APA0711K Просмотр технического описания (PDF) - Anpec Electronics

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APA0711K

1.1W Mono Low-V oltage Audio Power Amplifier

Anpec Electronics 

APA0710/0711

1.1W Mono Low-Voltage Audio Power Amplifier

Features

General Description

• Operating Voltage : 2.6V-5.5V

• APA0710 Compatible with TPA711

APA0711 Compatible with TPA751

• Bridge-Tied Load (BTL) or Single-Ended (SE)

Modes Operation (for APA0710 only)

• Supply Current

– IDD=1.3mA at VDD=5V ,BTL mode

– IDD=0.9mA at VDD=3.3V ,BTL mode

• Low Shutdown Current

– IDD=0.1µA

• Low Distortion

– 630mW, at VDD=5V, BTL, RL=8Ω

THD+N=0.15%

– 280mW, at VDD=3.3V, BTL, RL=8Ω

THD+N=0.15%

• Output Power

at 1% THD+N

– 900mW, at VDD=5V, BTL, RL=8Ω

– 400mW, at VDD=3.3V, BTL, RL=8Ω

at 10% THD+N

–1.1W at VDD=5V, BTL, RL=8Ω

–480mW at VDD=3.3V, BTL, RL=8Ω

• Depop Circuitry Integrated

• Thermal Shutdown Protection and

Over Current Protection Circuitry

• High supply voltage ripple rejection

• Surface-Mount Packaging

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

power package available

– SOP-8 package

• Lead Free Available (RoHS Compliant)

The APA0710 is a bridged-tied load (BTL) or singled-

ended (SE) audio power amplifier developed especially

for low-voltage applications where internal speakers

and external earphone operation are required. The

APA0711 is a only BTL audio power amplifier developed

especially for low-voltage applications where internal

speakers are required. Operating with a 5V supply,

the APA0710/1 can deliver 1.1W of continuous power

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

band frequencies. Although this device is characterized

out to 20kHz,its operation is optimized for narrow band

applications such as wireless communications. The

BTL configuration eliminates the need for external

coupling capacitors on the output in most applications,

which is particularly important for small battery-powered

equipment. A unique feature of the APA0710 is that it

allows the amplifier to switch from BTL to SE on the

fly when an earphone drive is required. This eliminates

complicated mechanical switching or auxiliary devices

just to drive the external load. This device features a

shutdown mode for power-sensitive applications with

special depop circuitry to eliminate speaker noise when

exiting shutdown mode. The APA0710/1 are available

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

thermal pad.

Applications

• Mobil Phones

• PDAs

• Digital Camera

• Portable Electronic Devices

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.

Copyright © ANPEC Electronics Corp.

1

Rev. A.5 - Oct., 2005

www.anpec.com.tw

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