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参数

Output power (W) 1.5 Analog supply (Min) (V) 10 Analog supply (Max) (V) 30 PSRR (dB) 75 Rating Catalog Operating temperature range (C) -40 to 85 Headphone channels Stereo Volume control No Shutdown current (ISD) (uA) 0.7 Architecture Class-AB Iq per channel (Typ) (mA) 11.5 open-in-new 查找其它 耳机放大器

封装|引脚|尺寸

HSOIC (DWP) 20 133 mm² 12.825 x 10.405000000000001 VQFN (RGY) 14 12 mm² 3.5 x 3.5 open-in-new 查找其它 耳机放大器

特性

  • SNR of 128dB A-Weighted.
  • THD of 112.5dB
  • Current-Feedback Architecture
  • Output Voltage Noise of 0.9µVrms at
    Gain = 1V/V (16Ω Load)
  • Power Supply Range: ±5V to ±15V
  • 1300V/µs Slew Rate
  • Can be configured for Single Ended or Differential
    Inputs
  • Independent Power Supplies for Low Crosstalk
open-in-new 查找其它 耳机放大器

描述

In applications requiring a high-power output, very high fidelity headphone amplifier, the TPA6120A2 replaces a costly discrete design and allows music, not the amplifier, to be heard. The TPA6120A2’s current-feedback AB amplifier architecture delivers high bandwidth, extremely low noise, and up to 128dB of dynamic range.

Three key features make current-feedback amplifiers outstanding for audio. The first feature is the high slew rate that prevents odd order distortion anomalies. The second feature is current-on-demand at the output that enables the amplifier to respond quickly and linearly when necessary without risk of output distortion. When large amounts of output power are suddenly needed, the amplifier can respond extremely quickly without raising the noise floor of the system and degrading the signal-to-noise ratio. The third feature is the gain-independent frequency response that allows the full bandwidth of the amplifier to be used over a wide range of gain settings.

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技术文档

= 特色
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类型 标题 下载最新的英文版本 发布
* 数据表 TPA6120A2 High Fidelity Headphone Amplifier 数据表 2015年 2月 4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
用户指南 TPA6120A2RGYEVM User's Guide 2014年 7月 17日
用户指南 TPA6120A2 EVM 2004年 5月 6日

设计与开发

有关其他条款或所需资源,请点击下面的任何链接来查看详情页面。

硬件开发

评估板 下载
document-generic 用户指南
$99.00
说明

The TPA6120A2 is a Hi-Fi stereo headphone amplifier capable of delivering 1.5 W of continuous RMS power per channel into 32-Ohm speakers with less than 0.0003% THD+N.

特性
  • Current-Feedback Architecture
  • Signal-to-Noise Ratio (SNR) > 120dB
  • Intermodulation Distortion = 0.00014%
  • Differential Inputs
评估板 下载
TPA6120A2RGY 评估模块
TPA6120A2RGYEVM
document-generic 用户指南
$99.00
说明

The TPA6120A2 is an exceptionally high-performance Hi-Fi stereo headphone amplifier capable of delivering 1.5 W of continuous RMS power per channel into 32-Ohm speakers in a tiny QFP package.

特性
  • Compact EVM layout emphasizes the tiny solution size
  • Versatile EVM design allows for Single Ended or Differential inputs
  • Industry leading Signal-to-Noise Ratio (SNR) = 128dB
  • Best in class Voltage Noise of 0.9 uVrms with a stereo 16 Ohm Load

设计工具和仿真

GERBER 文件 下载
SLOC308.ZIP (1389 KB)

参考设计

参考设计 下载
用于便携和智能手机应用的高保真音频耳机回放
TIDA-00385 随着用于便携音频播放的高保真耳机的兴起,人们开始对更高性能的 DAC 和耳机放大器有了要求。此系统可通过 PCM5242 音频 DAC 将来自 USB、SPDIF 或光盘的数字音频转换成模拟音频。高性能 TPA6120A2 耳机放大器搭配差动 DAC 可实现令人震撼的清晰度和解析力,同时还能提供行业领先的降噪性能,这是实现低噪耳机播放的关键所在。电源架构专为通过 3.3V 电源工作而设计,可提高灵活度并与现有产品和系统相集成。
document-generic 原理图 document-generic 用户指南

CAD/CAE 符号

封装 引脚 下载
SO PowerPAD (DWP) 20 视图选项
VQFN (RGY) 14 视图选项

订购与质量

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