Differential Input DirectDrive Line Drivers/Headphone Amplifiers

General Description The MAX97220_ is a differential input DirectDrive® line driver/headphone amplifier. This device is capable of driving line level loads with 3VRMS into 1kI with a 5V supply and 2VRMS into 600I loads from a 3.3V supply. A headphone load is capable of being driven with 125mW in

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Maxim

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Differential Input DirectDrive Line Drivers/Headphone Amplifiers

General Description The MAX97220_ is a differential input DirectDrive® line driver/headphone amplifier. This device is capable of driving line level loads with 3VRMS into 1kI with a 5V supply and 2VRMS into 600I loads from a 3.3V supply. A headphone load is capable of being driven with 125mW in

文件：3.41481 Mbytes 页数：19 Pages

Maxim

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Differential Input DirectDrive Line Drivers/Headphone Amplifiers

文件：3.42427 Mbytes 页数：19 Pages

Maxim

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差分输入DirectDrive线驱动器/耳机放大器

MAX97220为差分输入DirectDrive®线驱动器/耳机放大器。5V供电时，器件为1kΩ负载提供3VRMS输出驱动；3.3V供电时，为600Ω负载提供2VRMS输出驱动。5V供电时，器件为32Ω耳机负载提供125mW驱动。IC具有6dB内部固定增益，也可以利用外部电阻设置增益。外部增益设置节点还可以配置成滤波器，以支持机顶盒应用。IC在整个音频频带内提供优异的THD+N。\n\n IC具有两个不同导通时间(tON)版本，A版、C版和E版的导通时间tON为5.5ms，用于耳机驱动；B版和D版则具有130ms的tON，用于机顶盒设计。内部电荷泵对输入电源反相，产生负电源电压。放大 • 5V供电时，为32Ω负载提供125mW输出功率\n• 3.3V供电时，为600Ω负载提供2VRMS输出驱动\n• 固定增益或外部可调增益，无咔嗒/噼噗声\n• DirectDrive输出无需隔直流电容\n• 18位，SNR可达112dB \n• 引脚兼容于MAX9722;

ADI

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