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

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裝置不同
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
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

產品詳細資料

Audio input type Digital Input Architecture Class-D Boosted, Smart Amp Speaker channels (max) Mono Control interface I2C, SPI Output power (W) 5.7 Power stage supply (max) (V) 8.5 Power stage supply (min) (V) 2.7 THD + N at 1 kHz (%) 0.0035 Load (min) (Ω) 4 Analog supply voltage (min) (V) 2.9 Analog supply voltage (max) (V) 5.5 Rating Catalog Operating temperature range (°C) -40 to 85
Audio input type Digital Input Architecture Class-D Boosted, Smart Amp Speaker channels (max) Mono Control interface I2C, SPI Output power (W) 5.7 Power stage supply (max) (V) 8.5 Power stage supply (min) (V) 2.7 THD + N at 1 kHz (%) 0.0035 Load (min) (Ω) 4 Analog supply voltage (min) (V) 2.9 Analog supply voltage (max) (V) 5.5 Rating Catalog 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 PurePathâ„¢ Console 3 和其他設計資源的權限:索取 TAS2557

技術文件

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重要文件 類型 標題 格式選項 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
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)

此電路板支援:TAS2555YZEVMTAS2557EVMTAS2559EVM

智慧型放大器喇叭特性化基板與支援的 TI 智慧型放大器和 PurePath Console 軟體一起使用時,可讓使用者測量喇叭偏移、溫度及其他參數,以搭配 TI 智慧型放大器產品使用。  整個解決方案提供方便使用的逐步程序,引導您完成整個喇叭特性化程序。  完成特性化後,喇叭參數會自動載入 PurePath Console 中,以便開始進行微調,並透過喇叭保護功能獲得最佳音質。

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

TAS2557EVM 評估模組提供使用者強大的工具套件,可在搭配 PurePath™ Console 3 軟體套件 (PPC3) 使用時,完整評估 TAS2557 音訊放大器。評估模組隨附參考喇叭。電路板提供與 PC 的 USB 連線,並由 PPC3 軟體套件控制。PPC3 必須單獨下載。使用 PPC3,您可以根據需要進一步微調解決方案。將兩個 EVM 連接在一起,解決方案就能快速轉變為立體聲解決方案。

EVM 也包含與智慧放大器學習電路板 v2 的連線,可在使用 PPC3 進階功能時,針對您的應用特性分析其他喇叭。

使用指南: PDF
TI.com 無法提供
應用軟體及架構

PUREPATHCONSOLE PurePath™ Console graphical development suite for audio system design and development

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 (...)
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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

這些 Android 驅動程式支援 TI 的低功耗數位輸入 D 類音訊放大器裝置。「取得軟體」按鈕可連結至這些開放原始碼驅動程式的 git.ti.com 存放庫。
支援軟體

TAS2557SW-SA TAS2557SW-SA EVM boards and Software for PurePath™ Smart Amp TAS2557

TAS2557SW-SA EVM boards and Software for PurePath™ Smart Amp TAS2557
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模擬型號

TAS2557 IBIS Model

SLAM294.ZIP (50 KB) - IBIS Model
模擬工具

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

PSpice® for TI 是有助於評估類比電路功能的設計和模擬環境。這款全功能設計和模擬套件使用 Cadence® 的類比分析引擎。PSpice for TI 包括業界最大的模型庫之一,涵蓋我們的類比和電源產品組合,以及特定類比行為模型,且使用無需支付費用。

PSpice for TI 設計和模擬環境可讓您使用其內建函式庫來模擬複雜的混合訊號設計。在進行佈局和製造之前,建立完整的終端設備設計和解決方案原型,進而縮短上市時間並降低開發成本。 

在 PSpice for TI 設計與模擬工具中,您可以搜尋 TI (...)
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

人機互動需要聲學介面,以提供全雙工免手持通訊。在免手持模式下,來自喇叭的部分遠端或近端音訊訊號會耦合至麥克風。此外,在雜訊環境中,除了可擷取有用的近端音訊訊號外,麥克風還會擷取環境雜訊。擷取的多麥克風音訊訊號會受到聲學背景雜訊及回波訊號破壞,這些訊號會大幅降低所需訊號的清晰度,並限制後續音訊處理系統的性能。此參考設計展示了雙麥克風,其用於透過立體聲 ADC 實現音訊輸入,透過低功耗 DSP 執行雜訊降低、聲音回波消除和其他音訊品質強化演算法。此設計還採用了 TI 智慧型放大器技術,可透過微型喇叭實現高品質、高 SPL 音訊輸出。
Design guide: PDF
電路圖: PDF
封裝 針腳 CAD 符號、佔位空間與 3D 模型
DSBGA (YZ) 42 Ultra Librarian

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  • 材料內容
  • 認證摘要
  • 進行中的可靠性監測
內含資訊:
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