參數(shù)資料
型號(hào)： LM4858LD/NOPB
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類(lèi)： 音頻／視頻放大
英文描述： 1.7 W, 2 CHANNEL, AUDIO AMPLIFIER, DSO14
封裝： 0.118 INCH, 0.80 MM PITCH, LLP-14
文件頁(yè)數(shù)： 1/17頁(yè)
文件大?。?/td> 683K
代理商： LM4858LD/NOPB
LM4858
Mono 1.5 W / Stereo 300mW Power Amplifier
General Description
The LM4858 is an audio power amplifier capable of deliver-
ing 1.5W (typ) of continuous average power into a mono 4
bridged-tied load (BTL) with 1% THD+N or 95mW per chan-
nel of continuous average power into stereo 32
single-
ended (SE) loads with 1% THD+N, using a 5V power supply.
The LM4858 can automatically switch between mono BTL
and stereo SE modes utilizing a headphone sense pin. It is
ideal for any system that provides both a monaural speaker
output and a stereo line or headphone output
Boomer audio power amplifiers were designed specifically to
provide high quality output power with a minimal amount of
external components. Since the LM4858 does not require
bootstrap capacitors or snubber networks, it is optimally
suited for low-power portable systems.
The LM4858 features an externally controlled, micropower
consumption shutdown mode and thermal shutdown protec-
tion. The unity-gain stable LM4858’s gain is set by external
gain-setting resistors
Key Specifications
n
Output Power at 1% THD+N, 1kHz:
n
LM4858LD 3
BTL
1.9W (typ)
n
LM4858LD 4
BTL
1.7W (typ)
n
LM4858MM 4
BTL
1.5W (typ)
n
LM4858MM,LD 8
BTL
1.1W (typ)
n
LM4858MM,LD 8
SE
300mW (typ)
n
LM4858MM,LD 32
SE
95mW (typ)
n
THD+N at 1kHz, 95mW into 32
SE
1% (typ)
n
Single Supply Operation
2.4 to 5.5V
n
Shutdown Current
18A (typ)
Features
n
Mono 1.5W BTL or stereo 300mW output
n
Logic controlled headphone sense
n
“Click and pop” suppression circuitry
n
No bootstrap capacitors required
n
Thermal shutdown protection
n
Unity-gain stable
n
Available in space-saving MSOP and LLP packaging
Applications
n
Portable computers
n
Desktop computers
n
PDA’s
n
Handheld games
Connection Diagrams
20064729
Top View
10 Lead MSOP
Order Number LM4858MM
See NS Package Number MUB10A
20064728
Top View
14 Lead LLP
Order Number LM4858LD
See NS Package Number LDA14A
Boomer is a registered trademark of National Semiconductor Corporation.
May 2003
LM4858
Mono
1.
5
W
/
Stereo
300mW
Power
Amplifier
2003 National Semiconductor Corporation
DS200647
www.national.com
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM4858MM 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Mono 1.5 W / Stereo 300mW Power Amplifier
LM4858MM/NOPB 功能描述:IC AMP AUDIO PWR 1.9W AB 10MSOP RoHS:是 類(lèi)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(lèi)型:H 類(lèi) 輸出類(lèi)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(lèi)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)
LM4859 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Stereo 1.2W Audio Sub-system with 3D Enhancement
LM4859_05 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Stereo 1.2W Audio Sub-system with 3D Enhancement
LM4859SP 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(lèi)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
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