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参数资料
| 型号： | LM4901MM/NOPB |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 1.6 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO10 |
| 封装： | MSOP-10 |
| 文件页数： | 6/21页 |
| 文件大小： | 1281K |
| 代理商： | LM4901MM/NOPB |
Application Information (Continued)
The LM4901 is unity-gain stable and requires no external
components besides gain-setting resistors, an input coupling
capacitor, and proper supply bypassing in the typical appli-
cation. However, if a closed-loop differential gain of greater
than 10 is required, a feedback capacitor (C4) may be
needed as shown in Figure 2 to bandwidth limit the amplifier.
This feedback capacitor creates a low pass filter that elimi-
nates possible high frequency oscillations. Care should be
taken when calculating the -3dB frequency in that an incor-
rect combination of R
3
and C
4
will cause rolloff before
20kHz. A typical combination of feedback resistor and ca-
pacitor that will not produce audio band high frequency rolloff
is R
3 = 20k
and C
4 = 25pf. These components result in a
-3dB point of approximately 320 kHz.
20019824
FIGURE 2. HIGHER GAIN AUDIO AMPLIFIER
LM4901
www.national.com
14
相关PDF资料 |
PDF描述 |
|---|---|
| LM4901LD/NOPB | 1.6 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO10 |
| LM4902LDX/NOPB | 0.675 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO8 |
| LM4902LD/NOPB | 0.675 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO8 |
| LM4902MMX/NOPB | 0.675 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO8 |
| LM4903MM/NOPB | 1.07 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO8 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LM4901MMX | 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 |
| LM4901MMX/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 |
| LM4902 | 制造商:NSC 制造商全称:National Semiconductor 功能描述:265mW at 3.3V Supply Audio Power Amplifier with Shutdown Mode |
| LM4902LD | 制造商:NSC 制造商全称:National Semiconductor 功能描述:265mW at 3.3V Supply Audio Power Amplifier with Shutdown Mode |
| LM4902LD/NOPB | 功能描述:IC AMP AUDIO PWR .675W MONO 8LLP RoHS:是 类别:集成电路 (IC) >> 线性 - 音頻放大器 系列:Boomer® 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:DirectDrive® 类型:H 类 输出类型:耳机，2-通道（立体声） 在某负载时最大输出功率 x 通道数量:35mW x 2 @ 16 欧姆 电源电压:1.62 V ~ 1.98 V 特点:I²C，麦克风，静音，短路保护，音量控制 安装类型:表面贴装 供应商设备封装:25-WLP（2.09x2.09） 封装/外壳:25-WFBGA，WLCSP 包装:带卷 (TR) |
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