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ISL54000 Datasheet

  • ISL54000

  • Integrated Audio Amplifier Systems

  • 11頁(yè)

  • INTERSIL   INTERSIL

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ISL54000, ISL54001, ISL54002
Data Sheet
October 17, 2007
FN6458.2
Integrated Audio Amplifier Systems
The Intersil ISL54000, ISL54001, ISL54002 family of devices
are integrated audio power amplifier systems that combine
stereo BTL 8惟 amplifiers in a single package. The devices are
designed to operate from a single +2.7V to +5V power supply.
All devices are offered in a 20 Ld 4x4 thin QFN package.
Targeted applications include handheld equipment such as
cell-phones, MP3 players, and games/toys.
The ISL54000, ISL54001, ISL54002 parts contain two class
AB bridge-tied (BTL) type power amplifiers for driving stereo
8惟 speakers. Each BTL is capable of delivering 800mW (typ)
with 0.4% THD+N and 941mW (typ) with 1% THD+N of
continuous average power into an 8惟 BTL speaker load
when using a 5V supply.
The ISL54001 and ISL54002 feature a 2:1 stereo input
multiplexer front-end. This allows selection between two
stereo sources. In addition the ISL54002 has the capability
of mixing the stereo inputs.
All devices in this family feature low power shutdown,
thermal overload protection and click/pop suppression. The
click and pop circuitry eliminates audible transients during
audio source changes and transitioning in and out of
shutdown.
Features
鈥?Pb-Free (RoHS Compliant)
鈥?Class AB 941mW Stereo BTL Speaker Amplifiiers
鈥?Single Supply Operation . . . . . . . . . . . . . . . . .+2.7V to +5.5V
鈥?THD+N at 1kHz, 800mW into 8惟 . . . . . . . . . . . . . . . . . .0.4%
鈥?THD+N at 1kHz, 941mW into 8惟 . . . . . . . . . . . . . . . . . . . 1%
鈥?Low Power Shutdown
鈥?Thermal Shutdown Protection
鈥?鈥淐lick and Pop鈥?Suppression Circuitry
鈥?2:1 Stereo Input Mux (ISL54001, ISL54002)
鈥?Mixing of Two Stereo Inputs (ISL54002)
鈥?TTL Logic-Compatible
鈥?Available in 20 Ld 4x4 Thin QFN
Applications
鈥?Battery powered, Handheld, and Portable Equipment
- Cellular/mobile Phones
- PDA鈥檚, MP3 Players, DVD Players, Cameras
- Laptops, Notebooks, Palmtops
- Handheld Games and Toys
鈥?Desktop Computers
ISL54002 Typical Application Circuit and Block Diagram
0.1碌F
0.22碌F
RIGHT AUDIO 1
0.22碌F
RIGHT AUDIO 2
V
DD
OUTR+
MUX/MIXER
BTL
OUTR-
IN
1R
IN
2R
0.22碌F
LEFT AUDIO 1
0.22碌F
LEFT AUDIO 2
IN
1L
OUTL+
IN
2L
MUX/MIXER
BTL
OUTL-
CLICK AND POP
THERMAL
PROTECTION
BIAS
REF
C
REF
1碌F
SD
MICRO
CONTROLLER
INS
MIX
GND
LOGIC CONTROL
1
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. 2007. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.

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