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TAS2557

現行

具有整合式喇叭防護、先進 EQ 和 8.5-V H 類升壓的 5.7-W、數位輸入智慧型放大器

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產品規格表

現在提供此產品的更新版本

open-in-new 比較替代產品
功能相同，但引腳輸出與所比較的產品不同
TAS2563 現行 具有整合式喇叭防護、先進 EQ 和 11V H 類升壓的 6.1W 數位輸入智慧型放大器 Higher output power to 6.1W and upto 11V boost
最新 TAS2572 現行 具有 I/V 感測和整合式 13V H 類升壓功能的 6.6W 數位輸入智慧放大器 Higher output power and improved distortion and noise

TAS2557

現行
產品規格表 立即訂購

產品詳細資料

Audio input type Digital Input Architecture Class-D Boosted, Smart Amp Speaker channels (max) Mono Rating Catalog Power stage supply (max) (V) 8.5 Power stage supply (min) (V) 2.7 Load (min) (Ω) 4 Output power (W) 5.7 SNR (dB) 111 THD + N at 1 kHz (%) 0.0035 Iq (typ) (mA) 3.9 Control interface I2C, SPI Closed/open loop Closed Analog supply (min) (V) 2.9 Analog supply voltage (max) (V) 5.5 Sampling rate (max) (kHz) 96 PSRR (dB) 110 Operating temperature range (°C) -40 to 85
Audio input type Digital Input Architecture Class-D Boosted, Smart Amp Speaker channels (max) Mono Rating Catalog Power stage supply (max) (V) 8.5 Power stage supply (min) (V) 2.7 Load (min) (Ω) 4 Output power (W) 5.7 SNR (dB) 111 THD + N at 1 kHz (%) 0.0035 Iq (typ) (mA) 3.9 Control interface I2C, SPI Closed/open loop Closed Analog supply (min) (V) 2.9 Analog supply voltage (max) (V) 5.5 Sampling rate (max) (kHz) 96 PSRR (dB) 110 Operating temperature range (°C) -40 to 85
DSBGA (YZ) 42 See data sheet
  • Ultra low-noise mono boosted class-D amplifier
    • 5.7 W at 1% THD+N and 6.9 W at 10% THD+N into 4-Ω load from 4.2-V supply
    • 3.8 W at 1% THD+N and 4.5 W at 10% THD+N into 8-Ω load from 4.2-V supply
  • Output noise for DAC + class-D (ICN) is 15.9 µV
  • DAC + class-D SNR 111 dB at 1%THD+N/8 Ω
  • THD+N –90 dB at 1 W / 8 Ω with flat frequency response
  • Post-filter feedback (PFFB)
  • PSRR 110 dB for 200 mVpp ripple at 217 Hz
  • Input sample rates from 8 kHz to 96 kHz
  • Built-in speaker sense
    • Measures speaker current and voltage
    • Measures VBAT voltage, chip temperature
  • Dedicated real-time dual-core DSP for speaker protection
    • Thermal and excursion protection
    • Detects speaker leaks and damage
  • High efficiency class-H boost converter with multi-level tracking
    • 86% at 500 mW in 8 Ω with 3.6 V VBAT
    • 87% at 700 mW in 8 Ω with 4.2 V VBAT
  • Configurable automatic gain control (AGC)
    • Limits battery current consumption
  • Adjustable class-D switching edge-rate control
  • Thermal, short-circuit, and under-voltage protection
  • I2S, Left-justified, right-justified, DSP, and TDM input and output interface,
  • I2C or SPI interface for register control
  • Stereo configuration using two TAS2557 devices
  • Power supplies
    • Boost input: 2.9 V to 5.5 V
    • Analog/digital: 1.65 V to 1.95 V
    • Digital I/O: 1.62 V to 3.6 V
  • 42-ball, 0.5-mm pitch, DSBGA package
  • Ultra low-noise mono boosted class-D amplifier
    • 5.7 W at 1% THD+N and 6.9 W at 10% THD+N into 4-Ω load from 4.2-V supply
    • 3.8 W at 1% THD+N and 4.5 W at 10% THD+N into 8-Ω load from 4.2-V supply
  • Output noise for DAC + class-D (ICN) is 15.9 µV
  • DAC + class-D SNR 111 dB at 1%THD+N/8 Ω
  • THD+N –90 dB at 1 W / 8 Ω with flat frequency response
  • Post-filter feedback (PFFB)
  • PSRR 110 dB for 200 mVpp ripple at 217 Hz
  • Input sample rates from 8 kHz to 96 kHz
  • Built-in speaker sense
    • Measures speaker current and voltage
    • Measures VBAT voltage, chip temperature
  • Dedicated real-time dual-core DSP for speaker protection
    • Thermal and excursion protection
    • Detects speaker leaks and damage
  • High efficiency class-H boost converter with multi-level tracking
    • 86% at 500 mW in 8 Ω with 3.6 V VBAT
    • 87% at 700 mW in 8 Ω with 4.2 V VBAT
  • Configurable automatic gain control (AGC)
    • Limits battery current consumption
  • Adjustable class-D switching edge-rate control
  • Thermal, short-circuit, and under-voltage protection
  • I2S, Left-justified, right-justified, DSP, and TDM input and output interface,
  • I2C or SPI interface for register control
  • Stereo configuration using two TAS2557 devices
  • Power supplies
    • Boost input: 2.9 V to 5.5 V
    • Analog/digital: 1.65 V to 1.95 V
    • Digital I/O: 1.62 V to 3.6 V
  • 42-ball, 0.5-mm pitch, DSBGA package

