TAS2781
- Integrated DSP for audio processing
- 24-V Supply for class-d output stage
- Y-Bridge multi-level supply architecture
- Hybrid-pro external boost control algorithm
- Ultrasonic output support up to 40 kHz
- 25 W, 1% THD+N (4 Ω, 18 V)
- 30 W Maximum output power, 10% THD+N
- 82% at 1W, 4 Ω, PVDDH = 12 V, PVDDL = 3.8 V
- 83% at 1W, 8 Ω, PVDDH = 18 V, PVDDL = 5 V
- 84% at 1W, 4 Ω, PVDDH = 18 V, PVDDL = 5 V
- 90% at 15W, 4 Ω, PVDDH = 18 V, PVDDL = 5 V
- 93% at 15W , 8 Ω, PVDDH = 18 V, PVDDL = 5 V
- <0.5 µA in Hardware Shutdown Mode
- AVDD: 1.8 V
- IOVDD: 1.8 V/ 3.3 V
- PVDDL: 2.7 V to 5.5 V
- PVDDH: 3 V to 24 V
- SDOUT for echo cancellation
- I 2S/TDM: 8 channels of 32 bits up to 192 KSPS
- I 2C with fast mode+ or SPI
- Inter-chip communication bus
- 16 kHz to 192 kHz sample rates
- Real-time IV-sense for speaker protection
- Dynamic range compressor
- Brownout protection with power limiter
- Multi-channel balancing communication
- Over power and low battery protection
- PVDDH/ PVDDL supply tracking limiters
- Thermal and over current protections
- Thermal foldback
- Post filter feedback and slew rate control
The TAS2781 is a mono, digital input Class-D audio amplifier optimized for efficiently driving high peak power into loudspeakers. The Class-D amplifier is capable of delivering 25 W of continuous power into a 4 Ω load with less than 1% THD+N at a supply voltage of 18 V. The broad voltage input range and the high output power makes this amplifier versatile enough to work with battery or line powered systems.
An on-chip DSP supports Texas Instruments Smart Amp speaker protection algorithm. The integrated speaker voltage and current sense provides for real-time monitoring of loudspeakers.
Y-Bridge power architecture improves amplifier efficiency by internally selecting the supplies for optimal headroom. Brownout prevention scheme with adjustable threshold allows reducing the gain in signal path when the supply drops.
The Hybrid-Pro algorithm allows user to optimize efficiency and improve battery life by controlling the external power supply.
Up to eight TAS2781 devices can share a common bus via I 2S/TDM and I 2C/SPI interfaces.
The TAS2781 is available in a 30 pin HR-QFN package for a compact PCB footprint.
추가 정보 요청
TAS2781 PurePath™ Console 소프트웨어 및 기타 설계 리소스를 요청하세요: 지금 요청하기
기술 문서
유형 | 직함 | 날짜 | ||
---|---|---|---|---|
* | Data sheet | TAS2781 24-V Class-D Amplifier with Real Time Integrated Speaker Protection and Audio Processing datasheet (Rev. B) | PDF | HTML | 2023/01/26 |
Application note | TAS2781, TAS2783 Audio Enhancement (Rev. A) | PDF | HTML | 2024/04/30 | |
Application note | TAS27xx Introduction to Click and Pop Noise Measurement in Class-D Audio Amplifiers | PDF | HTML | 2024/03/26 | |
Application note | TAS2781 and TAS2783 Hybrid-Pro Boost Controller | PDF | HTML | 2022/10/08 | |
User guide | TAS2781EVM User's Guide | PDF | HTML | 2022/06/28 | |
Application note | Y-Bridge in Class-D Amplifiers for Improving Efficiency | PDF | HTML | 2021/11/19 | |
Application note | Limitations of Capacitor only EMI Filters on Class-D Amplifiers | PDF | HTML | 2020/07/21 | |
Application note | Requesting Access to Audio Software | 2020/06/18 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
TAS2781EVM — TAS2781 디지털 입력 및 스피커 IV 센서가 탑재된 모노 클래스 D 오디오 증폭기용 평가 모듈
PUREPATHCONSOLE — 오디오 시스템 설계 및 개발을 위한 PurePath™ 콘솔 그래픽 개발 제품군
PurePath Console’s (...)
PSPICE-FOR-TI — TI 설계 및 시뮬레이션 툴용 PSpice®
TI 설계 및 시뮬레이션 환경용 PSpice는 기본 제공 라이브러리를 이용해 복잡한 혼합 신호 설계를 시뮬레이션할 수 있습니다. 레이아웃 및 제작에 (...)
패키지 | 핀 | 다운로드 |
---|---|---|
VQFN-HR (RYY) | 30 | 옵션 보기 |
주문 및 품질
- RoHS
- REACH
- 디바이스 마킹
- 납 마감/볼 재질
- MSL 등급/피크 리플로우
- MTBF/FIT 예측
- 물질 성분
- 인증 요약
- 지속적인 신뢰성 모니터링
- 팹 위치
- 조립 위치
권장 제품에는 본 TI 제품과 관련된 매개 변수, 평가 모듈 또는 레퍼런스 디자인이 있을 수 있습니다.