audio signal swings below-ground,
allowing the use of a common USB and audio
headphone connector in Personal Media Players and
other portable battery powered devices.
The ISL54210 incorporates circuitry for the detection of
the USB VBUS voltage, which is used to switch between
the audio and USB signal sources.
It has an enable pin (CTRL) to open all switches and
activate the audio click/pop (C/P) circuitry. The high
off-isolation and special C/P circuitry of the audio
switches eliminates click and pops in the head-phones
when the audio CODEC drivers are powering up/down
or when a headphone is inserted or removed from the
jack.
It’s available in a tiny 10 Ld 1.8mmx1.4mm ultra-thin
µTQFN package and a 10 Ld 3mmx3mm TDFN package.
It operates over a temperature range of -40°C to +85°C.
Related Literature (see page 19)
• Technical Brief TB363 “Guidelines for Handling and
Processing Moisture Sensitive Surface Mount Devices
(SMDs)”
• Application Note AN1407 “ISL54210EVAL1Z
Evaluation Board User’s Manual”
Features
• High Speed (480Mbps) and Full Speed (12Mbps)
Signaling Capability per USB 2.0
• Detection of VBUS Voltage on USB Cable
• Low Distortion Negative Signal Capability
• Clickless/Popless Audio Switches
• Enable Pin to Open all Switches
• Low Distortion Headphone Audio Signals
-THD+N at 1mW into 32Ω Load. . . . . . . . . 0.014%
• Crosstalk (20Hz to 20kHz). . . . . . . . . . . . . -100dB
• Off-Isolation (20Hz to 100kHz) . . . . . . . . . . . 95dB
• Single Supply Operation (VDD) . . . . . . 2.7V to 3.6V
• -3dB Bandwidth USB Switch . . . . . . . . . . . . 700MHz
• Low ON Capacitance @ 240MHz. . . . . . . . . . . 4.2pF
• Available in µTQFN and TDFN Packages
• Compliant with USB 2.0 Short Circuit Requirements
Without Additional External Components
• Pb-Free (RoHS Compliant)
Applications* (see page 19)
• MP3 and other Personal Media Players
• Cellular/Mobile Phones
•PDA’s
• Audio/USB Switching
Application Block Diagram
ISL54210
USB
TRANSCEIVER
HIGH-SPEED
COM -
COM +
VBUS
GND
D-
D+
L
R
V
DD
CTRL
LOGIC CONTROL
4MΩ
4MΩ
CLICK
AND
POP
VBUS
3.3V
200kΩ
200kΩ
µCONTROLLER
AUDIO CODEC
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
| Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2008, 2010. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
March 18, 2010
FN6661.2


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