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.
技術文件
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | TAS2553 2.8-W Class-D Mono Audio Amplifier with Class-G Boost and Speaker Sense datasheet (Rev. B) | PDF | HTML | 2014年 2月 26日 |
| Application note | Guidelines for Measuring Audio Power Amplifier Performance (Rev. A) | 2019年 8月 26日 | ||
| Application note | AN-1849 An Audio Amplifier Power Supply Design (Rev. C) | 2019年 6月 27日 | ||
| Application note | PLL and Clocking Configuration for Audio Devices | PDF | HTML | 2019年 3月 26日 | |
| Application note | AN-1737 Managing EMI in Class D Audio Applications (Rev. A) | 2013年 5月 1日 |
設計與開發
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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 (...)
PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具
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|---|---|---|
| DSBGA (YFF) | 30 | 檢視選項 |
訂購與品質
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 資格摘要
- 進行中可靠性監測
- 晶圓廠位置
- 組裝地點
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