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參數(shù)資料
| 型號(hào)： | LM4870 |
| 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(guān)斷模式 |
| 文件頁數(shù)： | 3/8頁 |
| 文件大?。?/td> | 259K |
| 代理商： | LM4870 |
External Components Description
(Figure 1)
Components
1.
Functional Description
R
i
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
Application Information
section for
proper placement and selection of bypass capacitor.
2.
C
i
3.
4.
R
f
C
S
5.
C
B
Typical Performance Characteristics
THD+N vs Frequency
DS100094-9
THD+N vs Frequency
DS100094-10
THD+N vs Frequency
DS100094-11
THD+N vs Output Power
DS100094-12
THD+N vs Output Power
DS100094-13
THD+N vs Output Power
DS100094-14
Supply Current vs
Supply Voltage
DS100094-16
Power Derating Curve
DS100094-17
LM4870 Noise Floor
vs Frequency
DS100094-18
www.national.com
3
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LM4870M | 1.1W Audio Power Amplifier with Shutdown Mode |
| LM4871 | 1.1W Audio Power Amplifier with Shutdown Mode |
| LM4871N | 1.1W Audio Power Amplifier with Shutdown Mode |
| LM4871MX | 1.1W Audio Power Amplifier with Shutdown Mode |
| LM4871M | 1.1W Audio Power Amplifier with Shutdown Mode |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM4870M | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| LM4870MX | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| LM4871 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:3W Audio Power Amplifier with Shutdown Mode |
| LM4871_03 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:3W Audio Power Amplifier with Shutdown Mode |
| LM4871LD | 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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