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NS4268 반도체 회로 부품 판매점

3W dual-channel Class D audio amplifier + stereo headset capabilities



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NS4268 데이터시트, 핀배열, 회로
NS4268
DC音量控制、超低EMI、无需滤波器、3W双声道D类音频功放+立体声耳机功能
目录
1 功能说明 ........................................................................................................................................................... 4
2 主要特性 ........................................................................................................................................................... 4
3 应用领域 ........................................................................................................................................................... 4
4 典型应用电路.................................................................................................................................................... 4
5 极限参数 ........................................................................................................................................................... 5
6 电气特性 ........................................................................................................................................................... 5
7 芯片管脚描述.................................................................................................................................................... 7
7.1 管脚分配图 ....................................................................................................................................... 7
7.2 引脚功能描述 ................................................................................................................................... 7
8 NS4268 典型参考特性...................................................................................................................................... 8
9 NS4268 应用说明............................................................................................................................................ 12
9.1 芯片基本结构描述 ......................................................................................................................... 12
9.2 NS4268 工作模式 ........................................................................................................................... 12
9.3 音量控制功能 ................................................................................................................................. 13
9.4 上电 ,掉电噪声抑制 ....................................................................................................................... 15
9.5 EMI增强技术 .................................................................................................................................. 15
9.6 效率 ................................................................................................................................................. 15
9.7 保护电路 ......................................................................................................................................... 15
10 NS4268 应用注意事项 ................................................................................................................................... 16
11 封装尺寸 ......................................................................................................................................................... 17
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NS4268 데이터시트, 핀배열, 회로
NS4268
DC音量控制、超低EMI、无需滤波器、3W双声道D类音频功放+立体声耳机功能
图目录
1 NS4268 典型应用电路 .............................................................................................................................................. 4
2 管脚分配图(TOP VIEW) .............................................................................................................................................. 7
3 NS4268 原理框图 .................................................................................................................................................... 12
4 立体耳机工作电路示意图 ...................................................................................................................................... 13
5 NS4268 音量控制 .................................................................................................................................................... 14
6 EMI测试频谱图....................................................................................................................................................... 15
7 NS4268 加磁珠应用电路 ........................................................................................................................................ 16
8 SOP16 封装尺寸图.................................................................................................................................................. 17
表目录
1 芯片最大物理极限值 ................................................................................................................................................ 5
2 NS4268 电气特性 ...................................................................................................................................................... 5
3 NS4268 管脚描述 ...................................................................................................................................................... 7
4 NS4268 工作模式设置 ............................................................................................................................................ 12
5 音量控制表(VDD=5.0V)......................................................................................................................................... 14
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NS4268 amplifier

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