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TAS6424QDKQQ1 Datasheet(PDF) 1 Page - Texas Instruments |
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TAS6424QDKQQ1 Datasheet(HTML) 1 Page - Texas Instruments |
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1 / 68 page  25-W 4-channel 5.9 cm 2 27 mm Product Folder Sample & Buy Technical Documents Tools & Software Support & Community An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. TAS6424-Q1 SLOS870A – SEPTEMBER 2016 – REVISED OCTOBER 2016 TAS6424-Q1 75-W, 2-MHz Digital Input 4-Channel Automotive Class-D Audio Amplifier With Load-Dump Protection and I2C Diagnostics 1 1 Features 1 • Qualified for Automotive Applications • 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 • Audio Outputs – Four-Channel Bridge-Tied Load (BTL), With Option of Parallel BTL (PBTL) – Up to 2.1-MHz Output Switching Frequency – 75 W, 10% THD Into 4 Ω at 25 V – 45 W, 10% THD Into 2 Ω at 14.4 V – 150 W, 10% THD Into 2 Ω at 25 V PBTL • Audio Performance Into 4 Ω at 14.4 V – THD+N < 0.03% at 1 W – 42-µVRMS Output Noise – –90-dB Crosstalk • Load Diagnostics – Output Open and Shorted Load – Output-to-Battery or Ground Shorts – Line Output Detection Up to 6 k Ω – Runs Without Input Clocks – AC Diagnostic for Tweeter detection • Protection – Output Current Limiting – Output Short Protection – 40-V Load Dump – Open Ground and Power Tolerant – DC Offset – Overtemperature – Undervoltage and Overvoltage • General Operation – EVM Passes CISPR25-L5 EMC Specification – 4.5-V to 26.4-V Supply voltage – I2C Control With 4 Address Options – Clip Detection and Thermal Warning 2 Applications • Automotive Head Units • Automotive External Amplifier Modules 3 Description The TAS6424-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 45 W into 2 Ω at 10% THD+N from a 14.4-V supply and 75 W into 4 Ω at 10% THD+N from a 25-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. The wide supply-voltage range from 4.5 V to 26.4 V helps minimize audio artefacts in start-stop applications The device incorporates all the functionality required to perform in the demanding OEM applications area. The device has a built-in load diagnostic function for detecting and diagnosing misconnected outputs as well as detection AC-coupled tweeters to help to reduce test time during the manufacturing process. The device is offered in a 56-pin HSSOP PowerPAD™ package with the exposed thermal pad up. Device Information(1) PART NUMBER PACKAGE BODY SIZE (NOM) TAS6424-Q1 HSSOP (56) 18.41 mm × 7.49 mm (1) For all available packages, see the orderable addendum at the end of the datasheet. PCB AREA |
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