The TAS2557 device is a state-of-the-art Class-D audio amplifier which is a full system on a Chip (SoC). The device features a ultra low-noise audio DAC and Class-D power amplifier which incorporates speaker voltage and current sensing feedback. An on-chip, low-latency DSP supports Texas Instruments SmartAmp speaker protection algorithms to maximizes loudness while maintaining safe speaker conditions.

The device can be used easily with any processor with an I2S output and stereo implementations are possible when using two TAS2557 devices. Separate tuning for different speakers is supported allowing customers to add value while maintaining form factor designs. Additionally, the TAS2557 supports separate voice and audio tuning dynamically with ultra-low 15.9 µV ICN regardless of mode of operation making receiver/speaker implementations possible.

A Class-H boost converter generates the Class-D amplifier supply rail. When the audio signal only requires a lower Class-D output power, the boost improves system efficiency by deactivating and connecting VBAT directly to the Class-D amplifier supply. When higher audio output power is required, the multi-level boost quickly activates tracking the signal to provide the additional voltage to the load.

The TAS2557 device is a state-of-the-art Class-D audio amplifier which is a full system on a Chip (SoC). The device features a ultra low-noise audio DAC and Class-D power amplifier which incorporates speaker voltage and current sensing feedback. An on-chip, low-latency DSP supports Texas Instruments SmartAmp speaker protection algorithms to maximizes loudness while maintaining safe speaker conditions.

The device can be used easily with any processor with an I2S output and stereo implementations are possible when using two TAS2557 devices. Separate tuning for different speakers is supported allowing customers to add value while maintaining form factor designs. Additionally, the TAS2557 supports separate voice and audio tuning dynamically with ultra-low 15.9 µV ICN regardless of mode of operation making receiver/speaker implementations possible.

A Class-H boost converter generates the Class-D amplifier supply rail. When the audio signal only requires a lower Class-D output power, the boost improves system efficiency by deactivating and connecting VBAT directly to the Class-D amplifier supply. When higher audio output power is required, the multi-level boost quickly activates tracking the signal to provide the additional voltage to the load.
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若要申請存取 PurePath™ Console 3 和其他設計資源的權限：索取 TAS2557

