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参数资料
| 型号： | LM4870MX |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 1.1 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO16 |
| 封装： | SOIC-16 |
| 文件页数： | 5/11页 |
| 文件大小： | 283K |
| 代理商： | LM4870MX |
External Components Description (Figure 1)
Components
Functional Description
1.
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 fC = 1/(2π Ri Ci).
2.
C
i
Input coupling capacitor which blocks DC voltage at the amplifier’s input terminals. Also creates a
highpass filter with R
i at fC = 1/(2π Ri Ci).
3.
R
f
Feedback resistance which sets closed-loop gain in conjunction 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 supply bypass capacitor.
5.
C
B
Bypass pin capacitor which provides half supply filtering. Refer to Application Information section for
proper placement and selection of bypass capacitor.
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
LM4870
www.national.com
3
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LM4871 | 制造商:NSC 制造商全称:National Semiconductor 功能描述:3W Audio Power Amplifier with Shutdown Mode |
| LM4871_03 | 制造商:NSC 制造商全称:National Semiconductor 功能描述:3W Audio Power Amplifier with Shutdown Mode |
| LM4871LD | 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 |
| LM4871LD/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 |
| LM4871LDX | 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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