Datasheet > NCP2817

NCP2817

更新时间： 2024-11-09 01:19:11

品牌	Logo	应用领域
安森美 - ONSEMI		/
页数	文件大小	规格书
10页	101K
描述
Headphone Amplifier

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NCP2817 数据手册

NCP2817

NOCAP] LongPlay

Headphone Amplifier

NCP2817 is a dual LongPlay true ground headphone amplifier

designed for portable communication device applications such as

mobile phones. This part is capable of delivering typical 27 mW of

continuous average power into a 32 W load from a 1.8 V power supply

with a THD+N of 1%.

Based on the power supply delivered to the device, an internal

power management block generates a symmetrical positive and

negative voltage. Thus, the internal amplifiers provide outputs

referenced to Ground and the losses are reduced which helps to

increase the battery life. In this NOCAP configuration, the two

external heavy coupling capacitors can be removed. It offers

significant space and cost savings compared to a typical stereo

application.

www.onsemi.com

MARKING

DIAGRAM

12 PIN CSP

FC SUFFIX

CASE 499BJ

817BC

ALYWW

= Assembly Location

= Wafer Lot

= Year

NCP2817 is available with internal gain of −1.5 V/V. It reaches a

superior −100 dB PSRR and noise floor. Thus, it offers high fidelity

audio sound, as well as a direct connection to the battery. It contains

circuitry to prevent from “Pop & Click” noise that would otherwise

occur during turn−on and turn−off transitions. The device is available

in 12 bump CSP package (1.62 x 1.22, 0.4P) which helps to save space

on the board.

WW = Work Week

= Pb−Free Package

PIN ASSIGNMENT

Features

• NOCAP Output Eliminates DC−Blocking Capacitors:

♦ Saves Board Area

CPM

PVM

INL

INR

♦ Saves Component Cost

♦ No Low−Frequency Response Attenuation

PGND

/SD

AGND

SGND

• LongPlay Architecture: Increase the Battery Life

• High PSRR (−100 dB): Direct Connection to the Battery

• High SNR Performance (100 dB)

CPP

OUTL

OUTR

• “Pop and Click” Noise Protection Circuitry

• Internal Gain (−1.5 V/V) or External Adjustable Gain

• Ultra Low Current Shutdown Mode

• High Impedance Mode

(Top View)

12−Pin 1.2 x 1.6 mm CSP

ORDERING INFORMATION

See detailed ordering and shipping information on page 9 of

this data sheet.

• 1.6 V − 5.5 V Operation

• Thermal Overload Protection Circuitry

• CSP 1.62 x 1.22, 0.4P

• These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS

Compliant

Typical Applications

• Headset Audio Amplifier for

♦ Cellular Phones

♦ MP3 player

♦ Personal Digital Assistant and Portable Media Player

♦ Portable devices

Publication Order Number:

November, 2015 − Rev. 0

NCP2817/D

12 3 4 5 6 7...10

中文翻译

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NCP2817BFCCT2G	ONSEMI	获取价格	Headphone Amplifier
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NCP2820AFCT2G	ROCHESTER	获取价格	2.63 W, 1 CHANNEL, AUDIO AMPLIFIER, PBGA9, LEAD FREE, FCSP-9
NCP2820AFCT2G	ONSEMI	获取价格	音频功率放大器，D 级，2.65 W，无滤波器，单声道
NCP2820D	ONSEMI	获取价格	2.65 W Filterless Class−D Audio Power Amplifier
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

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