Datasheet > AS1706

AS1706

更新时间： 2022-12-20 06:17:07

品牌	Logo	应用领域
艾迈斯 - AMSCO		放大器功率放大器
页数	文件大小	规格书
17页	466K
描述
1.6W Audio Power Amplifiers

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AS1706 数据手册

Data Sheet

AS1701, AS1706

1.6W Audio Power Amplifiers

1 General Description

2 Key Features

ꢀ

2.7 to 5.5V (VDD) Single-Supply Operation

The AS1701 and AS1706 are 1.6W bridged audio power

amplifiers that provide excellent circuit reliability, provid-

ing a very low-cost solution by eliminating external com-

ponents when used with 2.7 to 5.5V-powered circuits.

Very High PSRR: Greater Than 65dB @ 217Hz

THD+Noise: 1.6W into 4Ω at 1%

The devices have superb total harmonic distortion

(THD) at high-power output and excellent power supply

rejection with 4- and 8Ω-loads.

No Output Coupling Capacitors Required

External Gain Configuration Capability

Low-Power Shutdown Mode: 10nA

Click and Pop Suppression

Integrated over-temperature and over-current protection

circuitry switch the devices off in case of an output

short-circuit. A digital input allows the devices to auto-

matically switch into shutdown mode. Click- and pop-

suppression circuitry reduces audible clicks and pops

during power-up and shutdown. The gain (AV) of the

devices is controlled using external resistors.

The AS1701/AS1706 are available in an 8-pin MSOP

package.

Over-Temperature and Over-Current Protection

Operating Temperature Range: -40 to +85°C

8-pin MSOP Package

3 Applications

The AS1701/AS1706 are ideal as audio front-ends for

battery powered audio devices such as MP3 and CD

players, mobile phones, PDAs, portable DVD players,

and any other hand-held battery-powered device.

Figure 1. Typical Configuration Block Diagram

VDD

10µF

20kΩ

VDD

CIN

RIN

Audio

Input

–

0.33µF

20kΩ

IN-

OUT+

40kΩ

IN+

40kΩ

RL =

4 or 8Ω

50kΩ

–

VDD/2

OUT-

0.1 to

1µF

BIAS

Av = -1

50kΩ

Bias

AS1701/

AS1706

SHDN

GND

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