參數(shù)資料
型號(hào): LM4834MWC
廠商: NATIONAL SEMICONDUCTOR CORP
元件分類(lèi): 音頻控制
英文描述: 2 CHANNEL(S), VOLUME CONTROL CIRCUIT, UUC
封裝: WAFER
文件頁(yè)數(shù): 6/15頁(yè)
文件大?。?/td> 479K
代理商: LM4834MWC
National P/N LM4834 - Boomer 1.75W Audio Power Amplifier with DC Volume Control and Microphone Preamp
LM4834 MDC
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LM4834 MWC
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General Description
The LM4834 is a monolithic integrated circuit that provides DC volume control, and a bridged audio power
amplifier capable of producing 1.75W into 4Ohm with less than 1.0% (THD). In addition, the
headphone/lineout amplifier is capable of driving 70 mW into 32Ohm with less than 0.1%(THD). The LM4834
incorporates a volume control and an input microphone preamp stage capable of driving a 1 kOhm load
impedance.
Boomer audio integrated circuits were designed specifically to provide high quality audio while requiring a
minimum amount of external components in surface mount packaging. The LM4834 incorporates a DC
volume control, a bridged audio power amplifier and a microphone preamp stage, making it optimally suited
for multimedia monitors and desktop computer applications.
The LM4834 features an externally controlled, low-power consumption shutdown mode, and both a power
amplifier and headphone mute for maximum system flexibility and performance.
Features
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PC98 Compliant
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"Click and Pop" suppression circuitry
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Stereo line level outputs with mono input capability for system beeps
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Microphone preamp with buffered power supply
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DC Volume Control Interface
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Thermal shutdown protection circuitry
Key Specification
THD at 1.1W continuous average output power into 8Ohm at 1kHz 0.5% (max)
Output Power into 4Ohm at 1.0% THD+N 1.75W (typ)
THD at 70mW continuous average output power into 32Ohm at 1kHz 0.1% (typ)
Shutdown Current 1.0A (max)
Supply Current 17.5mA (typ)
Applications
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Multimedia Monitors
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Desktop and Portable Computers
file:///H|/imaging/BITTING/cpl/20020808_1/08062002_10/NATL/08062002_HTML/LM4834.html (2 of 3) [09-Aug-2002 3:08:29 PM]
相關(guān)PDF資料
PDF描述
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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LM4835LQ/NOPB 功能描述:IC AMP AUDIO PWR 2.2W STER 28LLP RoHS:是 類(lèi)別:集成電路 (IC) >> 線(xiàn)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)
LM4835MT 功能描述:IC AMP AUDIO PWR 2.2W AB 28TSSOP RoHS:否 類(lèi)別:集成電路 (IC) >> 線(xiàn)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)
LM4835MT/NOPB 功能描述:IC AMP AUDIO PWR 2.2W AB 28TSSOP RoHS:是 類(lèi)別:集成電路 (IC) >> 線(xiàn)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)
LM4835MTE 功能描述:IC AMP AUDIO PWR 2.2W AB 28TSSOP RoHS:否 類(lèi)別:集成電路 (IC) >> 線(xiàn)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)