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P
RELIMINARY
LX1710/1711
Class-D Mono Power Amplifier Controller IC
The LX1710/1711 is a monolithic
high performance integrated class-D
controller IC designed for high
efficiency audio requirements such as
portable or battery operated products,
automotive amplifier, and multimedia
applications. This high frequency, full
audio bandwidth switching power
amplifier controller, is a completely
new design with dramatically im-
proved performance over Linfinity鈥檚
previous generation amplifier pro-
ducts. Enhancements include better
SNR, lower noise floor, and reduced
THD. Combined with output power
MOSFET鈥檚 and an output filter, the
LX1710/1711 is a complete class-D audio
solution.
A complete audio amplifier module is
available to quickly evaluate the LX1710
controller. Simply connect the amplifier
to the power source, audio signal, and
speakers. Reference designs support a
variety of requirements including multi
channel systems, subwoofers, and various
speaker loads (2
amplifier solution can easily be adjusted
for frequency response, optimized for
efficiency and performance, or designed to
minimize PCB area and component count.
The LX1710/LX1711 is available in a
space saving 28-pin SSOP package.
Integrated Switching Class-D
W W W .
Microsemi
.
COM
IMPORTANT:
For the most current data, consult
MICROSEMI
鈥檚 website:
http://www.microsemi.com
Class-D Amplifier Efficiency Comparison
Single Channel Controller IC
Full 20Hz-20kHz Audio
Bandwidth
High Fidelity (LX1710) Or High
Power (LX1711) Versions
Available
Single Supply Operation
THD+N <0.05% Typical
(1Wrms, 1kHz, 4
Maximum Efficiency 80%-85%
Output Power >50Wrms
(LX1711, 4
PSRR 鈥?0dB Typical
Differential Input To Minimize
Noise Effects
Supports Multi-Channel
Systems
Complete LXE1710 Amplifier
Evaluation Module Available
28-Pin SSOP Package
Notebook Computers
Desktop Computers
Multimedia Speakers
Automotive Amplifiers And
Headunits
Battery Operated Equipment
(Megaphone, PA System)
Portable Audio (Boom Box)
Wireless Speakers
High Power Subwoofer
LX 1 7 1 0 /1 7 1 1
LX 1 7 1 0 /1 7 1 1
T
J
(擄C)
0 to 70
Copyright
漏
2000
Rev. 1.1, 2000-12-01
V
DD
7V-15V
7V-25V
DB
Plastic SSOP 28-PIN
LX1710CDB
LX1711CDB
Page 1
Microsemi
Linfinity Microelectronics Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
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