LX1701CLQ MICROSEMI [Microsemi Corporation], LX1701CLQ Datasheet

LX1701CLQ

Manufacturer Part Number

LX1701CLQ

Description

2W Filterless Mono Class-D Audio Amplifier

Manufacturer

MICROSEMI [Microsemi Corporation]

Datasheet

1.LX1701CLQ.pdf (20 pages)

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Rev. 1.0a, 2004-07-09

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’s, web tablets

and other low power systems.

IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com

Audio

Input

The LX1701 family represents a

GAIN

INN

INP

Decoder

De-POP

Gain

VDD

11861 Western Avenue, Garden Grove CA. 92841 714-898-8121, FAX 714-893-2570

P R O D U C T H I G H L I G H T

D E S C R I P T I O N

VDD

Note: Available in Tape & Reel. Append the letters “TR” to the part number.

-40 to 85

VSS

(°C)

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

MOSFET’s that reduces the need for

external components.

footprint, low profile surface mountable

16-pin MLPQ package.

Clock

PWM

The LX1701 family provides very

The LX1701 is offered in a small

PVDD

PVSS

P A C K A G E O R D E R I N F O

Rdson,

LPF

Integrated Products Division

Microsemi

H-Bridge

PVDD

& Driver

LX1701

(i.e. LX1701CLQTR)

complementary

LX1701

Bare Die

OUTP

OUTN

2W Filterless Mono Class-D Audio Amplifier

output

LX1701CLQ

16-Pin

Plastic MLPQ

RODUCTION

A P P L I C A T I O N S / B E N E F I T S

No Output Filter Required

Low EMI Design

Low Quiescent Current: 2mA

Low Shutdown Current:1µA

Low And Wide Supply Voltage

Range: 1.8-6.0 Volt

2W Output Power Into 4Ω Load

With THD<1%

3W Into 2Ω With THD<1%

THD+N As Low As 0.09%

Small Form Factor: 16-pin MLPQ

Package: 4mmx4mm

-40 to +85°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 “POP” Noise

PDA's

Cell Phones

Portable Audio

Laptop Computer Speaker

Amplifier

LCD TV/Desktop Monitor

Speaker Amplifier

PC Audio Multimedia Amplifier

ATA

K E Y F E A T U R E S

HEET

LX1701

Page 1

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