1
FN6458.2
ISL54000, ISL54001, ISL54002
Integrated Audio Amplifier Systems
The Intersil ISL54000, ISL54001, ISL54002 family of devices
are integrated audio power amplifier systems that combine
stereo BTL 8 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 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 8BTL 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
• Pb-Free (RoHS Compliant)
• Class AB 941mW Stereo BTL Speaker Amplifiiers
• Single Supply Operation . . . . . . . . . . . . . . . . .+2.7V to +5.5V
• THD+N at 1kHz, 800mW into 8 . . . . . . . . . . . . . . . . . .0.4%
• THD+N at 1kHz, 941mW into 8 . . . . . . . . . . . . . . . . . . . 1%
• Low Power Shutdown
• Thermal Shutdown Protection
• “Click and Pop” Suppression Circuitry
• 2:1 Stereo Input Mux (ISL54001, ISL54002)
• Mixing of Two Stereo Inputs (ISL54002)
• TTL Logic-Compatible
• Available in 20 Ld 4x4 Thin QFN
Applications
• Battery powered, Handheld, and Portable Equipment
- Cellular/mobile Phones
- PDA’s, MP3 Players, DVD Players, Cameras
- Laptops, Notebooks, Palmtops
- Handheld Games and Toys
• Desktop Computers
ISL54002 Typical Application Circuit and Block Diagram
MUX/MIXER
CLICK AND POP
LOGIC CONTROL
BIAS
THERMAL
PROTECTION
SD
INS
MIX
IN
1R
IN
2R
IN
1L
IN
2L
REF
OUTR+
OUTR-
OUTL+
OUTL-
GND
V
DD
C
REF
MICRO
CONTROLLER
RIGHT AUDIO 1
RIGHT AUDIO 2
LEFT AUDIO 1
LEFT AUDIO 2
BTL
BTL
1µF
0.1µF
0.22µF
0.22µF
0.22µF
0.22µF
MUX/MIXER
Data Sheet October 17, 2007
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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