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類型 標題 日期
* Data sheet TAS2557 5.7-W Class-D mono audio amplifier with class-H boost and speaker sense datasheet (Rev. B) PDF | HTML 2019年 2月 28日
Technical article How smart amps are bringing high-fidelity audio into the smart home PDF | HTML 2021年 5月 3日
Application note Current and Voltage Sensing Accuracy and Linearity PDF | HTML 2020年 7月 21日
Application note Limitations of Capacitor only EMI Filters on Class-D Amplifiers PDF | HTML 2020年 7月 21日
Application note Requesting Access to Audio Software 2020年 6月 18日
User guide SmartAmp Learning Board 2 User's Guide (Rev. A) 2019年 9月 13日
Application note Guidelines for Measuring Audio Power Amplifier Performance (Rev. A) 2019年 8月 26日
Application note Passive Component Selection Guide for Class-D Audio Amplifier 2019年 6月 27日
Application note Battery Voltage Tracking Limiter and Brown-Out Protection PDF | HTML 2019年 6月 26日
Application note PCB Layout Guidelines for TAS2xxx Series Class-D Boosted Audio Amplifier 2019年 6月 6日
Application note Benefits of Class-G and Class-H Boost in Audio Amplifiers 2019年 4月 30日
Application note PLL and Clocking Configuration for Audio Devices PDF | HTML 2019年 3月 26日
Application note How the SmartAmp Speaker Protection Algorithm Compensates the Effects of Series 2018年 8月 8日
Application note SmartPA Speaker Protection Algorithm 2018年 8月 6日
Technical article Smart speakers don’t have to sound as small as they are PDF | HTML 2018年 6月 4日
Technical article Integrating next-generation linear resonance actuator systems PDF | HTML 2017年 12月 28日
Technical article Don’t limit your audio: how to achieve loud sound from a small speaker PDF | HTML 2017年 12月 18日
Application note Post Filter Feedback Class-D Amplifier Benefits and Design Considerations 2017年 11月 14日
Technical article The next generation of linear resonance actuators PDF | HTML 2017年 10月 26日
More literature Calibration and Verification Wave Files 2017年 9月 21日
Application note TAS2557 and TAS2559 End System Integration Guide 2017年 9月 8日
Application note Smart Amp Tuning Guide 2017年 9月 5日
Application note TAS2555, TAS2557, and TAS2559 Factory Test and Calibration Guide 2017年 9月 2日
Application note Smart Amp Quick Start Guide 2017年 8月 3日
EVM User's guide TAS2557EVM User's Guide 2016年 10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

如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。

開發板

PP-SALB2-EVM — PP-SALB2-EVM 智慧放大器喇叭特性化基板評估模組 (學習板 2)

This board supports: TAS2555YZEVM, TAS2557EVM and TAS2559EVM.

The Smart Amplifier Speaker Characterization Board, when used in conjunction with a supported TI Smart Amplifier and PurePath Console software, provides users the ability to measure speaker excursion, temperature and other parameters for (...)

使用指南: PDF
TI.com 無法提供
開發板

TAS2557EVM — 具 H 級升壓和揚聲器感測的 TAS2557 5.7W D 類音訊放大器評估模組

The TAS2557EVM evaluation module provides users with a powerful tool kit for complete assessment of the TAS2557 audio amplifier when used with PurePath™ Console 3 software suite (PPC3). The evaluation module ships with an attached reference speaker. The board provides an USB connection to (...)

使用指南: PDF
TI.com 無法提供
應用軟體及架構

PUREPATHCONSOLE — 適用於音訊系統設計和開發的 PurePath™ Console 圖形開發套件

PurePath™ Console is a highly integrated and easy-to-use audio development suite designed specifically to simplify the evaluation, configuration and debug process associated with the development of audio products. Watch how easy it is to use the PurePath™ Console 3 software.
PurePath Console’s (...)
要求
驅動程式或資料庫

TAS2XXX-DRIVERS — 適用 TAS25XX 和 TAS27XX 系列 D 類放大器的 Android 和其他驅動程序

These Android drivers support TI’s low power digital input Class-D audio amplifier devices. The "Get software" buttons link to git.ti.com repositories for these open-source drivers.
檢視選項
模擬型號

TAS2557 IBIS Model

SLAM294.ZIP (50 KB) - IBIS Model
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模擬工具

PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
要求
參考設計

TIDA-01589 — 具備雜訊消除與回波抵銷功能的高保真、近場雙向音訊參考設計

Man machine interaction requires an acoustic interface for providing full duplex hands-free communication. In hands-free mode, part of the far-end or near-end audio signal from the speaker is coupled to the microphones. Furthermore, in noisy environments the microphones also capture ambient noise (...)
Design guide: PDF
電路圖: PDF
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DSBGA (YZ) 42 檢視選項
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