عضویت 
ورود اعضا
راهنمای خرید
LX1704CLQ 2W Filter less Stereo Class-D Amplifier0 pages
LX1704
®
TM
2W Filter less Stereo Class-D Amplifier
P RODUCTION D ATA S HEET
The LX1704 family represents a
new generation of a fully integrated
audio stereo Class-D amplifier from
Microsemi. This CMOS stereo ClassD amplifier series is optimized for low
voltage, low power operation and
minimum system cost. The products
are ideal for use in battery powered
applications where low power consumption
is desirable such as: portable speakers,
DVDs, PMP, and other low power
systems.
The LX1704 family provides very
low quiescent current consumption
through the use of a proprietary output
modulation scheme. This technology
enables filterless operation in many
applications. The part features on board,
low Rdson, complementary output
MOSFET’s that reduces the need for
external components.
The LX1704 is offered in a small
footprint, low profile, 4mm x 4mm 16pin MLPQ.
IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com
PRODUCT HIGHLIGHT
Speaker Out 1
PVDD
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 4Ω 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
WWW . Microsemi .C OM
KEY FEATURES
DESCRIPTION
APPLICATIONS
VDD
IN1+
IN1-
PVDD
OUT2+
Speaker Out 2
EN
VSS
PVSS2
IN2+
IN1-
OUT2-
PVDD2
Part
LX1704
IN2-
IN1+
PVSS3
OUT1-
VDD
PVDD1
OUT1+
PVSS1
Portable Speakers
Portable DVD
PMP / PMC
Notebook PC
IN2ENABLE
IN2+
TA (°C)
LQ
LX1704
LX1704
PACKAGE ORDER INFO
Plastic MLPQ 4mm x 4mm
16-Pin
RoHS Compliant / Pb-free
-40 to 85
LX1704ILQ
Note: Available in Tape & Reel. Append the letters “TR” to the part
number. (i.e. LX1704ILQ-TR)
Copyright © 2009
Rev.1.4, 2009-02-23
Page 1
Microsemi
Analog Mixed Signal Group
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, 800-877-6458, Fax: 714-893-2570
