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車用音訊放大器

TAS6684-Q1

現行

具電流感測功能的車用、45V、13A、數位輸入、四通道 D 類音訊放大器

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產品規格表

TAS6684-Q1

現行
產品規格表 立即訂購

產品詳細資料

Output power (W) 215 Power stage supply (max) (V) 45 Power stage supply (min) (V) 4.5 Speaker channels (max) 4 Features Current sense, Low latency, real-time load diagnostics, thermal pad up Audio input type Digital Input Control interface I2C THD + N at 1 kHz (%) 0.03 Switching frequency (max) (Hz) 2000000 Output noise voltage (µV) 37 Sampling rate (max) (Hz) 192000 Rating Automotive Operating temperature range (°C) -40 to 125
Output power (W) 215 Power stage supply (max) (V) 45 Power stage supply (min) (V) 4.5 Speaker channels (max) 4 Features Current sense, Low latency, real-time load diagnostics, thermal pad up Audio input type Digital Input Control interface I2C THD + N at 1 kHz (%) 0.03 Switching frequency (max) (Hz) 2000000 Output noise voltage (µV) 37 Sampling rate (max) (Hz) 192000 Rating Automotive Operating temperature range (°C) -40 to 125
HTQFP (PHD) 64 256 mm² (16 mm × 16 mm)
  • AEC-Q100 qualified for automotive applications
    • Temperature grade 1: –40°C to +125°C, TA
  • General operation
    • 4.5V to 45V supply voltage, 50V load dump
    • Support for 1.8V and 3.3V I/O’s
    • I2C control with 8 address options
    • <2-W idle power loss at 14.4V, <8uA max VBAT+PVDD shutdown loss
  • Integrated DSP processing
    • Class-H supply voltage control
    • Thermal monitoring and foldback
    • Clip detection, PVDD monitoring and foldback
  • Output current sensing by channel via I2S/TDM
    • No need for external circuitry
  • Real-time load diagnostics
    • Monitor output conditions while playing audio
    • Real-time temperature monitor for each channel
    • Open load, Shorted load, Short-to-power, Short-to-ground detection
  • DC and AC Standby load diagnostics
  • Audio inputs
    • 2-4 channel I2S or 4-16 channel TDM input
    • Input sample rates: 44.1, 48, 96, 192kHz
    • Low latency < 100us at 96k sample rate
  • Audio outputs
    • 4-channel bridge-tied load (BTL), configurable 2-channel parallel BTL (PBTL)
    • 384kHz to 2MHz configurable output switching frequency
    • Up to 13A channel output current
    • 400VA peak BTL output power
    • 118W (45V, 8Ω, 1% THD, BTL)
    • 218W (45V, 4Ω, 1% THD, BTL)
  • Audio Performance
    • THD+N 0.03% (8Ω, 1W, 1kHz)
    • 111dB SNR
    • 37µV (14.4V), 80µV (45V) output noise
  • Protection
    • Output short protection
    • DC offset, undervoltage and overvoltage
    • Configurable overtemperature warning and individual channel shutdown
    • I2C temperature and supply voltage readout
  • Easily meet CISPR25-L5 EMC specification
    • Advanced spread-spectrum
  • AEC-Q100 qualified for automotive applications
    • Temperature grade 1: –40°C to +125°C, TA
  • General operation
    • 4.5V to 45V supply voltage, 50V load dump
    • Support for 1.8V and 3.3V I/O’s
    • I2C control with 8 address options
    • <2-W idle power loss at 14.4V, <8uA max VBAT+PVDD shutdown loss
  • Integrated DSP processing
    • Class-H supply voltage control
    • Thermal monitoring and foldback
    • Clip detection, PVDD monitoring and foldback
  • Output current sensing by channel via I2S/TDM
    • No need for external circuitry
  • Real-time load diagnostics
    • Monitor output conditions while playing audio
    • Real-time temperature monitor for each channel
    • Open load, Shorted load, Short-to-power, Short-to-ground detection
  • DC and AC Standby load diagnostics
  • Audio inputs
    • 2-4 channel I2S or 4-16 channel TDM input
    • Input sample rates: 44.1, 48, 96, 192kHz
    • Low latency < 100us at 96k sample rate
  • Audio outputs
    • 4-channel bridge-tied load (BTL), configurable 2-channel parallel BTL (PBTL)
    • 384kHz to 2MHz configurable output switching frequency
    • Up to 13A channel output current
    • 400VA peak BTL output power
    • 118W (45V, 8Ω, 1% THD, BTL)
    • 218W (45V, 4Ω, 1% THD, BTL)
  • Audio Performance
    • THD+N 0.03% (8Ω, 1W, 1kHz)
    • 111dB SNR
    • 37µV (14.4V), 80µV (45V) output noise
  • Protection
    • Output short protection
    • DC offset, undervoltage and overvoltage
    • Configurable overtemperature warning and individual channel shutdown
    • I2C temperature and supply voltage readout
  • Easily meet CISPR25-L5 EMC specification
    • Advanced spread-spectrum

The TAS6684-Q1 is a four-channel, digital-input, high-voltage, Class-D audio amplifier that supports up to 45V supply voltage. Combined with up to 13A output current, this device delivers maximum output power and high fidelity audio in high and low impedance loads. The device provides four channels at 118W (45V, 8Ω, 1% THD, BTL) and 218W (45V, 4Ω, 1% THD, BTL).

