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LX1701 Datasheet

  • LX1701

  • Microsemi Corporation [2W Filterless Mono Class-D Audio Amp...

  • 445.30KB

  • MICROSEMI

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LX1701
TM
廬
2W Filterless Mono Class-D Audio Amplifier
P
RODUCTION
D
ATA
S
HEET
DESCRIPTION
KEY FEATURES
No Output Filter Required
Low EMI Design
Low Quiescent Current: 2mA
Low Shutdown Current:1碌A
Low And Wide Supply Voltage
Range: 1.8-6.0 Volt
2W Output Power Into 4鈩?Load
With THD<1%
3W Into 2鈩?With THD<1%
THD+N As Low As 0.09%
Small Form Factor: 16-pin MLPQ
Package: 4mmx4mm
-40 to +85擄C Operating Range
Only
1
External Component
Needed, No Input AC Coupling
Capacitor Required, Under
Certain Conditions
Built-in Clock Frequency 200KHz
Built-in Feedback Loop, Allows
High Audio Fidelity
14dB/8dB Gain Selectable
20/300Hz Bandwidth Selectable
Shut-down Function
Internal Thermal Shut-down
High Efficiency: 85% Through
Modulation Scheme And Class-D
Operation
Built-in De-pop Circuit, No Turn
ON/OFF 鈥淧OP鈥?Noise
The LX1701 family represents a
new generation of a fully integrated
audio mono class-D amplifier from
Microsemi. This CMOS monolithic
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 cell phones, PDA鈥檚, web tablets
and other low power systems.
The LX1701 family provides very
low quiescent current consumption
through the use of a proprietary output
modulation scheme. This technology
enables filter-less operation in many
applications. The part features on board,
low Rdson, complementary output
MOSFET鈥檚 that reduces the need for
external components.
The LX1701 is offered in a small
footprint, low profile surface mountable
16-pin MLPQ package.
WWW .
Microsemi
.C
OM
IMPORTANT:
For the most current data, consult
MICROSEMI鈥檚
website:
http://www.microsemi.com
PRODUCT HIGHLIGHT
PVDD
VDD
PVDD
GAIN
Clock
Gain
Decoder
INP
Audio
Input
OUTP
APPLICATIONS/BENEFITS
+
INN
PWM
H-Bridge
& Driver
_
VDD
OUTN
LPF
LPF
De-POP
PDA's
Cell Phones
Portable Audio
Laptop Computer Speaker
Amplifier
LCD TV/Desktop Monitor
Speaker Amplifier
PC Audio Multimedia Amplifier
LX1701
VSS
PVSS
LX1701
LX1701
PACKAGE ORDER INFO
T
J
(擄C)
-40 to 85
Bare Die
LX1701
LQ
16-Pin
Plastic MLPQ
LX1701CLQ
Note: Available in Tape & Reel. Append the letters 鈥淭R鈥?to the part number.
(i.e. LX1701CLQTR)
Copyright
漏
2004
Rev. 1.0a, 2004-07-09
Microsemi
Integrated Products Division
11861 Western Avenue, Garden Grove CA. 92841 714-898-8121, FAX 714-893-2570
Page 1

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