Texas Instruments TAS6424L-Q1 | Demoboard TAS6424L-Q1 EVM

Description

The TAS6424L-Q1 device is a four-channel digital-input Class-D audio amplifier designed for use in automotive head units and external amplifier modules. The device provides four channels at 27 W into 4 Ω at 10% THD+N and 27 W into 2 Ω at 10% THD+N from a 14.4 V supply . The Class-D topology dramatically improves efficiency over traditional linear amplifier solutions. The output switching frequency can be set either above the AM band, which eliminates the AM-band interference and reduces output filtering and cost, or below AM band to optimize efficiency.

Features

Qualified 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 Frequency27 W, 10% THD Into 4 Ω at 14.4 V27 W, 10% THD Into 2 Ω at 14.4 V80 W, 10% THD Into 2 Ω at 18 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 kΩRuns Without Input ClocksAC Diagnostic for Tweeter detection

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

General OperationEVM Passes CISPR25-L5 EMC Specification4.5 V to 18 V Supply voltageI2C Control With 4 Address OptionsClip Detection and Thermal Warning

Typical applications

• Automotive Head Units / Automotive External Amplifier Modules

More information

• Datasheet
• IC product information