TPA6140A2
- TI Class-G Technology Significantly Prolongs Battery Life and Music Playback Time
- 0.6 mA / Ch Quiescent Current
- 50% to 80% Lower Quiescent Current than Ground-Referenced Class-AB Headphone Amplifiers
- DirectPath™ Technology Eliminates Large Output DC-Blocking Capacitors
- Outputs Biased at 0 V
- Improves Low Frequency Audio Fidelity
- I2C Volume Control
- –59 dB to +4 dB Gain
- Active Click and Pop Suppression
- Fully Differential Inputs Reduce System Noise
- Also Configurable as Single-Ended Inputs
- SGND Pin Eliminates Ground Loop Noise
- Wide Power Supply Range: 2.5 V to 5.5 V
- 100 dB Power Supply Noise Rejection
- Short-Circuit Current Limiter
- Thermal-Overload Protection
- Software Compatible with TPA6130A2
- 0,4 mm Pitch, 1,6 mm × 1,6 mm WCSP Package
- APPLICATIONS
- Cellular Phones / Music Phones
- Portable Media / MP3 Players
- Portable CD / DVD Players
The TPA6140A2 (also known as TPA6140) is a Class-G DirectPath stereo headphone amplifier with built-in I2C volume control. Class-G technology maximizes battery life by adjusting the voltage supplies of the headphone amplifier based on the audio signal level. At low level audio signals, the internal supply voltage is reduced to minimize power dissipation. DirectPath™ technology eliminates external DC-blocking capacitors.
The device operates from a 2.5 V to 5.5 V supply voltage. Class-G operation keeps total supply current below 5.0 mA while delivering 500 µW per channel into 32 
. Shutdown mode reduces the supply current to less than 3 µA and is activated through the I2C interface.
The TPA6140A2 (TPA6140) I2C register map is compatible to the TPA6130A2, simplifying software development.
The amplifier outputs have short-circuit and thermal-overload protection along with ±8 kV HBM ESD protection, simplifying end equipment compliance to the IEC 61000-4-2 ESD standard.
The TPA6140A2 (TPA6140) is available in a 0,4 mm pitch, 16-bump 1,6 mm × 1,6 mm WCSP (YFF) package.
技术文档
| 顶层文档 | 类型 | 标题 | 格式选项 | 下载最新的英语版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 数据表 | Class-G DirectPath Stereo Headphone Amplifier With I2C Volume Control 数据表 (Rev. A) | 2009-10-13 | |||
| 应用手册 | Guidelines for Measuring Audio Power Amplifier Performance (Rev. A) | 2019-8-26 | ||||
| 应用手册 | AN-1849 An Audio Amplifier Power Supply Design (Rev. C) | 2019-6-27 | ||||
| EVM 用户指南 | TPA6140A2EVM - User Guide | 2009-3-16 |
设计与开发
如需其他信息或资源，请点击以下任一标题进入详情页面查看（如有）。
TPA6140A2YFFEVM — TPA6140A2 评估模块 (EVM)
The TPA6140A2YFFEVM allows the engineer to evaluate the TPA6140A2, a stereo Class-G DirectPath™ (capacitor-free) headphone amplifier in a WCSP package. The TPA6140A2 has extremely low power consumption that enables much longer battery life in portable applications.
TPA6130A2SW-LINUX — 适用于 TPA6130A2 的 Linux 驱动程序
Linux 驱动程序支持 TPA61x0A2 系列立体声耳机放大器。Linux 驱动程序支持通过 I2C 总线和接口与 Linux DAPM（便携式设备动态音频电源管理）系统进行通信。
Linux 主线状态在 Linux 主线中提供：是
可通过 git.ti.com 获取：不适用
- tpa6130a2
- tpa6140a2
与该器件关联的文件为：
- sound/soc/codecs/tpa6130a2.c
- Documentation/devicetree/bindings/sound/tpa6130a2.txt
- sound/soc/codecs/tpa6130a2.h
- (...)
| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| DSBGA (YFF) | 16 | Ultra Librarian |