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參數(shù)資料
| 型號： | LM4808MM |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | Dual 105 mW Headphone Amplifier |
| 中文描述： | 0.15 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO8 |
| 封裝： | MSOP-8 |
| 文件頁數(shù)： | 4/13頁 |
| 文件大?。?/td> | 674K |
| 代理商： | LM4808MM |
External Components Description
(Figure 1)
Compo-
nents
Functional Description
1. R
i
Inverting input resistance which sets the closed-loop gain in conjuction with R
f
. This resistor also
forms a high pass filter with C
i
at f
c
= 1 / (2
π
R
i
C
i
).
Input coupling capacitor which blocks the DC voltage at the amplifier’s input terminals. Also creates a
highpass filter with R
i
at f
c
= 1 / (2
π
R
i
C
i
). Refer to the section,
Proper Selection of External
Components,
for and explanation of how to determine the value of C
i
.
Feedback resistance which sets closed-loop gain in conjuction with R
i
.
Supply bypass capacitor which provides power supply filtering. Refer to the
Application Information
section for proper placement and selection of the supply bypass capacitor.
Bypass pin capacitor which provides half-supply filtering. Refer to the section,
Proper Selection of
External Components,
for information concerning proper placement and selection of C
B
.
Output coupling capacitor which blocks the DC voltage at the amplifier’s output. Forms a high pass
filter with R
L
at f
O
= 1/(2
π
R
L
C
O
)
Resistor which forms a voltage divider that provides a half-supply DC voltage to the non-inverting
input of the amplifier.
2. C
i
3. R
f
4. C
S
5. C
B
6. C
O
7. R
B
Typical Performance Characteristics
THD+N vs Frequency
DS101276-3
THD+N vs Frequency
DS101276-4
THD+N vs Frequency
DS101276-5
THD+N vs Frequency
DS101276-6
THD+N vs Frequency
DS101276-7
THD+N vs Frequency
DS101276-8
L
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM4808MM/NOPB | 功能描述:音頻放大器 LM4808 Dual 105 Mw Headphone Amp 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 |
| LM4808MMX | 制造商:Texas Instruments 功能描述:Audio Amp Headphone 2-CH Stereo 0.15W Class-AB 8-Pin MSOP T/R |
| LM4808MMX/NOPB | 功能描述:音頻放大器 LM4808 Dual 105 Mw Headphone Amp 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 |
| LM4808MX | 制造商:Texas Instruments 功能描述:Audio Amp Headphone 2-CH Stereo 0.15W Class-AB 8-Pin SOIC N T/R |
| LM4808MX/NOPB | 功能描述:音頻放大器 LM4808 Dual 105 Mw Headphone Amp 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 |
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