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參數(shù)資料
| 型號： | LM4924SD |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 2 Cell Battery, 40mW Per Channel Output Capacitor-Less(OCL) Stereo Headphone Audio Amplifier |
| 中文描述： | 0.04 W, 2 CHANNEL, AUDIO AMPLIFIER, DSO10 |
| 封裝： | LLP-10 |
| 文件頁數(shù)： | 13/16頁 |
| 文件大?。?/td> | 425K |
| 代理商： | LM4924SD |
Application Information
(Continued)
The LM4924 is unity-gain stable and requires no external
components besides gain-setting resistors, input coupling
capacitors, and proper supply bypassing in the typical appli-
cation. However, if a very large closed-loop differential gain
is required, a feedback capacitor (C
f
) may be needed to
bandwidth limit the amplifier. This feedback capacitor cre-
ates a low pass filter that eliminates possible high frequency
oscillations. Care should be taken when calculating the -3dB
frequency in that an incorrect combination of R
and C
will
cause frequency response roll off before 20kHz. A typical
combination of feedback resistor and capacitor that will not
produce audio band high frequency roll off is Rf = 20k
and
C
f
= 25pF. These components result in a -3dB point of
approximately 320kHz.
REFERENCE DESIGN BOARD and LAYOUT GUIDELINES
MSOP & SD BOARDS
(Note: R
PU
2 is not required. It is used for test measurement purposes only.)
20121030
FIGURE 4.
L
www.national.com
13
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM4924SD/NOPB | 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: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| LM4924SDBD | 功能描述:BOARD EVALUATION LM4924SD RoHS:否 類別:編程器，開發(fā)系統(tǒng) >> 評估板 - 音頻放大器 系列:Boomer® 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:1 系列:- |
| LM4924SDX | 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: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| LM4924SDX/NOPB | 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: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| LM4925 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:2 Cell, Single Ended Output, 40mW Stereo Headphone Audio Amplifier |
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