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.
기술 자료
| 상위 문서 | 유형 | 직함 | 형식 옵션 | 최신 영어 버전 다운로드 | 날짜 | |
|---|---|---|---|---|---|---|
| * | 데이터 시트 | Class-G DirectPath Stereo Headphone Amplifier With I2C Volume Control datasheet (Rev. A) | 2009. 10. 13 | |||
| 애플리케이션 노트 | Guidelines for Measuring Audio Power Amplifier Performance (Rev. A) | 2019. 8. 26 | ||||
| 애플리케이션 노트 | AN-1849 An Audio Amplifier Power Supply Design (Rev. C) | 2019. 6. 27 | ||||
| EVM User's guide | TPA6140A2EVM - User Guide | 2009. 3. 16 |
설계 및 개발
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TPA6140A2YFFEVM — TPA6140A2 EVM(평가 모듈)
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 — TPA6130A2용 리눅스 드라이버
The Linux driver supports the TPA61x0A2 family of Stereo Headphone Amplifiers. The Linux driver supports communication through the I2C bus and interfaces with the Linux DAPM (Dynamic Audio Power Management for Portable Devices) class.
Linux Mainline StatusAvailable in Linux Main line: Yes
Available (...)
| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| DSBGA (YFF) | 16 | Ultra Librarian |