Low Voltage, Low Power, AudioMite鈩?/div>
Class-D Audio Amplifier
P
RELIMINARY
S
PECIFICATION
DESCRIPTION
KEY FEATURES
W W W.
Microsemi
.COM
The LX1790 consists of a preamplifier
The MSC-LX1792 offers a patent
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鈥檚 patented LX1790 class D resistor can also be potentiometer to
facilitate volume control.
amplifier.
Low Operating Current: 120碌A(chǔ)
Typical
Low Operating Voltage: 0.9V
minimum
Gain set by external resistors
3 Output Switch Resistance
Settings: 48, 24 & 16
鈩?/div>
5uVrms input referred noise.
APPLICATIONS
Hearing Aid applications
High impedance speaker
/Transducer applications
IMPORTANT:
For the most current data, consult
MICROSEMI鈥檚
website:
http://www.microsemi.com
PRODUCT HIGHLIGHT
C
LOCK
D
IN
P
RE
A
MP
危
CMP
H
BRIDGE
S
PEAKER
PACKAGE ORDER INFO
LX1792
LX1792
T
J
(擄C)
擄
10 to 55
N
Plastic Dip
14-Pin
LX1792CN
LM
Plastic MLPM
8-Pin
LX1792CLM
Bare Die
LX1792 bare die
Copyright
錚?/div>
2001
Rev. 0.3,2002-03-11
Microsemi
INTEGRATED PRODUCTS
5973 Avenida Encinas, Suite 101, Carlsbad 92008, Fax (760) 431-0541
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