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Audioverstärker für Automobilanwendungen

TAS6422-Q1

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Klasse-D-Audioverstärker m. Digitaleing. für Fahrzeuge, 75 W, 2 MHz, 2 Kanäle, 4,5–26,4 V, Load-Dump

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TAS6422E-Q1 AKTIV Klasse-D-Audioverstärker für Fahrzeuganwendungen mit 75 W, 2 MHz, 2 Kanälen, 4,5 V bis 26,4 V Digita Enhanced (unlatched clip detect and spread spectrum) amplifier

TAS6422-Q1

AKTIV
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Produktdetails

Output power (W) 75 Power stage supply (max) (V) 26.4 Power stage supply (min) (V) 4.5 Speaker channels (max) Stereo Features thermal pad up Audio input type Digital Input Control interface I2C THD + N at 1 kHz (%) 0.03 Switching frequency (max) (Hz) 2100000 Output noise voltage (µV) 42 Sampling rate (max) (Hz) 96000 Rating Automotive Operating temperature range (°C) -40 to 125
Output power (W) 75 Power stage supply (max) (V) 26.4 Power stage supply (min) (V) 4.5 Speaker channels (max) Stereo Features thermal pad up Audio input type Digital Input Control interface I2C THD + N at 1 kHz (%) 0.03 Switching frequency (max) (Hz) 2100000 Output noise voltage (µV) 42 Sampling rate (max) (Hz) 96000 Rating Automotive Operating temperature range (°C) -40 to 125
HSSOP (DKQ) 56 190.647 mm² (18.42 mm × 10.35 mm)
  • Qualified for Automotive Applications
  • Audio Inputs
    • 2 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
    • Two-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 kΩ
    • 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
  • Qualified for Automotive Applications
  • Audio Inputs
    • 2 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
    • Two-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 kΩ
    • 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

The TAS6422-Q1 device is a Two-channel digital-input Class-D audio amplifier designed for use in automotive head units and external amplifier modules. The device provides two 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.

For a pin compatible four-channel devices see the TAS6424-Q1 device.

The TAS6422-Q1 device is a Two-channel digital-input Class-D audio amplifier designed for use in automotive head units and external amplifier modules. The device provides two 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.

For a pin compatible four-channel devices see the TAS6424-Q1 device.
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Technische Dokumentation

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Top-Dokumentation Typ Titel Format-Optionen Neueste englische Version herunterladen Datum
* Datenblatt TAS6422-Q1 75-W, 2-MHz Digital Input 2-Channel Automotive Class-D Audio Amplifi datasheet PDF | HTML 12.12.2016
Anwendungshinweis Class-D Amplifier External Load Diagnostics (Rev. A) PDF | HTML 17.07.2025
Application brief Diagnostics and Protections in Automotive Audio Systems (Rev. A) 24.09.2019
Anwendungshinweis Inductor Selection Guide for 2.1 MHz Class-D Amplifiers (Rev. A) PDF | HTML 05.09.2019
Technischer Artikel How switching above the AM band eases automotive Class-D amplifier EMC designs PDF | HTML 05.12.2016

Design und Entwicklung

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Anwendungssoftware und Frameworks

PUREPATHCONSOLE — PurePath™ Console graphical development suite for audio system design and development

PurePath™ Console ist eine hochintegrierte und benutzerfreundliche Suite für die Entwicklung von Audioanwendungen, die speziell für die Vereinfachung des mit der Entwicklung von Audioprodukten verbundenen Evaluierungs-, Konfigurations- und Debug-Prozesses entwickelt wurde. Sehen Sie sich an, wie (...)

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