TAS2553
- Analog or Digital Input Mono Boosted Class-D Amplifier
- 2.8 W into 8 Ω Load from 3.6 V Supply (1% THD+N)
- Efficiency of 86% at Rated Power
- I2S, Left-Justified, Right-Justified, DSP, PDM, and TDM
Input and Output Interface - Input Sample Rates from 8 kHz to 192 kHz
- High Efficiency Class-G Boost Converter
- Automatically Adjusts Class-D Supply
- Built-In Speaker Sense
- Measures Speaker Current and Voltage
- Measures VBAT and VBOOST Voltages
- Built-In Automatic Gain Control (AGC)
- Limits Battery Current Consumption
- Adjustable Class-D Switching Edge-Rate Control
- Power Supplies
- Boost Input: 3.0 V to 5.5 V
- Analog: 1.65 V to 1.95 V
- Digital I/O: 1.5 V to 3.6 V
- Thermal and Short-Circuit Protection
- I2C Interface for Register Control
- Stereo Configuration Using Two TAS2553s
- I2C Address Select Terminal (ADDR)
- 2.855 mm × 2.575 mm, 0.4 mm Pitch 30-Ball WCSP
The TAS2553 is a high efficiency Class-D audio power amplifier with advanced battery current management and an integrated Class-G boost converter. The device constantly measures the current and voltage across the load and provides a digital stream of this information.
The Class-G boost converter generates the Class-D amplifier supply rail. During low Class-D output power, the boost improves efficiency by deactivating and connecting VBAT directly to the Class-D amplifier supply. When high power audio is required, the boost quickly activates to provide significantly louder audio than a stand-alone amplifier connected directly to the battery.
The AGC automatically adjusts Class-D gain to reduce battery current at end-of-charge voltages, preventing output clipping, distortion and early system shutdown. The fixed gain is adjustable via I2C. The gain range is –7 dB to +24 dB in 1 dB steps.
In addition to a differential mono analog input, the TAS2553 has built-in a 16-bit D/A converter used with a digital input. Moving the D/A converter from the digital host processor into the integrated amplifier process provides better dynamic performance at lower system cost. Additionally, since the PCB routing is digital rather than analog, sensitivity to external perturbations such as GSM frame-rate noise is decreased at the system level.
기술 자료
| 상위 문서 | 유형 | 직함 | 형식 옵션 | 최신 영어 버전 다운로드 | 날짜 |
|---|---|---|---|---|---|
| * | 데이터 시트 | TAS2553 2.8-W Class-D Mono Audio Amplifier with Class-G Boost and Speaker Sense datasheet (Rev. B) | PDF | HTML | 2014. 2. 26 | |
| 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 | |||
| 애플리케이션 노트 | PLL and Clocking Configuration for Audio Devices | 2019. 3. 26 | |||
| 애플리케이션 노트 | AN-1737 Managing EMI in Class D Audio Applications (Rev. A) | 2013. 5. 1 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
TAS2552EVM — TAS2552 4W 클래스 D 오디오 전원 증폭기 평가 모듈
The TAS2552EVM is a USB audio amplifier with an IV feedback, Boosted Class-D mono amplifier. Together with the TAS2552 control software and a customer supplied speaker and power supply, it allows easy evaluation of the TAS2552 audio amplifier. The TAS2552 control software is compatible with Windows (...)
| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| DSBGA (YFF) | 30 | Ultra Librarian |
주문 및 품질
권장 제품에는 본 TI 제품과 관련된 매개 변수, 평가 모듈 또는 레퍼런스 디자인이 있을 수 있습니다.