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參數(shù)資料
| 型號： | LM4881M |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | Dual 200 mW Headphone Amplifier with Shutdown Mode |
| 中文描述： | 0.3 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO8 |
| 封裝： | SOIC-8 |
| 文件頁數(shù)： | 4/11頁 |
| 文件大?。?/td> | 413K |
| 代理商： | LM4881M |
External Components Description
(Figure 1)
Compo-
nents
1. R
i
Functional Description
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
)
2. C
i
3. R
f
4. C
S
5. C
B
6. C
O
Typical Performance Characteristics
THD+N vs Frequency
DS100005-3
THD+N vs Frequency
DS100005-4
THD+N vs Frequency
DS100005-5
THD+N vs Frequency
DS100005-6
THD+N vs Frequency
DS100005-7
THD+N vs Frequency
DS100005-8
www.national.com
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM4881M/NOPB | 功能描述:音頻放大器 BOOMER DUAL 200MW 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 |
| LM4881MM | 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 |
| LM4881MM/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 |
| LM4881MM/SL110729 | 制造商:Texas Instruments 功能描述: |
| LM4881MMX | 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 |
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