TPA6166A2
- Ultra Low-Power, High-Performance DirectPath™ Class-G
Headphone Amplifier- Ground-Centered Output Eliminates DC-Blocking
Capacitors - 30 mW/Ch into 32 Ω / Ch at 1% THD+N
- –42 dB to +6 dB Volume Control
- 2.0 µV Output Noise at –42 dB Gain
- 91-dB PSRR
- Ground Loop Rejection for Reducing Crosstalk
- Ground-Centered Output Eliminates DC-Blocking
- Fully Differential Mic Preamplifier With Variable Gain
and 3.4-µV Low Noise- Integrated AC-Coupling Capacitor
- Ground Loop Rejection for Reducing Headphone to
Mic Crosstalk
- Choice of Two Mic Bias Voltages: 2.0 V and 2.6 V
- 92-dB PSRR
- Integrated Programmable Mic Bias Resistor
- Advanced Accessory Insertion, Removal, and Type Detection
- Passive Multi-button Support Using 10-Bit SAR ADC
- Implements Proprietary Scheme to Reduce Error Caused
by Audio Playback Signal in Presence of Finite Resistance
on Headset Ground Return Path
- Implements Proprietary Scheme to Reduce Error Caused
- Integrated Level-4 IEC ESD Protection on Jack Connected
Pins (on EVM) - Ultra Low-Power Chip Shutdown Mode
- I2C Interface
- Short-Circuit Protection
- 0.4-mm Pitch 25-Ball WCSP
The TPA6166A2 single-chip headset interface IC simplifies the challenges of detecting what kind of device an end user has plugged into the headphone jack while delivering excellent audio quality. The device enables smaller end products by integrating a high-performance, low-power DirectPath variable-attenuation class-G stereo headphone amplifier, variable-gain microphone preamplifier with bias with advanced accessory detection circuitry, all in a tiny 5-mm × 5-mm terminal, 0.4-mm pitch WCSP package.
The class-G headphone amplifier maximizes battery life by adjusting the supply voltage of the headphone amplifier based on audio signal level. With 8-µV output noise at 0-dB gain and PSRR of 91 dB, the headphone amplifier provides excellent audio performance. DirectPath eliminates the need for DC-blocking capacitors. The microphone preamplifier has two programmable gains of 12 dB and 24 dB, and 3.4 µV input referred noise.
The microphone bias voltage has two programmable settings of 2 V and 2.6 V. The bias output drives up to 1.2 mA of current, has a low output noise of 2 µV, and 92-dB PSRR, providing excellent rejection of power supply noise in wireless handsets.
The advanced accessory detection algorithm automatically detects six supported accessories and enables or disables internal components.
추가 정보 요청
PurePath™ Console 2, TPA6166A2 GUI 및 기타 설계 리소스를 사용할 수 있습니다. 지금 요청
기술 자료
| 상위 문서 | 유형 | 직함 | 형식 옵션 | 최신 영어 버전 다운로드 | 날짜 |
|---|---|---|---|---|---|
| * | 데이터 시트 | TPA6166A2 3.5-mm Jack Detect and Headset Interface IC datasheet (Rev. B) | PDF | HTML | 2015. 1. 23 | |
| 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 | |||
| 사용 설명서 | TPA6166A2 Audio Amplifier with Jack Detection | 2014. 3. 12 | |||
| 애플리케이션 노트 | Reducing Crosstalk in Directpath Headphone Amplifiers | 2012. 3. 28 | |||
| 애플리케이션 노트 | Ground Loop Break (GLB) Circuits | 2009. 10. 1 | |||
| 애플리케이션 노트 | PowerWiseë Class G versus Class AB Headphone Amplifiers | 2009. 6. 11 | |||
| 애플리케이션 노트 | A Low-Cost, Single Coupling Capacitor Config. for Stereo Headphone Amplifiers | 1999. 12. 22 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
PUREPATHCONSOLE — PurePath™ Console graphical development suite for audio system design and development
PurePath™ Console is a highly integrated and easy-to-use audio development suite designed specifically to simplify the evaluation, configuration and debug process associated with the development of audio products. Watch how easy it is to use the PurePath™ Console 3 software.
PurePath Console’s (...)
| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| DSBGA (YFF) | 25 | Ultra Librarian |
주문 및 품질
권장 제품에는 본 TI 제품과 관련된 매개 변수, 평가 모듈 또는 레퍼런스 디자인이 있을 수 있습니다.