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參數(shù)資料
| 型號(hào)： | LM4918LQ/NOPB |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 音頻控制 |
| 英文描述： | 2 CHANNEL(S), VOLUME CONTROL CIRCUIT, QCC32 |
| 封裝： | LLP-32 |
| 文件頁(yè)數(shù)： | 1/17頁(yè) |
| 文件大?。?/td> | 646K |
| 代理商： | LM4918LQ/NOPB |
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LM4918
Stereo Audio Amp with AGC Control
General Description
The LM4918 is a monolithic integrated circuit that provides a
automatic gain control (AGC), and stereo bridged audio
power amplifiers capable of producing 1W into 8
with less
than 1.0% THD.
Boomer audio integrated circuits were designed specifically
to provide high quality audio while requiring a minimum
amount of external components. The LM4918 incorporates a
AGC and stereo bridged audio power amplifiers making it
optimally suited for multimedia monitors, portable radios,
desktop and portable computer applications.
The LM4918 features an externally controlled, low-power
consumption shutdown mode, and a power amplifier mute
for maximum system flexibility and performance.
Key Specifications
j THD+N at 1kHz, 1W, 8
0.3% (typ)
j Total quiescent power supply current
18mA (typ)
j Total shutdown power supply current
1A (typ)
Features
n
0.75dB per step/32step AGC Control Interface
n
Automatic Gain Control Circuitry
n
Stereo Bridged power amplifiers
n
“Click and pop” suppression circuitry
n
Thermal shutdown protection circuitry
n
Selectable Auto Detect Std-by mode and Logic control
Applications
n
Portable Computers
n
Desktop Computers
n
Multimedia monitors
Typical Application
Boomer is a registered trademark of National Semiconductor Corporation.
20091301
FIGURE 1. Typical Audio Amplifier Application Circuit
February 2004
LM4918
Stereo
Audio
Amp
with
AGC
Control
2004 National Semiconductor Corporation
DS200913
www.national.com
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| LM4919 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:1.5V, Mono 85mW BTL Output, 14mW Stereo Headphone Audio Amplifier |
| LM4919A WAF | 制造商:Texas Instruments 功能描述: |
| LM4919MM | 制造商:Texas Instruments 功能描述:AMP STEREO H/P 1.5V 14MW SMD 4919 |
| LM4919MM/NOPB | 功能描述:IC AMP AUDIO MONO/STER AB 10MSOP RoHS:是 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) |
| LM4919MMBD | 功能描述:BOARDS EVALUATION LM4919MM RoHS:否 類別:編程器，開(kāi)發(fā)系統(tǒng) >> 評(píng)估板 - 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:1 系列:- |
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