Datasheet > APA0711

APA0711

更新时间： 2024-11-30 03:19:11

品牌	Logo	应用领域
茂达 - ANPEC		放大器功率放大器
页数	文件大小	规格书
29页	508K
描述
1.1W Mono Low-Voltage Audio Power Amplifier

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APA0711 数据手册

APA0710/0711

1.1W Mono Low-Voltage Audio Power Amplifier

Features

General Description

Operating Voltage : 2.6V-5.5V

TheAPA0710 is a bridged-tied load (BTL) or singled-

ended(SE)audiopower amplifierdevelopedespecially

for low-voltage applications where internal speakers

and external earphone operation are required. The

APA0711isaonlyBTLaudiopoweramplifier developed

especially for low-voltage applications where internal

speakers are required. Operating with a 5V supply,

theAPA0710/1 can deliver 1.1W of continuous power

into a BTL 8W load at 10% THD+N throughout voice

bandfrequencies.Although thisdeviceischaracterized

out to 20kHz,itsoperationisoptimizedfor narrowband

applications such as wireless communications. The

BTL configuration eliminates the need for external

coupling capacitorson the output inmost applications,

whichisparticularlyimportant forsmall battery-powered

equipment. A unique feature of theAPA0710 isthat it

allows the amplifier to switch from BTL to SE on the

fly when anearphonedrive isrequired. Thiseliminates

complicated mechanical switching or auxiliary devices

just to drive the external load. This device features a

shutdown mode for power-sensitive applications with

special depopcircuitrytoeliminatespeaker noisewhen

exiting shutdown mode. TheAPA0710/1 are available

in an 8-pin SOP and 8-pin MSOP-P with enhanced

thermal pad.

APA0710 Compatible with TPA711

APA0711 Compatible with TPA751

Bridge-TiedLoad (BTL) or Single-Ended (SE)

Modes Operation (for APA0710 only)

Supply Current

– I_DD=1.3mA at VDD=5V ,BTL mode

– I_DD=0.9mA at VDD=3.3V ,BTL mode

LowShutdown Current

– I_DD=0.1mA

LowDistortion

– 630mW, at VDD=5V, BTL, RL=8W

THD+N=0.15%

– 280mW, at VDD=3.3V, BTL, RL=8W

THD+N=0.15%

Output Power

at 1% THD+N

– 900mW, at VDD=5V, BTL, RL=8W

– 400mW, at VDD=3.3V, BTL, RL=8W

at 10% THD+N

–1.1W at VDD=5V, BTL, RL=8W

–480mW at VDD=3.3V, BTL, RL=8W

Depop Circuitry Integrated

Thermal Shutdown Protection and

Over Current Protection Circuitry

High supplyvoltage ripple rejection

Surface-Mount Packaging

– 8 pin MSOP-P (with enhanced thermal pad)

power package available

Applications

Mobil Phones

PDAs

Digital Camera

Portable Electronic Devices

– SOP-8 package

Lead FreeAvailable (RoHSCompliant)

ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and advise

customers to obtain the latest version of relevant information to verify before placing orders.

Rev. A.5 - Oct., 2005

www.anpec.com.tw

12 3 4 5 6 7...29

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