The TAS6684-Q1 integrates DC and AC load diagnostics to determine the status of the connected loads before enabling the output stage. During audio playback, the status can be monitored through the output current sense and temperature of each channel which is available for each channel, and reports the measurement to a host processor through TDM with minimal delay. The device monitors the output load condition while playing audio using real-time load diagnostics which operate independently from the host and audio input.

To optimize system efficiency, the integrated DSP of the TAS6684-Q1 enables Class-H envelope tracking control, eliminating the need for the development of complex tracking software and making local boost voltage control possible without the need for an external microcontroller.

The TAS6684-Q1 device features an additional low-latency signal path for each channel, providing up to 70% faster signal processing at 48kHz and support an audio signal path latency of < 100us at 96kHz sample rate, which enables time-sensitive Active Noise Cancellation (ANC), Road Noise Cancellation (RNC) applications.

The TAS6684-Q1 is offered in a 64-pin QFP package with the exposed thermal pad up, TAS6684-Q1 is pin-to-pin compatible with TAS6584-Q1.

The TAS6684-Q1 is a four-channel, digital-input, high-voltage, Class-D audio amplifier that supports up to 45V supply voltage. Combined with up to 13A output current, this device delivers maximum output power and high fidelity audio in high and low impedance loads. The device provides four channels at 118W (45V, 8Ω, 1% THD, BTL) and 218W (45V, 4Ω, 1% THD, BTL).

The TAS6684-Q1 integrates DC and AC load diagnostics to determine the status of the connected loads before enabling the output stage. During audio playback, the status can be monitored through the output current sense and temperature of each channel which is available for each channel, and reports the measurement to a host processor through TDM with minimal delay. The device monitors the output load condition while playing audio using real-time load diagnostics which operate independently from the host and audio input.

To optimize system efficiency, the integrated DSP of the TAS6684-Q1 enables Class-H envelope tracking control, eliminating the need for the development of complex tracking software and making local boost voltage control possible without the need for an external microcontroller.

The TAS6684-Q1 device features an additional low-latency signal path for each channel, providing up to 70% faster signal processing at 48kHz and support an audio signal path latency of < 100us at 96kHz sample rate, which enables time-sensitive Active Noise Cancellation (ANC), Road Noise Cancellation (RNC) applications.

The TAS6684-Q1 is offered in a 64-pin QFP package with the exposed thermal pad up, TAS6684-Q1 is pin-to-pin compatible with TAS6584-Q1.
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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 TAS6684-Q1 - 45V​​​, 13A Digital Input 4-Channel Automotive Class-D Audio Amplifier with Current Sense and Real-time Load Diagnostics datasheet (Rev. A) PDF | HTML 2024/10/15
Application brief Speaker, TV, Soundbar Audio Amplifiers: Features, Benefits, and Selection Guide PDF | HTML 2026/3/11
應用說明 TAS6x84 Output Current and Voltage Measurement PDF | HTML 2025/3/18
應用說明 TAS6x84-Q1 LC Filter Selection Guide PDF | HTML 2024/10/15

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TAS6684Q1EVM — TAS6684-Q1 評估模組

TAS6684Q1EVM 展示搭載整合式 DSP、閉合迴路 D 類音訊放大器的 TAS6684-Q1 車用四通道數位輸入。評估模組 (EVM) 需要使用 PurePath™ Console (PPC3) 圖形使用者介面 (GUI) 外掛程式，以編程 I2C 暫存器設定。此 EVM 也可用於使用 PPC3 GUI 的開發目的。
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應用軟體及架構

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

PurePath™ Console 是一款高度整合且容易使用的音訊開發套件，專爲簡化音訊產品開發相關評估、配置和偵錯程序所設計。瞭解使用 PurePath™ Console 3 軟體有多簡單。

PurePath Console 的直覺式圖形介面無需進階音訊工程專業，因此讓音訊設計更加簡明直觀。在簡單易用的圖形介面中，實作 PurePath Console 的眾多進階控制功能，並以縮短產品開發時間為目標，為您實現高度最佳化的音訊性能、最低功耗和順暢系統整合。

支援的裝置：

PurePath™ Console 1：PCM5142、TAS5721、TAS5729MD、TAS5731 和 (...)
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參考設計

TIDA-020088 — 八通道 1kVA H 類音訊放大器參考設計

此參考設計展示 1kVA H 類音訊與追蹤電源供應音訊子系統。TAS6684-Q1 音訊放大器可追蹤數位音訊輸入的包絡線，並調整 LM5125A-Q1 升壓輸出電壓以符合電源效率需求，無需使用外部微控制器。此設計可提升效率、熱性能，且總佔用面積更小。此外，此參考設計也允許 H 類實作隨插即用，對汽車音訊架構的其他部分只有最少的軟體更動。

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