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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： | 17/21页 |
| 文件大小： | 1281K |
| 代理商： | LM4901MM/NOPB |
Electrical Characteristics V
The following specifications apply for the circuit shown in Figure 1, unless otherwise specified. Limits apply for T
A =
25C. (Continued)
Note 12: The Exposed-DAP of the LDA10B package should be electrically connected to GND or an electrically isolated copper area. the LM4901LD demo board
(views featured in the Application Information section) has the Exposed-DAP connected to GND with a PCB area of 86.7mils x 585mils (2.02mm x 14.86mm) on
the copper top layer and 550mils x 710mils (13.97mm x 18.03mm) on the copper bottom layer.
Note 13: The thermal performance of the LLP package (LM4901LD) when used with the exposed-DAP connected to a thermal plane is sufficient for driving 4
loads. The LM4901LD demo board (views featured in the Application Information section) can drive 4
loads at the maximum power dissipation point (1.267W)
without thermal shutdown circuitry being activated. The other available packages do not have the thermal performance necessary for driving 4
loads with a 5V
supply and are not recommended for this application.
External Components Description
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/(2
π R
iCi).
2.
C
i
Input coupling capacitor which blocks the DC voltage at the amplifiers input terminals. Also creates a
highpass filter with R
i at fc = 1/(2
π R
iCi). Refer to the section, Proper Selection of External Components,
for an explanation of how to determine the value of C
i.
3.
R
f
Feedback resistance which sets the closed-loop gain in conjunction with R
i.
4.
C
S
Supply bypass capacitor which provides power supply filtering. Refer to the Power Supply Bypassing
section for information concerning 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.
LM4901
www.national.com
5
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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