Home Audio Audio amplifiers Speaker amps
Home
Audio
Audio amplifiers
Speaker amps

TAS6424MS-Q1

ACTIVE

Automotive 45-W, 2-MHz, 4-channel, 4.5- to 18-V digital input Class-D audio amplifier

Order now
Data sheet

TAS6424MS-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) 18 Power stage supply (min) (V) 4.5 Load (min) (Ω) 1 Output power (W) 45 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) 18 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) 18 Power stage supply (min) (V) 4.5 Load (min) (Ω) 1 Output power (W) 45 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) 18 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
  • Audio Outputs
    • Four-channel bridge-tied load (BTL)
    • Two-channel parallel BTL (PBTL)
    • Up to 2.1 MHz output switching frequency
    • 27 W, 10% THD Into 4 Ω at 14.4 V BTL
    • 45 W, 10% THD Into 2 Ω at 14.4 V BTL
    • 80 W, 10% THD Into 2 Ω at 18 V PBTL
  • Audio performance into 4 Ω at 14.4 V BTL
    • THD+N < 0.02% at 1 W
    • 42 µV RMS output noise
    • –90 dB crosstalk
  • Load diagnostics
    • Output open and shorted load
    • Output-to-battery or ground shorts
    • Line output detection up to 6 kΩ
    • Host-independent operation
  • 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 18 V supply voltage
    • I 2C Control with 4 address options
    • Latched & Non-Latched Clip Detect
  • 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
  • Audio Outputs
    • Four-channel bridge-tied load (BTL)
    • Two-channel parallel BTL (PBTL)
    • Up to 2.1 MHz output switching frequency
    • 27 W, 10% THD Into 4 Ω at 14.4 V BTL
    • 45 W, 10% THD Into 2 Ω at 14.4 V BTL
    • 80 W, 10% THD Into 2 Ω at 18 V PBTL
  • Audio performance into 4 Ω at 14.4 V BTL
    • THD+N < 0.02% at 1 W
    • 42 µV RMS output noise
    • –90 dB crosstalk
  • Load diagnostics
    • Output open and shorted load
    • Output-to-battery or ground shorts
    • Line output detection up to 6 kΩ
    • Host-independent operation
  • 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 18 V supply voltage
    • I 2C Control with 4 address options
    • Latched & Non-Latched Clip Detect

The TAS6424MS-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 TAS6424MS-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 TAS6424MS-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 TAS6424MS-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.
filter Find other Speaker amps
Download View video with transcript Video

Request more information

PurePath™ Console 3, TAS6424MS-Q1 GUI and other design resources are available. Request now

Similar products you might be interested in

open-in-new Compare alternates
Drop-in replacement with upgraded functionality to the compared device
TAS6424M-Q1 ACTIVE Automotive, 45-W, 2-MHz, 4-ch 4.5- to 18-V digital input Class-D audio amplifier w/ load dump TAS6424M does NOT have unlatch clip detect feature

Technical documentation

star =Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 2
Type Title Date
* Data sheet TAS6424MS-Q1 45-W,​​​ 2-MHz Digital Input 4-Channel Automotive Class-D Audio Amplifier with Load Dump Protection and I2C Diagnostics datasheet PDF | HTML 02 Nov 2020
EVM User's guide TAS6424MS-Q1 Evaluation Module User's Guide 06 Oct 2020

Design & development

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

Evaluation board

TAS6424MSQ1EVM — 2.1-MHz, 4-ch digital input Class-D audio amplifier with I2C diagnostics evaluation module

The TAS6424MSQ1EVM evaluation module (EVM) showcases the TAS6424MS, a 2.1-Mhz 4-channel digital input class-D audio solution for automotive infotainment. The 2.1-Mhz switching frequency allows users to significantly reduce inductor size and cost and optimize total system cost. TAS6424MS (...)
User guide: PDF
Not available on TI.com
Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Request
Package Pins CAD symbols, footprints & 3D models
HSSOP (DKQ) 56 Ultra Librarian
TI's Standard Terms and Conditions for Evaluation Items apply.

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
Information included:
  • Fab location
  • Assembly location

Recommended products may have parameters, evaluation modules or reference designs related to this TI product.

Support & training

TI E2E™ forums with technical support from TI engineers

View all forum topics

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos