LX1710 Microsemi Corporation, LX1710 Datasheet

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LX1710

Manufacturer Part Number
LX1710
Description
Class-D Mono Power Amplifier Controller IC
Manufacturer
Microsemi Corporation
Datasheet
Copyright
Rev. 1.1, 2000-12-01
A
IMPORTANT: For the most current data, consult MICROSEMI ’s website: http://www.microsemi.com
high performance integrated class-D
controller
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’s
previous generation amplifier pro-
ducts.
SNR, lower noise floor, and reduced
THD. Combined with output power
MOSFET’s and an output filter, the
The LX1710/1711 is a monolithic
M I C R O S E M I
2000
Enhancements include better
IC

Class-D Amplifier Efficiency Comparison

designed

11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
          
          
for
        
        
C O M P A N Y
0 to 70
T
J
( C)
high
available to quickly evaluate the LX1710
controller. Simply connect the amplifier
to the power source, audio signal, and
speakers.
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.
LX1710/1711 is a complete class-D audio
solution.
A complete audio amplifier module is
Linfinity Microelectronics Division
   

7V-15V
7V-25V
Reference designs support a
V
Microsemi
DD
    
Class-D Mono Power Amplifier Controller IC
AudioMAX™
DB
Plastic SSOP 28-PIN
LX1710CDB
LX1711CDB
P
RELIMINARY




















Integrated Switching Class-D
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 –70dB 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
  
   
         
         
   
LX1710/1711

Page 1

Related parts for LX1710

LX1710 Summary of contents

Page 1

... AudioMAX™ Class-D Mono Power Amplifier Controller IC 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 ...

Page 2

... All of the above assume no ambient airflow. The mono output controller is available in either an LX1711 high power version (>50Wrms, 4 supply voltage range of 7V-25V or an LX1710 high fidelity version (better SNR performance) with a supply voltage range of 7V-15V. The current rating of the external MOSFET’s, the available supply voltage, and speaker load primarily limits the maximum output power ...

Page 3

... REF Set by Internal Resistors -100 A OH OUT Microsemi Linfinity Microelectronics Division LX1710/1711 P RELIMINARY    DD – +0. REF REF REF 150     LX1710 / 1711 Units Min Typ. Max - . dBV 335 -110 110 3.4 1.6 0.6 2 1.0 2 1.5 ...

Page 4

... I = 3mA SINK 75mA SINK I = 3mA 5.2V SOURCE P (applied externally 75mA 5.2V SOURCE P (applied externally) Microsemi Linfinity Microelectronics Division LX1710/1711 P RELIMINARY          LX1710 / 1711 Units Min Typ. Max 1.3 ‘mV 42 ‘ ‘mV ‘mV/V 388 k 190 210 230 mV 500 ‘ns 250 ‘ ‘ ...

Page 5

... Copyright 2000 Rev. 1.1, 2000-12-01 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570  AudioMAX™ Class-D Mono Power Amplifier Controller LX1710/ LIFIE & 220m ...

Page 6

... 4.7µ – Typical Class-D Stereo Switching Amplifier Circuit Application Microsemi Linfinity Microelectronics Division LX1710/1711 P RELIMINARY L1 15µ 24.3K 15 ohm .68µ 220pF C 18 .47µ .68µ ...

Page 7

... V = 15V kHz 17.88k 5k 10k 50k 80k V = 15V IN THD Microsemi Linfinity Microelectronics Division LX1710/1711 P RELIMINARY   2 24.56 1. Output Power ( 100 200 500 10k Frequency (Hz) 30 20k Page 7 ...

Page 8

... V = 15V 1kHz OUT SNR = 81 dBV 10Hz – 22kHz Bandwidth A - weighted Microsemi Linfinity Microelectronics Division LX1710/1711 P RELIMINARY    " Supply Voltage ( 2.92k 100 200 500 10k Frequency (Hz) RMS   26 20k Page 8 ...

Page 9

... H Copyright 2000 Rev. 1.1, 2000-12-01 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570  AudioMAX™ Class-D Mono Power Amplifier Controller Microsemi Linfinity Microelectronics Division LX1710/1711 P RELIMINARY   & & ...

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