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參數(shù)資料
| 型號： | LM4862 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | 675 mW Audio Power Amplifier with Shutdown Mode |
| 中文描述： | 675毫瓦音頻功率放大器關(guān)斷模式 |
| 文件頁數(shù)： | 3/10頁 |
| 文件大小： | 262K |
| 代理商： | LM4862 |
Automatic Switching Circuit
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 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 an explanation of how to determine the value of C
i
.
Feedback resistance which sets the closed-loop gain in conjunction with R
i
.
Supply bypass capacitor which provides power supply filtering. Refer to the
Power Supply Bypassing
section for proper placement and selection of the supply bypass capacitor.
Bypass pin capacitor which provides half-supply filtering. Refer to the
Proper Selection of External
Components
section for proper placement and selection of the half-supply bypass capacitor.
2.
C
i
3.
4.
R
F
C
S
5.
C
B
DS012342-21
FIGURE 2. Automatic Switching Circuit
www.national.com
3
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| LM4862G-D08-T | 制造商:UTC-IC 制造商全稱:UTC-IC 功能描述:AUDIO POWER AMPLIFIER WITH SHUTDOWN MODE |
| LM4862G-S08-R | 制造商:UTC-IC 制造商全稱:UTC-IC 功能描述:AUDIO POWER AMPLIFIER WITH SHUTDOWN MODE |
| LM4862L-D08-T | 制造商:UTC-IC 制造商全稱:UTC-IC 功能描述:AUDIO POWER AMPLIFIER WITH SHUTDOWN MODE |
| LM4862L-S08-R | 制造商:UTC-IC 制造商全稱:UTC-IC 功能描述:AUDIO POWER AMPLIFIER WITH SHUTDOWN MODE |
| LM4862M | 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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