參數(shù)資料
型號(hào): LM4880MDA
廠商: NATIONAL SEMICONDUCTOR CORP
元件分類: 音頻/視頻放大
英文描述: 0.325 W, 2 CHANNEL, AUDIO AMPLIFIER, UUC
封裝: DIE
文件頁(yè)數(shù): 1/15頁(yè)
文件大?。?/td> 418K
代理商: LM4880MDA
LM4880
Dual 250 mW Audio Power Amplifier with Shutdown
Mode
General Description
The LM4880 is a dual audio power amplifier capable of deliv-
ering typically 250mW per channel of continuous average
power to an 8
load with 0.1% THD+N using a 5V power
supply.
Boomer audio power amplifiers were designed specifically to
provide high quality output power with a minimal amount of
external components using surface mount packaging.
Since the LM4880 does not require bootstrap capacitors or
snubber networks, it is optimally suited for low-power por-
table systems.
The LM4880 features an externally controlled, low-power
consumption shutdown mode, as well as an internal thermal
shutdown protection mechanism.
The unity-gain stable LM4880 can be configured by external
gain-setting resistors.
Key Specifications
n
THD+N at 1kHz at 200mW continuous average output
power into 8
: 0.1% (max)
n
THD+N at 1kHz at 85mW continuous average output
power into 32
: 0.1% (typ)
n
Output power at 10% THD+N at 1kHz into 8
:
325mW (typ)
n
Shutdown current: 0.7A (typ)
n
2.7V to 5.5V supply voltage range
Features
n
No bootstrap capacitors or snubber circuits are
necessary
n
Small Outline (SO) and DIP packaging
n
Unity-gain stable
n
External gain configuration capability
Applications
n
Headphone Amplifier
n
Personal Computers
n
CD-ROM Players
Typical Application
Boomer is a registered trademark of National Semiconductor Corporation.
DS012343-1
*Refer to the Application Information section for information concerning proper selection of the input and output coupling capacitors.
FIGURE 1. Typical Audio Amplifier Application Circuit
August 2000
LM4880
Boomer
Audio
Power
Amplifier
Series
Dual
250
mW
Audio
Power
Amplifier
with
Shutdown
Mode
2000 National Semiconductor Corporation
DS012343
www.national.com
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM4880MX 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
LM4880MX/NOPB 功能描述:音頻放大器 Dual 200 mW Audio Pwr Amp RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
LM4880N 功能描述:IC AMP AUDIO PWR .325W STER 8DIP RoHS:否 類別:集成電路 (IC) >> 線性 - 音頻放大器 系列:Boomer® 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:DirectDrive® 類型:H 類 輸出類型:耳機(jī),2-通道(立體聲) 在某負(fù)載時(shí)最大輸出功率 x 通道數(shù)量:35mW x 2 @ 16 歐姆 電源電壓:1.62 V ~ 1.98 V 特點(diǎn):I²C,麥克風(fēng),靜音,短路保護(hù),音量控制 安裝類型:表面貼裝 供應(yīng)商設(shè)備封裝:25-WLP(2.09x2.09) 封裝/外殼:25-WFBGA,WLCSP 包裝:帶卷 (TR)
LM4880-SH2-R 制造商:UTC-IC 制造商全稱:UTC-IC 功能描述:DUAL 250mW AUDIO POWER AMPLIFIER WITH SHUTDOWN MODE
LM4880-SH2-T 制造商:UTC-IC 制造商全稱:UTC-IC 功能描述:DUAL 250mW AUDIO POWER AMPLIFIER WITH SHUTDOWN MODE