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音訊、觸覺和壓電
音訊放大器
喇叭、電視與條型音箱音訊放大器

TAS3251

現行

175-W 立體聲道、350-W 單聲道、12 至 38-V 電源、數位輸入 D 級智慧音訊放大器

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產品規格表

TAS3251

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, Smart Amp Speaker channels (max) Stereo Control interface I2C Output power (W) 175 Power stage supply (max) (V) 38 Power stage supply (min) (V) 12 RDS(on) (Ω) 0.06 THD + N at 1 kHz (%) 0.01 Load (min) (Ω) 1 Analog supply voltage (min) (V) 10.8 Analog supply voltage (max) (V) 13.2 Rating Catalog Operating temperature range (°C) 0 to 70
Audio input type Digital Input Architecture Class-D, Smart Amp Speaker channels (max) Stereo Control interface I2C Output power (W) 175 Power stage supply (max) (V) 38 Power stage supply (min) (V) 12 RDS(on) (Ω) 0.06 THD + N at 1 kHz (%) 0.01 Load (min) (Ω) 1 Analog supply voltage (min) (V) 10.8 Analog supply voltage (max) (V) 13.2 Rating Catalog Operating temperature range (°C) 0 to 70
HSSOP (DKQ) 56 190.647 mm² (18.42 mm × 10.35 mm)
  • Flexible audio inputs
    • I2S, TDM, left-justified, right-justified
    • 32kHz, 44.1kHz, 48kHz, 96kHz
    • Supports 3-Wire Digital Input (No MCLK)
  • Total output power at 10% THD+N
    • 175W Stereo into 4Ω in BTL configuration
    • 220W Stereo into 3Ω in BTL configuration
    • 350W Mono into 2Ω in PBTL configuration
  • Total output power at 1% THD+N
    • 140W Stereo into 4Ω in BTL configuration
    • 175W Stereo into 3Ω in BTL configuration
    • 285W Mono into 2Ω in PBTL configuration
  • Advanced integrated closed-loop design
    • Ultra low 0.01% THD+N at 1W Into 4Ω
    • <0.01% THD+N to clipping
    • 60dB PSRR (BTL, no input signal)
    • <95µV Output noise (A-weighted)
    • >108dB SNR (A-weighted)
  • Fixed-function processing features
    • SmartEQ (up to 15x BiQuads per channel)
    • Crossover EQ (2x 5 BiQuads)
    • 3-Band advanced DRC + AGL
    • Dynamic EQ and SmartBass
    • Sample rate Conversion
  • Control features
    • I2C Software mode control
    • Address select pin
  • 90% Efficient class-D operation (4Ω)
  • Wide 12V to 36V supply voltage operation
  • Integrated protection with error reporting: undervoltage, cycle-by-cycle current limit, short circuit, clipping detection, overtemperature warning and shutdown and dc speaker protection
  • Flexible audio inputs
    • I2S, TDM, left-justified, right-justified
    • 32kHz, 44.1kHz, 48kHz, 96kHz
    • Supports 3-Wire Digital Input (No MCLK)
  • Total output power at 10% THD+N
    • 175W Stereo into 4Ω in BTL configuration
    • 220W Stereo into 3Ω in BTL configuration
    • 350W Mono into 2Ω in PBTL configuration
  • Total output power at 1% THD+N
    • 140W Stereo into 4Ω in BTL configuration
    • 175W Stereo into 3Ω in BTL configuration
    • 285W Mono into 2Ω in PBTL configuration
  • Advanced integrated closed-loop design
    • Ultra low 0.01% THD+N at 1W Into 4Ω
    • <0.01% THD+N to clipping
    • 60dB PSRR (BTL, no input signal)
    • <95µV Output noise (A-weighted)
    • >108dB SNR (A-weighted)
  • Fixed-function processing features
    • SmartEQ (up to 15x BiQuads per channel)
    • Crossover EQ (2x 5 BiQuads)
    • 3-Band advanced DRC + AGL
    • Dynamic EQ and SmartBass
    • Sample rate Conversion
  • Control features
    • I2C Software mode control
    • Address select pin
  • 90% Efficient class-D operation (4Ω)
  • Wide 12V to 36V supply voltage operation
  • Integrated protection with error reporting: undervoltage, cycle-by-cycle current limit, short circuit, clipping detection, overtemperature warning and shutdown and dc speaker protection

