LM4915 具有固定 6dB 增益的 LM4915 伪差动单声道耳机放大器

The LM4915 is a pseudo-differential audio power amplifier primarily designed for demanding applications in mobile phones and other portable audio device applications with mono headphones. It is capable of delivering 90 miliwatts of continuous average power to a 32 BTL load with less than 1% distortion (THD+N) from a 3VDC power supply.

Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components. The LM4915 does not require output coupling capacitors or bootstrap capacitors, and therefore is ideally suited for mobile phone and other low voltage applications where minimal power consumption is a primary requirement.

The LM4915 features a low-power consumption shutdown mode

LM4915
Headphone Channels Mono    
Special Features Fixed Gain
Supply Max (Max) (Volt) 5.5    
Supply Min (Min) (Volt) 2.2    
THD (%) 0.1    
Output Power (W) 0.25    
Load (Min) (ohms) 16    
ISD (uA) 0.1    
PSRR (dB) 65
LM4915 特性
LM4915 器件用途
LM4915 应用技术支持与电子电路设计开发资源下载
  1. LM4915 数据资料 dataSheet 下载.PDF
  2. TI 德州仪器耳机放大器产品选型与价格 . xls