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Nsiway

NS4249 Datasheet Preview

NS4249 Datasheet

3W dual channel audio amplifier

No Preview Available !

NS4249
AB类/D类切换、超低EMI、无需滤波器、3W双声道音频功放+立体声耳机功能
NS4249 用户手册 V1.1
深圳市纳芯威科技有限公司
2011 05
Nsiway
1




Nsiway

NS4249 Datasheet Preview

NS4249 Datasheet

3W dual channel audio amplifier

No Preview Available !

NS4249
AB类/D类切换、超低EMI、无需滤波器、3W双声道音频功放+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.................................................................................................................................................... 6
7.1
封装管脚分配图 ............................................................................................................................... 6
7.2
引脚功能描述 ................................................................................................................................... 7
8 NS4249 典型参考特性...................................................................................................................................... 7
9 NS4249 应用说明............................................................................................................................................ 11
9.1
芯片基本结构描述 ......................................................................................................................... 11
9.2
NS4249 工作模式 ........................................................................................................................... 12
9.3
上电 ,掉电噪声抑制 ....................................................................................................................... 13
9.4
EMI增强技术 .................................................................................................................................. 13
9.5
效率 ................................................................................................................................................. 14
9.6
保护电路 ......................................................................................................................................... 14
10 NS4249 应用注意事项 ................................................................................................................................... 14
11 芯片的封装尺寸图 .......................................................................................................................................... 15
Nsiway
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Part Number NS4249
Description 3W dual channel audio amplifier
Maker Nsiway
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NS4249 Datasheet PDF






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