Datasheet > NCP4894

NCP4894

更新时间： 2024-02-23 21:29:09

品牌	Logo	应用领域
安森美 - ONSEMI		放大器功率放大器
页数	文件大小	规格书
18页	165K
描述
1.8 Watt Differential Audio Power Amplifier with Selectable Shutdown

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NCP4894 数据手册

NCP4894

1.8 Watt Differential Audio

Power Amplifier with

Selectable Shutdown

The NCP4894 is a differential audio power amplifier designed for

portable communication device applications. This feature and the

excellent audio characteristics of the NCP4894 are a guarantee of a

high quality sound, for example, in mobile phones applications. With

a 10% THD+N value the NCP4894 is capable of delivering 1.8 W of

continuous average power to an 8.0 W load from a 5.5 V power

supply. With the same load conditions and a 5.0 V battery voltage, it

ensures 1.0 W to be delivered with less than 0.01% distortion.

The NCP4894 provides high quality audio while requiring few

external components and minimal power consumption. It features a

low−power consumption shutdown mode.

To be flexible, shutdown may be enabled by either a logic high or

low depending on the voltage applied on the SD MODE pin.

The NCP4894 contains circuitry to prevent from “pop and click”

noise that would otherwise occur during turn−on and turn−off

transitions.

http://onsemi.com

MARKING

DIAGRAMS

9−PIN FLIP−CHIP

FC SUFFIX

xxxG

AYWW

CASE 499AL

xxxx

AYWG

Micro−10

DM SUFFIX

CASE 846B

For maximum flexibility, the NCP4894 provides an externally

controlled gain (with resistors), as well as an externally controlled

turn−on time (with bypass capacitor).

Due to its excellent PSRR, it can be directly connected to the

battery, saving the use of an LDO.

This device is available in 9−Pin Flip−Chip, Micro−10 and DFN10

DFN10

MN SUFFIX

CASE 485C

xxx

ALYWG

3x3 mm packages.

Features

xxxx

= Specific Device Code

= Assembly Location

= Wafer Lot

• Differential Amplification

• Shutdown High or Low Selectivity

• 1.0 W to an 8.0 W Load from a 5.0 V Power Supply

• Superior PSRR: Direct Connection to the Battery

• “Pop and Click” Noise Protection Circuit

• Ultra Low Current Shutdown Mode

• 2.2 V−5.5 V Operation

= Year

W, WW = Work Week

= Pb−Free Package

(Note: Microdot may be in either location)

ORDERING INFORMATION

See detailed ordering and shipping information in the package

dimensions section on page 14 of this data sheet.

• External Gain Configuration Capability

• External Turn−on Configuration Capability

• Thermal Overload Protection Circuitry

• Pb−Free Packages are Available

Typical Applications

• Portable Electronic Devices

• PDAs

• Mobile Phones

Semiconductor Components Industries, LLC, 2005

Publication Order Number:

November, 2005 − Rev. 8

NCP4894/D

12 3 4 5 6 7...18

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与NCP4894相关器件

型号	品牌	获取价格	描述	数据表
NCP4894/D	ETC	获取价格	1W Differential Audio Power Amplifier
NCP4894_07	ONSEMI	获取价格	1.8 Watt Differential Audio Power Amplifier with Selectable Shutdown
NCP4894DMR2	ONSEMI	获取价格	1.8 Watt Differential Audio Power Amplifier with Selectable Shutdown
NCP4894DMR2G	ONSEMI	获取价格	1.8 Watt Differential Audio Power Amplifier with Selectable Shutdown
NCP4894FCT1	ONSEMI	获取价格	1.8 Watt Differential Audio Power Amplifier with Selectable Shutdown
NCP4894FCT1G	ONSEMI	获取价格	1.8 Watt Differential Audio Power Amplifier with Selectable Shutdown
NCP4894MNR2	ONSEMI	获取价格	1.8 Watt Differential Audio Power Amplifier with Selectable Shutdown
NCP4894MNR2G	ONSEMI	获取价格	1.8 Watt Differential Audio Power Amplifier with Selectable Shutdown
NCP4896	ONSEMI	获取价格	1.0 Watt Audio Power Amplifier with Earpiece Driving Capability
NCP4896/D	ETC	获取价格	1W Audio Amplifier with Earpiece Driving Capability

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