Datasheet > NCP2823

NCP2823

更新时间： 2024-11-10 10:28:15

品牌	Logo	应用领域
安森美 - ONSEMI		音频放大器
页数	文件大小	规格书
11页	157K
描述
High Efficiency 3W Filterless Class D Audio Amplifier

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NCP2823 数据手册

NCP2823 Series

High Efficiency 3W

Filterless Class D Audio

Amplifier

The NCP2823A/B are cost effective mono audio power amplifiers

designed for portable electronic devices. NCP2823A is optimized for

8 W operation and NCP2823B can operate with speaker impedance

down to 4.0 W. For Instance, NCP2823B is capable of delivering 3 W

of continuous average power to a 4.0 W from a 5.0 V supply in a

Bridge Tied Load (BTL) configuration. Under the same conditions,

NCP2823A can provide 1.5 W to an 8.0 W BTL load with less than

10% THD+N. For cellular handsets or PDAs it offers space and cost

savings because no output filter is required when using inductive

transducers. With more than 90% efficiency and very low shutdown

current, it increases the lifetime of your battery and drastically lowers

the junction temperature.

NCP2823 processes analog inputs with a pulse width modulation

technique that lowers output noise and THD. The device allows

independent gain while summing signals from various audio sources.

Thus, in cellular handsets, the earpiece, the loudspeaker and even

melody ringer can be driven with a single NCP2823. Due to its low

26 mV noise floor, A−weighted, clean listening is guaranteed no matter

the load sensitivity.

http://onsemi.com

MARKING

DIAGRAM

9−PIN FLIP−CHIP CSP

FC SUFFIX

XXXG

AYWW

CASE 499AL

XXX

= QTA for NCP2823A

= PMA for NCP2823B

= Assembly Location

= Year

= Work Week

= Pb−Free Package

ORDERING INFORMATION

See detailed ordering and shipping information on page 10 of

this data sheet.

Features

• Optimized PWM Output Stage: Filterless Capability

• Externally gain setting

• Low consumption: 1.8 mA for NCP2823A

• High efficiency: up to 92%

• Large Output Power Capability: 2 W @ V = 5.0 V, 8.0 W

• High PSRR: up to −77 dB

• Fully Differential Capability: RF immunity

• Thermal and Auto recovery Short−Circuit Protection

• CMRR (−80 dB) Eliminates Two Input Coupling Capacitors

• Pin to Pin compatible with NCP2820 Flip−Chip

• These Devices are Pb−Free and are RoHS Compliant

1.45 mm

3.7 mm

Typical Applications

• Audio Amplifier for

♦ Cellular Phones

♦ Digital Cameras

♦ Personal Digital Assistant and Portable Media Player

♦ GPS

Publication Order Number:

February, 2010 − Rev. P0

NCP2823/D

12 3 4 5 6 7...11

中文翻译

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与NCP2823相关器件

型号	品牌	获取价格	描述	数据表
NCP2823_11	ONSEMI	获取价格	High Efficiency 3W Filterless Class D Audio Amplifier
NCP2823AFCCT2G	ONSEMI	获取价格	High Efficiency 3W Filterless Class D Audio Amplifier
NCP2823AFCT2G	ONSEMI	获取价格	High Efficiency 3W Filterless Class D Audio Amplifier
NCP2823BFCT1G	ONSEMI	获取价格	High Efficiency 3W Filterless Class D Audio Amplifier
NCP2823BFCT2G	ONSEMI	获取价格	High Efficiency 3W Filterless Class D Audio Amplifier
NCP2824	ONSEMI	获取价格	Non-Clip and Power Limit Mono Class D Amplifier with AGC
NCP2824FCT2G	ONSEMI	获取价格	Non-Clip and Power Limit Mono Class D Amplifier with AGC
NCP2830	ONSEMI	获取价格	1W Constant Filterless Class-D Audio Amplifier
NCP2830MUTXG	ONSEMI	获取价格	1W Constant Filterless Class-D Audio Amplifier
NCP2860	ONSEMI	获取价格	300 mA Very Low Noise, Low Dropout Linear Regulator

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