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參數(shù)資料
| 型號： | LM4861 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | 1.1W Audio Power Amplifier with Shutdown Mode |
| 中文描述： | 1.1W音頻功率放大器關斷模式 |
| 文件頁數(shù)： | 4/8頁 |
| 文件大?。?/td> | 218K |
| 代理商： | LM4861 |
External Components Description
(Figures 1, 2)
Components
1. R
i
Functional Description
Inverting input resistance which sets the closed-loop gain in conjunction 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 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
).
Feedback resistance which sets closed-loop gain in conjunction with R
i
.
Supply bypass capacitor which provides power supply filtering. Refer to the
Application Information
section for proper placement and selection of supply bypass capacitor.
Bypass pin capacitor which provides half supply filtering. Refer to the
Application Information
section for
proper placement and selection of bypass capacitor.
C
f
in conjunction with R
f
creates a low-pass filter which bandwidth limits the amplifier and prevents possible
high frequency oscillation bursts.
f
C
= 1/(2
π
R
f
C
f
)
2. C
i
3. R
f
4. C
S
5. C
B
6. C
f
(Note 9)
Note 9:
Optional component dependent upon specific design requirements. Refer to the
Application Information
section for more information.
Typical Performance Characteristics
THD+N vs Frequency
DS011986-5
THD+N vs Frequency
DS011986-6
THD+N vs Frequency
DS011986-7
THD+N vs Output Power
DS011986-8
THD+N vs Output Power
DS011986-9
THD+N vs Output Power
DS011986-10
www.national.com
4
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| LM4861M | 1.1W Audio Power Amplifier with Shutdown Mode |
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| LM4861_03 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:1.1W Audio Power Amplifier with Shutdown Mode |
| LM4861M | 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產品: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 |
| LM4861M | 制造商:Texas Instruments 功能描述:AMP AUDIO 0.5W SMD 4861 SOIC8 |
| LM4861M/NOPB | 功能描述:音頻放大器 1.1W AUDIO POWER AMP RoHS:否 制造商:STMicroelectronics 產品: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 |
| LM4861M-NOPB | 制造商:TI 制造商全稱:Texas Instruments 功能描述:LM4861 1.1W Audio Power Amplifier with Shutdown Mode |
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