TAS3251 is a digital-input, high-performance Class-D audio amplifier that enables true premium sound quality with Class-D efficiency. The digital front-end features a high-performance Burr-Brown™ DAC with integrated DSP for advanced audio processing, including SmartAmp and SmartEQ. The first high-power single-chip solution reduces overall system solution size and cost. The DSP is supported by TI PurePath™ Console Graphical tuning software for quick and easy speaker tuning and control. The Class-D power stage features advanced integrated feedback and proprietary high-speed gate drive error correction for ultra-low distortion and noise across the audio band. The device operates in AD-mode and can drive up to 2 x 175W into 4Ω load and 2 x 220W into 3Ω load.

TAS3251 is a digital-input, high-performance Class-D audio amplifier that enables true premium sound quality with Class-D efficiency. The digital front-end features a high-performance Burr-Brown™ DAC with integrated DSP for advanced audio processing, including SmartAmp and SmartEQ. The first high-power single-chip solution reduces overall system solution size and cost. The DSP is supported by TI PurePath™ Console Graphical tuning software for quick and easy speaker tuning and control. The Class-D power stage features advanced integrated feedback and proprietary high-speed gate drive error correction for ultra-low distortion and noise across the audio band. The device operates in AD-mode and can drive up to 2 x 175W into 4Ω load and 2 x 220W into 3Ω load.
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重要文件 類型 標題 格式選項 下載最新的英文版本 日期
* 資料表 TAS3251 175W Stereo, 350W Mono Ultra-HD Digital-Input Class-D Amplifier with Advanced DSP Processing datasheet (Rev. C) PDF | HTML 2025/9/4
Application brief Speaker, TV, Soundbar Audio Amplifiers: Features, Benefits, and Selection Guide PDF | HTML 2026/3/11
應用說明 Power Amplifiers for Constant Voltage Audio Systems PDF | HTML 2022/9/6
技術文章 How smart amps are bringing high-fidelity audio into the smart home PDF | HTML 2021/5/3
應用說明 TAS3251 process flows (Rev. A) 2019/1/22

設計與開發

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開發板

TAS3251EVM — TAS3251 175W 立體聲道 / 350W 單聲道 Ultra-HD 數位輸入 D 類評估模組

TAS3251 Ultra-HD 音訊評估模組展示了德州儀器的 TAS3251 積體電路。TAS3251 為數位輸入、高性能 D 類音訊放大器，可實現真正的頂級音質和 D 類效率。數位前端配備高性能 Burr-Brown™ DAC 並搭載整合式 DSP，可實現進階音訊處理，其中包括 SmartAmp 和 SmartEQ。整合此單晶片解決方案後，即可降低整體系統解決方案的尺寸與成本。TI PurePath™ Console 圖形微調軟體支援 DSP，可快速且輕鬆的調整及控制喇叭。D 類功率級具備高級整合式回饋和專屬高速閘極驅動誤差校正功能，可在音訊頻段中實現超低失真和雜訊。本產品以 AD (...)

使用指南: PDF
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支援軟體

TAS3251-SW — TAS3251 Software

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計算工具

LCFILTER-CALC-TOOL — Class-D LC Filter Designer

使用 D 類 LC 濾波器設計工具，在幾分鐘內計算與設計音訊 D 類 LC 濾波器。  根據 D 類輸出、切換拓撲與性能，從 4 種不同的濾波器類型中選擇。  輸入角頻率與品質 (Q) 因數以微調音訊頻率響應。  最後，使用頻率響應圖與 Q 因數計算，驗證所選 LC 元件與多個揚聲器負載的匹配。  D 類 LC 濾波器設計工具是啟動下一個 D 類音訊設計的完美快速簡易工具！
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HSSOP (DKQ) 56 Ultra Librarian
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