LX1704 Datasheet, PDF (1/12 Pages) Microsemi Corporation – 2W Filter less Stereo Class-D Amplifier

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 MOSFET’s 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 MICROSEMI’s website: http://www.microsemi.com
PRODUCT HIGHLIGHT
PVDD
Speaker Out 1
VDD
IN1+
IN1-
PVSS1
OUT2-
VDD
PVDD2
LX^P1^a7^rt04
IN1+
OUT2+
IN1-
PVSS2
PVDD
Speaker Out 2
KEY FEATURES
ƒ No Output Filter Required
ƒ Low EMI Design
ƒ Low Quiescent Current: 4mA
ƒ Low Shutdown Current: 1µA
ƒ Wide Supply Voltage Range:
2.5 - 5.5 Volt
ƒ 2W Output Power into 4Ω Load
with THD<1% @ 5.0V
ƒ THD+N as Low as 0.1%
ƒ Small Form Factor...16 pin
MLP Package Only 4 x 4mm
ƒ Built-in Clock Frequency
ƒ Built-in Feedback Loop, Keep
High Audio Fidelity
ƒ Fixed 20dB Gain
ƒ Full 20 - 20kHz Audio
Bandwidth
ƒ Shut-down Function
ƒ Internal Thermal Shutdown
ƒ High Efficiency: over 85%
through Modulation Scheme
and Class-D Operation
ƒ Built-in De-Pop Circuit
APPLICATIONS
ƒ Portable Speakers
ƒ Portable DVD
ƒ PMP / PMC
ƒ Notebook PC
IN2-
IN2+
ENABLE
PACKAGE ORDER INFO
Plastic MLPQ 4mm x 4mm
T_A (°C) LQ 16-Pin
RoHS Compliant / Pb-free
0 to 70
LX1704CLQ
Note: Available in Tape & Reel. Append the letters “TR” to the
part number. (i.e. LX1704CLQ-TR)
Copyright © 2005
Rev. 1.2, 2006-10-11
Microsemi
Integrated Products Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: [phone]
Page 1