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TAS6424R-Q1

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Automotive, 75-W, 2-MHz, quad-channel, 4.5- to 26.4-V digital input Class-D audio amplifier

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Data sheet

TAS6424R-Q1

ACTIVE
Data sheet Order now

Product details

Audio input type Digital Input Architecture Class-D Speaker channels (max) 4 Rating Automotive Power stage supply (max) (V) 26.4 Power stage supply (min) (V) 4.5 Load (min) (Ω) 1 Output power (W) 75 THD + N at 1 kHz (%) 0.02 Iq (typ) (mA) 165 Control interface I2C Closed/open loop Closed Analog supply (min) (V) 4.5 Analog supply voltage (max) (V) 26.4 Sampling rate (max) (kHz) 96 PSRR (dB) 75 Operating temperature range (°C) -40 to 125
Audio input type Digital Input Architecture Class-D Speaker channels (max) 4 Rating Automotive Power stage supply (max) (V) 26.4 Power stage supply (min) (V) 4.5 Load (min) (Ω) 1 Output power (W) 75 THD + N at 1 kHz (%) 0.02 Iq (typ) (mA) 165 Control interface I2C Closed/open loop Closed Analog supply (min) (V) 4.5 Analog supply voltage (max) (V) 26.4 Sampling rate (max) (kHz) 96 PSRR (dB) 75 Operating temperature range (°C) -40 to 125
HSSOP (DKQ) 56 190.647 mm² 18.42 x 10.35
  • AEC-Q100 Qualified for automotive applications
    • Temperature grade 1: –40°C to +125°C T A
  • Advanced load diagnostics
    • DC Diagnostics run without input clocks
    • AC Diagnostic for tweeter detection with impedance and phase response
  • Easily meets CISPR25-L5 EMC specifications
  • Audio inputs
    • 4 Channel I 2S or 4/8-channel TDM input
    • Input sample rates: 44.1 kHz, 48 kHz, 96 kHz
    • Input formats: 16-bit to 32-bit I 2S, and TDM
    • Support for high resolution audio systems
  • Audio outputs
    • Four-channel bridge-tied load (BTL)
    • Two-channel parallel BTL (PBTL)
    • Up to 2.1 MHz output switching frequency
    • 45 W, 10% THD Into 2 Ω at 14.4 V BTL
    • 75 W, 10% THD Into 4 Ω at 25 V BTL
    • 150W, 10% THD Into 2 Ω at 25 V PBTL
  • Audio performance into 4 Ω at 14.4 V BTL
    • THD+N <0.009% at 1 W
    • 30 µV RMS output noise
    • –97 dB crosstalk
  • Load diagnostics
    • Open load, shorted load, short-to-battery, short-to-ground
    • Line output detection up to 6 kΩ
  • Protection
    • Enhanced reverse current capabilities
    • Output current limiting and short protection
    • 40 V Load dump
    • Open ground and power tolerant
    • DC offset
    • Over-temperature, undervoltage, and overvoltage
  • General operation
    • 4.5 V to 26.4 V supply voltage
    • I 2C Control with 4 address options
    • Latched and non-latched clip detect
    • Enhanced EMI management
  • AEC-Q100 Qualified for automotive applications
    • Temperature grade 1: –40°C to +125°C T A
  • Advanced load diagnostics
    • DC Diagnostics run without input clocks
    • AC Diagnostic for tweeter detection with impedance and phase response
  • Easily meets CISPR25-L5 EMC specifications
  • Audio inputs
    • 4 Channel I 2S or 4/8-channel TDM input
    • Input sample rates: 44.1 kHz, 48 kHz, 96 kHz
    • Input formats: 16-bit to 32-bit I 2S, and TDM
    • Support for high resolution audio systems
  • Audio outputs
    • Four-channel bridge-tied load (BTL)
    • Two-channel parallel BTL (PBTL)
    • Up to 2.1 MHz output switching frequency
    • 45 W, 10% THD Into 2 Ω at 14.4 V BTL
    • 75 W, 10% THD Into 4 Ω at 25 V BTL
    • 150W, 10% THD Into 2 Ω at 25 V PBTL
  • Audio performance into 4 Ω at 14.4 V BTL
    • THD+N <0.009% at 1 W
    • 30 µV RMS output noise
    • –97 dB crosstalk
  • Load diagnostics
    • Open load, shorted load, short-to-battery, short-to-ground
    • Line output detection up to 6 kΩ
  • Protection
    • Enhanced reverse current capabilities
    • Output current limiting and short protection
    • 40 V Load dump
    • Open ground and power tolerant
    • DC offset
    • Over-temperature, undervoltage, and overvoltage
  • General operation
    • 4.5 V to 26.4 V supply voltage
    • I 2C Control with 4 address options
    • Latched and non-latched clip detect
    • Enhanced EMI management

The TAS6424R-Q1 device is a four-channel digital-input Class-D audio amplifier that implements a 2.1 MHz PWM switching frequency enabling a cost-optimized device in a very small PCB size, full operation down to 4.5 V for start/stop events, and exceptional sound quality with up to 40 kHz audio bandwidth.

The output switching frequency can be set either above the AM band, which eliminates AM-band interferences and reduces output filtering and cost, or below the AM band to optimize efficiency.

The device has a built-in load diagnostic function for detecting and diagnosing misconnected outputs as well as detection of AC-coupled tweeters to help to reduce test time during the manufacturing process.

The devices adds EMI management features including spread-spectrum, output phase offset and optimized slew rate to assist in system level EMI challenges.

The TAS6424R-Q1 Class-D audio amplifier is designed for use in automotive head units and external amplifier modules. For pin compatible one, two and four-channel devices see the the Device Options table.

The TAS6424R-Q1 device is a four-channel digital-input Class-D audio amplifier that implements a 2.1 MHz PWM switching frequency enabling a cost-optimized device in a very small PCB size, full operation down to 4.5 V for start/stop events, and exceptional sound quality with up to 40 kHz audio bandwidth.

The output switching frequency can be set either above the AM band, which eliminates AM-band interferences and reduces output filtering and cost, or below the AM band to optimize efficiency.

The device has a built-in load diagnostic function for detecting and diagnosing misconnected outputs as well as detection of AC-coupled tweeters to help to reduce test time during the manufacturing process.

The devices adds EMI management features including spread-spectrum, output phase offset and optimized slew rate to assist in system level EMI challenges.

The TAS6424R-Q1 Class-D audio amplifier is designed for use in automotive head units and external amplifier modules. For pin compatible one, two and four-channel devices see the the Device Options table.
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* Data sheet TAS6424R-Q1 75-W,​​​ 2-MHz Digital Input 4-Channel Automotive Class-D Audio Amplifier with Load Dump Protection and I2C Diagnostics datasheet (Rev. A) PDF | HTML 06 Sep 2023
EVM User's guide TAS6424R-Q1 Evaluation Module User's Guide (Rev. A) PDF | HTML 06 Sep 2023
Certificate TAS6424RQ1EVM EU RoHS Declaration of Conformity (DoC) 28 Mar 2023

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