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參數資料
| 型號： | LM4918 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | Stereo Audio Amp with AGC Control |
| 中文描述： | 立體聲音頻放大器的AGC控制 |
| 文件頁數： | 1/17頁 |
| 文件大小： | 646K |
| 代理商： | LM4918 |
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
j
Total quiescent power supply current
j
Total shutdown power supply current
0.3% (typ)
18mA (typ)
1μA (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
L
2004 National Semiconductor Corporation
DS200913
www.national.com
相關PDF資料 |
PDF描述 |
|---|---|
| LM4918LQ | Stereo Audio Amp with AGC Control |
| LM4924 | 2 Cell Battery, 40mW Per Channel Output Capacitor-Less(OCL) Stereo Headphone Audio Amplifier |
| LM4924MM | 2 Cell Battery, 40mW Per Channel Output Capacitor-Less(OCL) Stereo Headphone Audio Amplifier |
| LM4924SD | 2 Cell Battery, 40mW Per Channel Output Capacitor-Less(OCL) Stereo Headphone Audio Amplifier |
| LM4929 | Stereo 40mW Low Noise Headphone Amplifier with OCL Output |
相關代理商/技術參數 |
參數描述 |
|---|---|
| LM4918LQ | 制造商:Texas Instruments 功能描述:STEREO 1W AMPL AGC 4918 LLP-32 |
| LM4918LQ/NOPB | 功能描述:IC AMP AUDIO PWR 1.1W STER 32LLP RoHS:是 類別:集成電路 (IC) >> 線性 - 音頻放大器 系列:Boomer® 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:DirectDrive® 類型:H 類 輸出類型:耳機，2-通道（立體聲） 在某負載時最大輸出功率 x 通道數量:35mW x 2 @ 16 歐姆 電源電壓:1.62 V ~ 1.98 V 特點:I²C，麥克風，靜音，短路保護，音量控制 安裝類型:表面貼裝 供應商設備封裝:25-WLP（2.09x2.09） 封裝/外殼:25-WFBGA，WLCSP 包裝:帶卷 (TR) |
| 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 |
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