Automotive emergency call (eCall) audio subsystem reference design
TIDA-00724
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Key Document

Description

The efficiency and diagnostics necessary for automotive emergency call (eCall) systems generate unique requirements for the audio subsystem, such as speaker diagnostics, and low power consumption.  This TI Design shows how to use TI's automotive two-channel audio codec (TLV320AIC3104-Q1) and a class-D audio amplifier (TAS5411-Q1) for eCall applications.

Features

 

• The integrated load-dump protection reduces external voltage clamp cost and size

• Onboard load diagnostics report the status of the speaker through I2C, which reduces external components needed for diagnostic coverage

• TLV320AIC3104-Q1 + TAS5411-Q1 combo allows for reduced power consumption, reduced heat
and reduced peak currents in the electrical system

• TAS5411-Q1 provides up to 8W output power for loud, clear audio in an unpredictable emergency environment

• Additional output from the TLV320AIC3104-Q1 can be used for the head unit or other car audio needs and eliminates the need for another device

 

• The integrated load-dump protection reduces external voltage clamp cost and size

 

• Onboard load diagnostics report the status of the speaker through I2C, which reduces external components needed for diagnostic coverage

 

• TLV320AIC3104-Q1 + TAS5411-Q1 combo allows for reduced power consumption, reduced heat

and reduced peak currents in the electrical system

 

• TAS5411-Q1 provides up to 8W output power for loud, clear audio in an unpredictable emergency environment

 

• Additional output from the TLV320AIC3104-Q1 can be used for the head unit or other car audio needs and eliminates the need for another device


See the Important Notice and Disclaimer covering reference designs and other TI resources.


  



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Design Files

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TI Devices (4)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
TAS5411-Q1  8-W Analog Input Mono Channel Automotive Class-D Audio Amplifier With Load Dump and I2C Diagnostics  Audio amplifiers  Sample & Buy View Design Kits & Evaluation Modules
TLV320AIC3104-Q1  Automotive Low-Power Stereo Audio Codec with 6 Audio Input Pins and 6 Audio Output Drivers  Audio converters  Sample & Buy View Design Kits & Evaluation Modules
TLV320AIC3109-Q1  Automotive Low-Power 96kHz Mono Audio Codec  Audio converters  Sample & Buy View Design Kits & Evaluation Modules
TPD2E007  2-Channel ESD Protection Array for AC Signal Data Interface  Circuit protection  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
TAS5411-Q1 Download
TLV320AIC3104-Q1 Download Download
TLV320AIC3109-Q1 Download Download
Download
TPD2E007 Download Download
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Technical Documents

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User guides (1)
Title Type Size (KB) Date
PDF 1729 24 Jan 2019
Design files (6)
Title Type Size (KB) Date
PDF 403 24 Jan 2019
PDF 59 24 Jan 2019
ZIP 1964 15 Dec 2015
ZIP 1055 15 Dec 2015
PDF 2075 15 Dec 2015
PDF 267 15 Dec 2015

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