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LX1704_09 Datasheet, PDF (1/12 Pages) Microsemi Corporation – 2W Filter less Stereo Class-D Amplifier | |||
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LX1704
TM
®
2W Filter less Stereo Class-D Amplifier
PRODUCTION DATA SHEET
DESCRIPTION
The LX1704 family represents a The LX1704 family provides very
new generation of a fully integrated low quiescent current consumption
audio stereo Class-D amplifier from through the use of a proprietary output
Microsemi. This CMOS stereo Class- modulation scheme. This technology
D amplifier series is optimized for low enables filterless operation in many
voltage, low power operation and applications. The part features on board,
minimum system cost. The products low Rdson, complementary output
are ideal for use in battery powered MOSFETâs that reduces the need for
applications where low power consumption external components.
is desirable such as: portable speakers, The LX1704 is offered in a small
DVDs, PMP, and other low power footprint, low profile, 4mm x 4mm 16-
systems.
pin MLPQ.
IMPORTANT: For the most current data, consult MICROSEMIâs website: http://www.microsemi.com
PRODUCT HIGHLIGHT
PVDD
Speaker Out 1
VDD
IN1+
IN1-
PVSS1
OUT2-
VDD
PVDD2
LXP1a7rt04
IN1+
OUT2+
IN1-
PVSS2
PVDD
Speaker Out 2
KEY FEATURES
 No Output Filter Required
 Low EMI Design
 Low Quiescent Current: 4mA
 Low Shutdown Current: 1µA
 Wide Supply Voltage Range:
2.5 - 5.5 Volt
 2W Output Power into 4⦠Load
with THD<1% @ 5.0V
 THD+N as Low as 0.1%
 Small Form Factor...16 pin
MLP Package Only 4 x 4mm
 Built-in Clock Frequency
 Built-in Feedback Loop, Keep
High Audio Fidelity
 Fixed 20dB Gain
 Full 20 - 20kHz Audio
Bandwidth
 Shut-down Function
 Internal Thermal Shutdown
 High Efficiency: over 85%
through Modulation Scheme
and Class-D Operation
 Built-in De-Pop Circuit
APPLICATIONS
 Portable Speakers
 Portable DVD
 PMP / PMC
 Notebook PC
IN2-
IN2+
ENABLE
PACKAGE ORDER INFO
Plastic MLPQ 4mm x 4mm
TA (°C) LQ 16-Pin
RoHS Compliant / Pb-free
-40 to 85
LX1704ILQ
Note: Available in Tape & Reel. Append the letters âTRâ to the part
number. (i.e. LX1704ILQ-TR)
Copyright © 2009
Rev.1.4, 2009-02-23
Microsemi
Analog Mixed Signal Group
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, 800-877-6458, Fax: 714-893-2570
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