LX1702
TM
廬
1W Filter less Stereo Class-D Amplifier
P
RODUCTION
D
ATA
S
HEET
DESCRIPTION
KEY FEATURES
No Output Filter Required
Low EMI Design
Low Quiescent Current: 4mA
Low Shutdown Current: 1碌A(chǔ)
Wide Supply Voltage Range:
2.5-5.5 Volt
1W Output Power into 8鈩?Load
with THD<1% @ 5.0V
THD+N as low as 0.1%
Small Form Factor...16-pin
MLP Package only 4x4mm
Built-in Clock Frequency
Built-in Feedback Loop, Keep
High Audio Fidelity
Fixed 20dB Gain
Full 20-20KHz Audio
Bandwidth
Shutdown Function
Internal Thermal Shutdown
High Efficiency: over 85%
through Modulation Scheme
and Class-D Operation
Built-in De-Pop Circuit
APPLICATIONS
PVDD
The LX1702 family represents a
new generation of a fully integrated
audio stereo class-D amplifier from
Microsemi. This CMOS stereo class-D
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 LX1702 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 LX1702 features on
board, low Rdson, complementary
output MOSFET鈥檚 that reduces the need
for external components.
The LX1702 is offered in a small
footprint, low profile, 4mm x 4mm 16-
pin MLPQ.
WWW .
Microsemi
.C
OM
IMPORTANT:
For the most current data, consult
MICROSEMI鈥檚
website:
http://www.microsemi.com
PRODUCT HIGHLIGHT
Speaker Out 1
PVDD
PVSS1
VDD
IN1+
IN1-
OUT1+
PVDD1
OUT1-
PVSS3
OUT2-
VDD
IN1+
IN1-
IN2+
VSS
IN2-
PVDD2
Part
LX1702
OUT2+
PVSS2
EN
Speaker Out 2
Portable Speakers
Portable DVD
PMP / PMC
Notebook PC
IN2-
IN2+
ENABLE
PACKAGE ORDER INFO
T
A
(擄C)
0 to 70
LQ
Plastic MLPQ 4mm x 4mm
16-Pin
RoHS Compliant / Pb-free
LX1702
LX1702
LX1702CLQ
Note: Available in Tape & Reel. Append the letters 鈥淭R鈥?to
the part number. (i.e. LX1702CLQ-TR)
Copyright
漏
2005
Rev. 1.0, 2006-10-11
Microsemi
Integrated Products Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
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