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参数

Audio input type Analog Input Architecture Class-AB Speaker channels (Max) Stereo Power stage supply (Max) (V) 24 Power stage supply (Min) (V) 6 Load (Min) (ohms) 4 Output power (W) 11 THD + N @ 1 kHz (%) 0.055 Iq (Typ) (mA) 12.5 Control interface Hardware Closed/open loop Open Analog supply (Min) (V) 6 Analog supply (Max) (V) 24 PSRR (dB) 65 Operating temperature range (C) 0 to 70 open-in-new 查找其它 扬声器放大器

封装|引脚|尺寸

SOIC (NPA) 14 93 mm² 8.9915 x 10.325 open-in-new 查找其它 扬声器放大器

特性

  • 2W/Channel
  • −65 dB Ripple Rejection, Output Referred
  • −65 dB Channel Separation, Output Referred
  • Wide Supply Range, 6V–24V
  • Very Low Cross-Over Distortion
  • Low Audio Band Noise
  • AC Short Circuit Protected
  • Internal Thermal Shutdown

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描述

The LM1877 is a monolithic dual power amplifier designed to deliver 2W/channel continuous into 8Ω loads. The LM1877 is designed to operate with a low number of external components, and still provide flexibility for use in stereo phonographs, tape recorders and AM-FM stereo receivers. Each power amplifier is biased from a common internal regulator to provide high power supply rejection, and output Q point centering. The LM1877 is internally compensated for all gains greater than 10.

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技术文档

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类型 标题 下载最新的英文版本 发布
* 数据表 LM1877 Dual Audio Power Amplifier 数据表 2013年 4月 3日
应用手册 Guidelines for Measuring Audio Power Amplifier Performance 2019年 8月 26日
应用手册 AN-1849 An Audio Amplifier Power Supply Design 2019年 6月 27日

设计与开发

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硬件开发

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document-generic 用户指南
说明

The Universal OPAMPEVM is a series of general purpose blank circuit boards that simplify prototyping circuits for a variety of IC package types. The evaluation module board design allows many different circuits to be constructed easily and quickly. Five models are offered with each targeted for (...)

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用于数字双二阶滤波器的系数计算器
COEFFICIENT-CALC COEFFICIENT-CALC (TIBQ) 可以计算 TI 音频编解码器中实施的数字滤波器双二阶传输函数的系数。通过选择滤波器类型并在显示传输函数增益和相位图的窗口中移动控制点,可以对数字滤波器的特性进行调节。

CAD/CAE 符号

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SOIC (NPA) 14 了解详情

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