NCP2820D

更新时间： 2024-11-10 04:13:39

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
22页	288K
描述
2.65 W Filterless Class−D Audio Power Amplifier

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NCP2820D 数据手册

NCP2820

2.65 W Filterless Class−D

Audio Power Amplifier

The NCP2820 is a cost−effective mono Class−D audio power

amplifier capable of delivering 2.65 W of continuous average power

to 4.0 ꢀ from a 5.0 V supply in a Bridge Tied Load (BTL)

configuration. Under the same conditions, the output power stage can

provide 1.4 W to a 8.0 ꢀ BTL load with less than 1% THD+N. For

cellular handsets or PDAs it offers space and cost savings because no

output filter is required when using inductive tranducers. With more

than 90% efficiency and very low shutdown current, it increases the

lifetime of your battery and drastically lowers the junction

temperature.

The NCP2820 processes analog inputs with a pulse width

modulation technique that lowers output noise and THD when

compared to a conventional sigma−delta modulator. The device allows

independent gain while summing signals from various audio sources.

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

melody ringer can be driven with a single NCP2820. Due to its low

http://onsemi.com

MARKING

DIAGRAMS

9−PIN FLIP−CHIP CSP

FC SUFFIX

CASE 499AL

ZB MG

42ꢁ ꢂV noise floor, A−weighted, a clean listening is guaranteed no

matter the load sensitivity.

8 PIN UDFN 2x2.2

MU SUFFIX

Features

CASE 506AV

• Optimized PWM Output Stage: Filterless Capability

• Efficiency up to 90%

= Assembly Location

= Year

Low 2.5 mA Typical Quiescent Current

• Large Output Power Capability: 1.4 W with 8.0 ꢀ Load (CSP) and

THD + N < 1%

WW = Work Week

= Date Code

= Pb−Free Package

• Wide Supply Voltage Range: 2.5−5.5 V Operating Voltage

• High Performance, THD+N of 0.03% @ V = 5.0 V,

R = 8.0 ꢀ, P = 100 mW

out

• Excellent PSRR (−65 dB): No Need for Voltage Regulation

• Surface Mounted Package 9−Pin Flip−Chip CSPand UDFN8

• Fully Differential Design. Eliminates Two Input Coupling Capacitors

ORDERING INFORMATION

See detailed ordering and shipping information on page 20 of

this data sheet.

• Very Fast Turn On/Off Times with Advanced Rising and Falling

Gain Technique

• External Gain Configuration Capability

• Internally Generated 250 kHz Switching Frequency

Audio

Input

from

INP

INM

OUTM

OUTP

• Short Circuit Protection Circuitry

DAC

• “Pop and Click” Noise Protection Circuitry

• Pb−Free Packages are Available

Input from

Microcontroller

Applications

• Cellular Phone

GND

• Portable Electronic Devices

• PDAs and Smart Phones

• Portable Computer

1.6 mm

3.7 mm

Publication Order Number:

November, 2006 − Rev. 5

NCP2820/D

12 3 4 5 6 7...22

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与NCP2820D相关器件

型号	品牌	获取价格	描述	数据表
NCP2820FCT1	ONSEMI	获取价格	2.65 W Filterless Class−D Audio Power Amplifier
NCP2820FCT1G	ONSEMI	获取价格	2.65 W Filterless Class−D Audio Power Amplifier
NCP2820FCT2G	ONSEMI	获取价格	2.65 W Filterless Class−D Audio Power Amplifier
NCP2820MUTBG	ONSEMI	获取价格	2.65 W Filterless Class−D Audio Power Amplifier
NCP2821	ONSEMI	获取价格	2.65 W Filterless with Selectable Gain Class−D Audio Amplifier
NCP2821D	ONSEMI	获取价格	2.65 W Filterless with Selectable Gain Class−D Audio Amplifier
NCP2821FCT1G	ROCHESTER	获取价格	2.65W, 1 CHANNEL, AUDIO AMPLIFIER, BGA9, LEAD FREE, CSP-9
NCP2823	ONSEMI	获取价格	High Efficiency 3W Filterless Class D Audio Amplifier
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

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