Product details

Audio input type Digital Input Architecture Class-D Speaker channels (Max) 4 Power stage supply (Max) (V) 45 Power stage supply (Min) (V) 4.5 Load (Min) (ohms) 2 Output power (W) 215 SNR (dB) 111 THD + N @ 1 kHz (%) 0.03 Iq (Typ) (mA) 120 Control interface I2C Closed/open loop Closed Analog supply (Min) (V) 4.5 Analog supply (Max) (V) 45 Sampling rate (Max) (kHz) 192 PSRR (dB) 75 Operating temperature range (C) -40 to 125
Audio input type Digital Input Architecture Class-D Speaker channels (Max) 4 Power stage supply (Max) (V) 45 Power stage supply (Min) (V) 4.5 Load (Min) (ohms) 2 Output power (W) 215 SNR (dB) 111 THD + N @ 1 kHz (%) 0.03 Iq (Typ) (mA) 120 Control interface I2C Closed/open loop Closed Analog supply (Min) (V) 4.5 Analog supply (Max) (V) 45 Sampling rate (Max) (kHz) 192 PSRR (dB) 75 Operating temperature range (C) -40 to 125
HTQFP (PHD) 64 196 mm² 14 x 14
  • AEC-Q100 qualified for automotive applications
    • Temperature grade 1: –40°C to +125°C, TA
  • General operation
    • 4.5-V to 45-V supply voltage, 50-V load dump
    • Support for 1.8-V and 3.3-V I/O’s
    • I2C control with 8 address options
    • <2-W idle power loss at 14.4 V, <8-uA 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
    • 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, 192 kHz
    • Secondary low latency path, >70% reduced signal delay at 48 kHz
  • Audio outputs
    • 4-channel bridge-tied load (BTL), configurable 2-channel parallel BTL (PBTL)
    • 384-kHz to 2.1-MHz configurable output switching frequency
    • Up to 10-A channel output current
    • 400-VA peak BTL output power
    • 118 W (45 V, 8 Ω, 1% THD, BTL)
    • 215 W (45 V, 4 Ω, 1% THD, BTL)
  • Audio Performance
    • THD+N 0.03% (8 Ω, 1 W, 1 kHz)
    • 111 dB SNR
    • 37 µV (14.4 V), 80 µV (45 V) 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
    • 4.5-V to 45-V supply voltage, 50-V load dump
    • Support for 1.8-V and 3.3-V I/O’s
    • I2C control with 8 address options
    • <2-W idle power loss at 14.4 V, <8-uA 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
    • 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, 192 kHz
    • Secondary low latency path, >70% reduced signal delay at 48 kHz
  • Audio outputs
    • 4-channel bridge-tied load (BTL), configurable 2-channel parallel BTL (PBTL)
    • 384-kHz to 2.1-MHz configurable output switching frequency
    • Up to 10-A channel output current
    • 400-VA peak BTL output power
    • 118 W (45 V, 8 Ω, 1% THD, BTL)
    • 215 W (45 V, 4 Ω, 1% THD, BTL)
  • Audio Performance
    • THD+N 0.03% (8 Ω, 1 W, 1 kHz)
    • 111 dB SNR
    • 37 µV (14.4 V), 80 µV (45 V) 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 TAS6584-Q1 is a four-channel, digital-input, high-voltage, Class-D audio amplifier that supports up to 45-V supply voltage. In combination with up to 10-A output current, this device delivers maximum output power and high fidelity audio in high and low impedance loads. The device provides four channels at 118 W (45 V, 8 Ω, 1% THD, BTL) and 215 W (45 V, 4 Ω, 1% THD, BTL).

The TAS6584-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 output current sense 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 independent from host and audio input.

To optimize system efficiency, the integrated DSP of the TAS6584-Q1 enables Class-H envelope tracking control, eliminating the need for development of complex tracking software and making local boost voltage control possible without the need for an external microcontroller.

The TAS6584-Q1 device features an additional low-latency signal path for each channel, providing up to 70% faster signal processing at 48 kHz which enables time-sensitive Active Noise Cancellation (ANC), Road Noise Cancellation (RNC) applications.

The device is offered in a 64-pin QFP package with the exposed thermal pad up.

The TAS6584-Q1 is a four-channel, digital-input, high-voltage, Class-D audio amplifier that supports up to 45-V supply voltage. In combination with up to 10-A output current, this device delivers maximum output power and high fidelity audio in high and low impedance loads. The device provides four channels at 118 W (45 V, 8 Ω, 1% THD, BTL) and 215 W (45 V, 4 Ω, 1% THD, BTL).

The TAS6584-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 output current sense 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 independent from host and audio input.

To optimize system efficiency, the integrated DSP of the TAS6584-Q1 enables Class-H envelope tracking control, eliminating the need for development of complex tracking software and making local boost voltage control possible without the need for an external microcontroller.

The TAS6584-Q1 device features an additional low-latency signal path for each channel, providing up to 70% faster signal processing at 48 kHz which enables time-sensitive Active Noise Cancellation (ANC), Road Noise Cancellation (RNC) applications.

The device is offered in a 64-pin QFP package with the exposed thermal pad up.

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Technical documentation

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Type Title Date
* Data sheet TAS6584-Q1 - 45-V​​​, 10-A Digital Input 4-Channel Automotive Class-D Audio Amplifier with Current Sense and Real-time Load Diagnostics datasheet (Rev. A) 28 Mar 2022
Application note 實時負載診斷 07 Mar 2022
More literature 車用 D 類音訊放大器 07 Mar 2022
Application note 실시간 부하 진단 07 Mar 2022
More literature 자동차용 클래스 D 오디오 증폭기 07 Mar 2022
More literature Automotive Class-D Audio Amplifiers 25 Feb 2022
Application note Real-Time Load Diagnostics 24 Feb 2022
Technical article Creating an immersive automotive audio experience with higher output power and Class-H control 22 Feb 2022
Application note Inductor Selection Guide for 2.1 MHz Class-D Amplifiers (Rev. A) 05 Sep 2019

Design & development

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Evaluation board

TAS6584Q1EVM — TAS6584-Q1 evaluation module for 45-V, 10-A digital input, four-channel Class-D audio amp

The TAS6584Q1EVM evaluation module (EVM) showcases TAS6584-Q1, a 45-V, 10-A digital input four-channel automotive, Class-D audio amplifier with current sense and real-time load diagnostics. The EVM also features an on-board USB-I²C controller for GUI driven EVM evaluation. The TAS6584-Q1 (...)

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