TPA6132A2
- Patented DirectPath™ Technology Eliminates Need
for DC-Blocking Capacitors
- Outputs Biased at 0 V
- Excellent Low Frequency Fidelity
- Active Click and Pop Suppression
- 2.1 mA Typical Supply Current
- Fully Differential or Single-Ended Inputs
- Built-In Resistors Reduces Component Count
- Improves System Noise Performance
- Constant Maximum Output Power from 2.3 V to 5.5 V Supply
- Simplifies Design to Prevent Acoustic Shock
- Improved RF Noise Immunity
- MicrosoftTM Windows VistaTM Compliant
- High Power Supply Noise Rejection
- 100 dB PSRR at 217 Hz
- 90 dB PSRR at 10 kHz
- Wide Power Supply Range: 2.3 V to 5.5 V
- Gain Settings: –6 dB, 0 dB, 3 dB, and 6 dB
- Short-Circuit and Thermal-Overload Protection
- ±8 kV HBM ESD Protected Outputs
- Small Package Available
- 16-Pin, 3 mm × 3 mm Thin QFN
The TPA6132A2 (sometimes referred to as TPA6132) is a DirectPath™ stereo headphone amplifier that eliminates the need for external dc-blocking output capacitors. Differential stereo inputs and built-in resistors set the device gain, further reducing external component count. Gain is selectable at –6 dB, 0 dB, 3 dB or 6 dB. The amplifier drives 25 mW into 16 Ω speakers from a single 2.3 V supply. The TPA6132A2 (TPA6132) provides a constant maximum output power independent of the supply voltage, thus facilitating the design for prevention of acoustic shock.
The TPA6132A2 features fully differential inputs to reduce system noise pickup between the audio source and the headphone amplifier. The high power supply noise rejection performance and differential architecture provides increased RF noise immunity. For single-ended input signals, connect INL+ and INR+ to ground.
The device has built-in pop suppression circuitry to completely eliminate disturbing pop noise during turn-on and turn-off. 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 TPA6132A2 operates from a single 2.3 V to 5.5 V supply with 2.1 mA of typical supply current. Shutdown mode reduces supply current to less than 1 µA.
기술 자료
| 상위 문서 | 유형 | 직함 | 형식 옵션 | 최신 영어 버전 다운로드 | 날짜 |
|---|---|---|---|---|---|
| * | 데이터 시트 | TPA6132A2 25-mW DirectPath™ Stereo Headphone Amplifier With Pop Suppression datasheet (Rev. B) | PDF | HTML | 2017. 7. 14 | |
| 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 | |||
| 아날로그 디자인 학술지 | Precautions for connecting APA outputs to other devices | 2010. 5. 6 | |||
| 아날로그 디자인 학술지 | 2Q 2010 Issue Analog Applications Journal | 2010. 5. 6 | |||
| 애플리케이션 노트 | Ground Loop Break (GLB) Circuits | 2009. 10. 1 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
TPA6132A2EVM2 — TPA6132A2 EVM(평가 모듈)
The TPA6132A2EVM2 allows the engineer to evaluate the TPA6132A2, a stereo DirectPath™ (capacitor-free) headphone amplifier with 4 gain settings (-6dB, 0dB, +3dB and +6dB).
| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| WQFN (RTE) | 16 | Ultra Librarian |
주문 및 품질
권장 제품에는 본 TI 제품과 관련된 매개 변수, 평가 모듈 또는 레퍼런스 디자인이 있을 수 있습니다.