LX1792 Datasheet, PDF (1/9 Pages) Microsemi Corporation – Low Voltage, Low Power, AudioMite Class-D Audio Amplifier

INTEGRATED PRODUCTS
LX1792
Low Voltage, Low Power, AudioMite™
Class-D Audio Amplifier
PRELIMINARY SPECIFICATION
DESCRIPTION
The MSC-LX1792 offers a patent The LX1790 consists of a preamplifier
pending, low voltage, low power, and followed by a fixed gain class D amplifier.
high efficiency amplifier for driving a The input resistor and feedback
high impedance speaker such as a hearing resistor is external in the LX1792 making
aid receiver.
it possible to set the gain arbitrarily, up to
The core of the amplifier is built upon approximately 40dB. The feedback
Microsemi’s patented LX1790 class D resistor can also be potentiometer to
amplifier.
facilitate volume control.
KEY FEATURES
! Low Operating Current: 120µA
Typical
! Low Operating Voltage: 0.9V
minimum
! Gain set by external resistors
! 3 Output Switch Resistance
Settings: 48, 24 & 16 Ω
! 5uVrms input referred noise.
IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com
APPLICATIONS
! Hearing Aid applications
! High impedance speaker
/Transducer applications
PRODUCT HIGHLIGHT
CLOCK
D_IN
PRE AMP
Σ
CMP
HBRIDGE
SPEAKER
T_J (°C)
10 to 55
PACKAGE ORDER INFO
J
Ceramic Dip
Plastic MLPM
14-Pin
LM _8-Pin
DU
Plastic MSOP
8-Pin
BD
Bare Die
LX1792CJ
LX1792CLM
LX1792CDU
LX1792BD
Copyright  2001
Rev. 0.3,2002-05-08
Microsemi
INTEGRATED PRODUCTS
5973 Avenida Encinas, Suite 101, Carlsbad 92008, Fax [phone]
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