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参数资料
| 型号： | LM4883SQ/NOPB |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 0.4 W, 2 CHANNEL, AUDIO AMPLIFIER, QCC24 |
| 封装： | LLP-24 |
| 文件页数： | 12/23页 |
| 文件大小： | 1244K |
| 代理商： | LM4883SQ/NOPB |
Typical Application
External Components Description
(Refer to Figure 1)
Components
Functional Description
1.
R1, 4, 5, 6
The inverting input resistance R1, along with R
3, set the closed-loop gain. R1, along with C1,
form a high pass filter with f
c = 1/(2
πR
1C1).
2.
C1, 2, 3, 4
The input coupling capacitor blocks DC voltage at the amplifier’s input terminals. C
1, along with
R
1, create a highpass filter with fc = 1/(2
πR
1C1). Refer to the section, SELECTING PROPER
EXTERNAL COMPONENTS, for an explanation of determining the value of C
1.
3.
R2, 3, 7, 8
The feedback resistance, along with R
1 sets the closed-loop gain.
4.
C6
The supply bypass capacitor. Refer to the POWER SUPPLY BYPASSING section for
information about properly placing, and selecting the value of, this capacitor.
5.
C5
The capacitor, C
5, filters the half-supply voltage present on the BYPASS pin. Refer to the
SELECTING PROPER EXTERNAL COMPONENTS section for information concerning proper
placement and selecting C
5’s value.
200887A1
FIGURE 1. Typical Audio Amplifier Application Circuit
LM4883
www.national.com
2
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相关代理商/技术参数 |
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|---|---|
| LM4883SQX/NOPB | 功能描述:IC AMP AUDIO PWR 3W STER 24LLP 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) |
| LM4884 | 制造商:NSC 制造商全称:National Semiconductor 功能描述:2.1W Differential Input, BTL Output Stereo Audio Amplifier with RF Suppression and Shutdown |
| LM4884A E WAF | 制造商:Texas Instruments 功能描述: |
| LM4884MH | 制造商:NSC 制造商全称:National Semiconductor 功能描述:2.1W Differential Input, BTL Output Stereo Audio Amplifier with RF Suppression and Shutdown |
| LM4884MH/NOPB | 功能描述:IC AMP AUDIO 2.6W STER 20TSSOP 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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