參數(shù)資料
型號(hào)： LM4908MM/NOPB
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類： 音頻／視頻放大
英文描述： 0.157 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO8
封裝： MSOP-8
文件頁(yè)數(shù)： 17/21頁(yè)
文件大?。?/td> 935K
代理商： LM4908MM/NOPB
External Components Description (Figure 1)
Components
Functional Description
1. R
i
The inverting input resistance, along with R
f, set the closed-loop gain. Ri, along with Ci, form a high
pass filter with f
c = 1/(2
πR
iCi).
2. C
i
The input coupling capacitor blocks DC voltage at the amplifier’s input terminals. C
i, along with Ri,
create a highpass filter with f
C = 1/(2
πR
iCi). Refer to the section, Selecting Proper External
Components, for an explanation of determining the value of C
i.
3. R
f
The feedback resistance, along with R
i, set closed-loop gain.
4. C
S
This is the supply bypass capacitor. It provides power supply filtering. Refer to the Application
Information section for proper placement and selection of the supply bypass capacitor.
5. C
B
This is the half-supply bypass pin capacitor. It provides half-supply filtering. Refer to the section,
Selecting Proper External Components, for information concerning proper placement and selection
of C
B.
6. C
O
This is the output coupling capacitor. It blocks the DC voltage at the amplifier’s output and forms a high
pass filter with R
L at fO = 1/(2
πR
LCO)
7. R
B
This is the resistor which forms a voltage divider that provides 1/2 V
DD to the non-inverting input of the
amplifier.
Typical Performance
Characteristics
THD+N vs Frequency
V
DD = 2.6V, PWR = 15mW, RL =8
THD+N vs Frequency
V
DD = 2.6V, PWR = 15mW, RL =16
20075267
20075268
LM4908
www.national.com
5
相關(guān)PDF資料
PDF描述
LM4908MA/NOPB 0.157 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO8
LM4908LQ/NOPB 0.157 W, 2 CHANNEL, AUDIO AMPLIFIER, QCC8
LM4910MA/NOPB 0.035 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO8
LM4910MMX/NOPB 0.035 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO8
LM4911LD/NOPB 0.145 W, 2 CHANNEL, AUDIO AMPLIFIER, DSO10
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM4910 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Output Capacitor-less Stereo 35mW Headphone Amplifier
LM49100 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Mono Class AB Audio Sub-System with a True-Ground Headphone Amplifier
LM49100_0709 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Mono Class AB Audio Sub-System with a True-Ground Headphone Amplifier
LM49100GR 制造商:Rochester Electronics LLC 功能描述: 制造商:Texas Instruments 功能描述:AUDIO SUBSYSTEM SMD MICROARRAY25
LM49100GR/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(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*