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TAS6424E-Q1

ACTIVE

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

TAS6424E-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 TA
  • 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 I2S or 4/8-channel TDM input
    • Input sample rates: 44.1 kHz, 48 kHz, 96 kHz
    • Input formats: 16-bit to 32-bit I2S, 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 µVRMS 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
    • 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
    • I2C 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 TA
  • 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 I2S or 4/8-channel TDM input
    • Input sample rates: 44.1 kHz, 48 kHz, 96 kHz
    • Input formats: 16-bit to 32-bit I2S, 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 µVRMS 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
    • 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
    • I2C Control with 4 address options
    • Latched and non-latched clip detect
    • Enhanced EMI management

The TAS6424E-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 solution 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 TAS6424E-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 TAS6424E-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 solution 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 TAS6424E-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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Pin-for-pin with same functionality to the compared device
TAS6421-Q1 ACTIVE Automotive, 75-W, 2-MHz, 1-ch 4.5- to 26.4-V digital input Class-D audio amplifier w/ load dump TAS6421-Q1 is a 1-channel automotive Class-D digital input amplifier which implements 2.1-MHz switching frequency.
TAS6422E-Q1 ACTIVE Automotive 75-W, 2-MHz, 2-channel, 4.5-V to 26.4-V digital input Class-D audio amplifier TAS6422E-Q1 is the 2 channel version of TAS6424E-Q1

Technical documentation

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Type Title Date
* Data sheet TAS6424E-Q1 45-W,​​​ 2-MHz Digital Input 4-Channel Automotive Class-D Audio Amplifier with Load Dump Protection and I2C Diagnostics datasheet (Rev. A) PDF | HTML 21 Nov 2021
EVM User's guide TAS6424E-Q1 EVM User's Guide PDF | HTML 13 May 2021

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

TAS6424EQ1EVM — TAS6424E-Q1 evaluation module 75-W, 2-MHz, quad-channel digital input Class-D audio amplifier

The TAS6424EQ1EVM evaluation module (EVM) showcases the TAS6424E-Q1, a  2.1-Mhz, four-channel, digital input Class-D audio amplifier solution for automotive infotainment. The 2.1-Mhz switching frequency allows to significantly reduce inductor size.The TAS6424E-Q1 delivers 25 W (10% THD+N) per (...)
User guide: PDF | HTML
Not available on TI.com
Application software & framework

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 (...)
Supported products & hardware

Supported products & hardware

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