TAS5708
- Audio Input/Output
- 20-W Into an 8-Ω Load From an 18-V Supply
- Wide PVCC Range (10 V to 26 V); 3.3 V Digital Supply
- Supports One Serial Audio Input (8 kHz - 48 kHz Sample Rates) (LJ/RJ/I2S)
- Power-Stage Feedback Allows Operation From Poorly Regulated Power Supplies
- Audio/PWM Processing
- Factory-Trimmed Internal Oscillator for Automatic Rate Detection
- High-End 32-Bit Data Path Audio Processor
- 14 Biquads for Speaker EQ
- Dynamic Range Control (DRC)
- Benefits
- EQ: Speaker Equalization Improves Audio Performance
- DRC: Enables Speaker Protection and Night-Mode Listening.
- Autobank Switching: Preloaded Coefficients for Three Different Sample Rates Eliminates the Need to Update Coefficients When Sample Rate Changes
- Autodetect: Automatically Detects Sample-Rate Changes Eliminating the Need for External Microprocessor Intervention
- Closed-Loop Power Stage: Enables Wide PVCC Operating Range and Reduced Power Supply Ripple Distortion
The TAS5708 is a 20-W, efficient, digital audio power amplifier for driving stereo bridge-tied speakers. A 32-bit datapath eliminates the need for pre-scaling before processing and preserves signal integrity without sacrificing dynamic range. A digital audio processor with fully programmable digital filters allows designers to custom tune speakers for optimum sound in small enclosures. A programmable DRC can adjust power levels for a scaleable design while also enabling night-mode listening modes.
The closed-loop architecture allows the device to operate from poorly regulated supplies. Figure 1 below shows the benefit of the feedback architecture when a noisy supply (1kHz, 500mVpp ripple) modulates a 10kHz audio input. The figure shows a 40dB improvement in sideband suppression when compared to an open-loop design. This correlates directly to a 24dB improvement in distortion as seen in Figure 2.
기술 문서
| 유형 | 직함 | 날짜 | ||
|---|---|---|---|---|
| * | Data sheet | 20-W STEREO DIGITAL AUDIO POWER AMPLIFIER WITH EQ/DRC and FEEDBACK datasheet | 2008/12/04 | |
| Application note | Guidelines for Measuring Audio Power Amplifier Performance (Rev. A) | 2019/08/26 | ||
| Application note | AN-1849 An Audio Amplifier Power Supply Design (Rev. C) | 2019/06/27 | ||
| Application note | AN-1737 Managing EMI in Class D Audio Applications (Rev. A) | 2013/05/01 | ||
| EVM User's guide | TAS5708/10EVM - User Guide (Rev. A) | 2009/01/30 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
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 |
|---|---|---|
| HTQFP (PHP) | 48 | 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