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ISL54409EVAL1Z 数据表(PDF) 1 Page - Intersil Corporation

部件名 ISL54409EVAL1Z
功能描述  Audio/USB 2.0 Wired-OR Switch with Click and Pop Reduction
Download  13 Pages
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制造商  INTERSIL [Intersil Corporation]
网页  http://www.intersil.com/cda/home
标志 INTERSIL - Intersil Corporation

ISL54409EVAL1Z 数据表(HTML) 1 Page - Intersil Corporation

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1
Audio/USB 2.0 Wired-OR Switch with Click and
Pop Reduction
ISL54409, ISL54410
The Intersil ISL54409 and ISL54410 are Dual SPST
(Single Pole/Single Throw) switches that provide a very
low distortion audio path for a stereo headphone and
can be connected in a wired-OR configuration at the
switch outputs with USB2.0 HS signals for Audio/USB
signal multiplexing to a common connector. The audio
switch path can be disabled to provide high signal
isolation, preventing crosstalk between the audio codec
and USB data signals.
The ISL54409 and ISL54410 analog switches are
negative swing capable with a single supply voltage and
maintain excellent THD performance within a signal
range of -1V to +1V. The switch terminals have low pin
capacitance (4pF typical), minimizing impact to USB 2.0
High-Speed signals. The ISL54409 offers a Low Power
Shutdown mode while the ISL54410 offers a High
Off-Isolation mode. The ISL54410 contains active Audio
Click and Pop Elimination circuitry for AC-coupled audio
signals.
The ISL54409 and ISL54410 are available in a 8 Ld
TDFN (2mmx2mm) or a 10 Ld µTQFN (1.8mmx1.4mm)
package. They operate over a temperature range of
-40 to +85°C.
Features
• Single Supply Operation (VDD) . . . +2.7V to +5.0V
• Negative Signal Handling (See “Audio/USB wired-OR
Application” on page 8 on protecting USB controller)
• Low OFF Capacitance for HS USB . . . . . . . . . . 4pF
• Power Off Protection
•THD+N at 1mW into 32Ω Load . . . . . . . . <0.02%
• Audio Muting . . . . . . . . . . . . . . . . . . . . .>110dB
• Low Power Consumption. . . . 21µW with 3V supply
• Low Power Shutdown Mode (ISL54409)
• Active Click and Pop Elimination Circuitry (ISL54410)
•USB VBUS Hot Plug Operation
• Available in 8 Ld TDFN (2mmx2mm) or 10 Ld µTQFN
(1.8mmx1.4mm) Package
Applications*(see page 11)
• Consumer Entertainment Systems
• MP3 and other Personal Media Players
• Cellular/Mobile Phones and PDAs
Related Literature*(see page 11)
• Technical Brief TB363 “Guidelines for Handling and
Processing Moisture Sensitive Surface Mount Devices
(SMDs)”
Typical Application
USB2.0 HS Eye Diagram
LOGIC
CONTROL
CTRL
IN
CODEC
µCONTROLLER
COM+
COM-
ISL54409
AUDIO
USB
CONTROLLER
RIN
LIN
ISL54410
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. 2009, 2010. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
January 14, 2010
FN6983.1


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