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参数资料
| 型号： | LM4881MDA |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 0.3 W, 2 CHANNEL, AUDIO AMPLIFIER, UUC |
| 封装： | DIE |
| 文件页数： | 9/14页 |
| 文件大小： | 473K |
| 代理商： | LM4881MDA |
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 fc =1/(2πR iCi).
2. 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 fc =1/(2πRiC i). Refer to the section, Proper Selection of External
Components, for and explanation of how to determine the value of C
i.
3. R
f
Feedback resistance which sets closed-loop gain in conjuction with R
i.
4. C
S
Supply bypass capacitor which provides power supply filtering. Refer to the Application Information
section for proper placement and selection of the supply bypass capacitor.
5. C
B
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.
6. C
O
Output coupling capacitor which blocks the DC voltage at the amplifier’s output. Forms a high pass
filter with R
L at fO = 1/(2πRLCO)
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
LM4881
www.national.com
4
相关PDF资料 |
PDF描述 |
|---|---|
| LM4881N/NOPB | 0.3 W, 2 CHANNEL, AUDIO AMPLIFIER, PDIP8 |
| LM4882MMX/NOPB | 0.48 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO8 |
| LM4882MX/NOPB | 0.48 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO8 |
| LM4883SQ/NOPB | 0.4 W, 2 CHANNEL, AUDIO AMPLIFIER, QCC24 |
| LM4884MH/NOPB | 2.6 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO20 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LM4881MM | 功能描述:音频放大器 RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
| LM4881MM/NOPB | 功能描述:音频放大器 RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
| LM4881MM/SL110729 | 制造商:Texas Instruments 功能描述: |
| LM4881MMX | 功能描述:音频放大器 RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
| LM4881MMX/NOPB | 功能描述:音频放大器 RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
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