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reference designTAS6424-Q1 | Demoboard TIDA-00733

Texas Instruments TAS6424-Q1 | Demoboard TIDA-00733

75-W 2.1-MHz Digital Input 4-Channel Automotive Class-D Audio Amplifier

Overview

TopologyOther Topology

Description

TIDA-00733 is a reference design for an eight-channel, Class-D amplifier that is capable of driving 2-Ω loads and an off-battery step-down power supply with 5-V and 3.3-V outputs. The amplifier design provides audio inputs for each audio channel. A high-performance audio analog-to-digital converter (ADC) creates the digital data stream from the audio inputs and creates the digital timing for the system.

Features

Advanced Load DiagnosticsRuns without Input ClocksAC Diagnostic for Tweeter Detection with Impedance and Phase Response

Easy to meet CISPR25-L5 EMC SpecificationQualified for Automotive ApplicationsAudio Inputs4 Channel I2S or 4/8-Channel TDM InputInput Sample Rates: 44.1 kHz, 48 kHz, 96 kHzInput Formats: 16-bit to 32-bit I2S, and TDM

Audio OutputsFour-Channel Bridge-Tied Load (BTL), With Option of Parallel BTL (PBTL)Up to 2.1-MHz Output Switching Frequency75 W, 10% THD Into 4 Ω at 25 V45 W, 10% THD Into 2 Ω at 14.4 V150 W, 10% THD Into 2 Ω at 25 V PBTL

Audio Performance Into 4 Ω at 14.4 VTHD+N < 0.03% at 1 W42-µVRMS Output Noise–90-dB Crosstalk

Load DiagnosticsOutput Open and Shorted LoadOutput-to-Battery or Ground ShortsLine Output Detection Up to 6 kΩHost-Independent OperationProgrammability for Flexible Production Line Testing

ProtectionOutput Current LimitingOutput Short Protection40-V Load DumpOpen Ground and Power TolerantDC OffsetOvertemperatureUndervoltage and Overvoltage

General Operation4.5-V to 26.4-V Supply voltageI2C Control With 4 Address OptionsClip Detection and Thermal Warning

Typical applications

  • Automotive Head Units / Automotive External Amplifier Modules

More information

Products

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λDom typ.(nm)
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λPeak typ.(nm)
IV typ.(mcd)
VF typ.(V)
Chip Technology
2θ50% typ.(°)
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VR(V (DC))
Size
Operating Temperature
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L(mm)
W(mm)
H(mm)
Fl(mm)
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150060VS75000
SPECWL-SMCW SMT Mono-color Chip LED Waterclear, 570 nm, Bright Green
Simu­lation
Availability
–
Downloads8 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWL-SMCW SMT Mono-color Chip LED Waterclear
Dominant Wavelength [typ.]570 nm
Emitting ColorBright Green 
Peak Wavelength [typ.]572 nm
Luminous Intensity [typ.]40 mcd
Forward Voltage [typ.]2 V
Chip TechnologyAlInGaP 
Viewing Angle Phi 0° [typ.]140 °
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–
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Size0603 
Operating Temperature -40 °C up to +85 °C
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Length1.6 mm
Width0.8 mm
Height0.7 mm
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PackagingTape and Reel 
–Check availability
150060YS75000
SPECWL-SMCW SMT Mono-color Chip LED Waterclear, 590 nm, Yellow
Simu­lation
Availability
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Downloads27 files

RAY files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWL-SMCW SMT Mono-color Chip LED Waterclear
Dominant Wavelength [typ.]590 nm
Emitting ColorYellow 
Peak Wavelength [typ.]595 nm
Luminous Intensity [typ.]120 mcd
Forward Voltage [typ.]2 V
Chip TechnologyAlInGaP 
Viewing Angle Phi 0° [typ.]140 °
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–
–
Size0603 
Operating Temperature -40 °C up to +85 °C
–
–
–
Length1.6 mm
Width0.8 mm
Height0.7 mm
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PackagingTape and Reel 
–Check availability
150060SS75000
SPECWL-SMCW SMT Mono-color Chip LED Waterclear, 630 nm, Super Red
Simu­lation
Availability
–
Downloads27 files

RAY files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWL-SMCW SMT Mono-color Chip LED Waterclear
Dominant Wavelength [typ.]630 nm
Emitting ColorSuper Red 
Peak Wavelength [typ.]645 nm
Luminous Intensity [typ.]60 mcd
Forward Voltage [typ.]1.9 V
Chip TechnologyAlInGaP 
Viewing Angle Phi 0° [typ.]140 °
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–
–
Size0603 
Operating Temperature -40 °C up to +85 °C
–
–
–
Length1.6 mm
Width0.8 mm
Height0.7 mm
–
PackagingTape and Reel 
–Check availability
885012205031
SPECWCAP-CSGP MLCCs 16 V(DC), –, –
Simu­lation
Availability
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Downloads9 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWCAP-CSGP MLCCs 16 V(DC)
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Capacitance10 nF
Capacitance±10% 
Rated Voltage16 V (DC)
Size0402 
Operating Temperature -55 °C up to +125 °C
Dissipation Factor3.5 %
Insulation Resistance10 GΩ
Ceramic TypeX7R Class II 
Length1 mm
Width0.5 mm
Height0.5 mm
Pad Dimension0.25 mm
Packaging7" Tape & Reel 
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