Datasheet > SM6800A

SM6800A

更新时间： 2024-11-10 21:55:35

品牌	Logo	应用领域
NPC		放大器移动电话
页数	文件大小	规格书
12页	171K
描述
Class-D Mono Amplifier for Mobile Telephones

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SM6800A 数据手册

SM6800A

Class-D Mono Ampliﬁer for Mobile Telephones

OVERVIEW

The SM6800A is an analog-input, class-D mono ampliﬁer. Class-D operation provides high efﬁciency and low

power consumption. The device also incorporates a selectable real-time operation dynamic range compression

function that effectively suppresses the distortion in the saturation level region output by soft-clipping, boost-

ing the average sound pressure from the speaker during playback. It also incorporates an input equalizer pin for

output speaker frequency characteristics adjustment. These features make the device ideal for use in mobile

telephones and speaker applications requiring miniaturization and high-efﬁciency. The output stage has a BTL

output conﬁguration where the output waveform inverts only the modulation components, enabling direct drive

connection, without using an LC ﬁlter, to a dynamic speaker. The device is available in miniature 20-pin QFN

packages, and requires only a peripheral chip capacitor to form a miniature ampliﬁer circuit.

FEATURES

PINOUT

^ꢀOperating supply voltage: 2.7 to 4.3V

(Top view)

^ꢀLow current consumption: 4.8mA (V = 3.6V)

^ꢀOutput power: 0.7W (V = 3.6V, 8Ω load)

^ꢀOutput fundamental frequency: 125kHz

^ꢀGain

20 19 18 17 16

• 4.5dB (Normal)

• 12dB to 4.5dB automatic adjustment in

response to the input level

VDD1

EQP

EQN

VSS1

VDD3

OUTP

VSS2

OUTN

VDD2

(Dynamic range compression mode)

^ꢀSilicon-gate CMOS process

^ꢀPackage: 20-pin QFN

7 8 9 10

APPLICATIONS

^ꢀCellular phone

^ꢀPDA

^ꢀDigital still camera

PACKAGE DIMENSIONS

(Unit: mm)

ORDERING INFORMATION

4.20 0.20

4.00 0.10

Device

Package

SM6800AB

20-pin QFN

0.50

0.60 0.10

0.05

0.22 0.05

0.05

NIPPON PRECISION CIRCUITS INC.—1

12 3 4 5 6 7...12

中文翻译

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