TAS6422E-Q1 Series

Automotive, 75-W, 2-MHz, 2-ch 4.5- to 26.4-V digital input Class-D audio amplifier w/ load dump

Catalog

Automotive, 75-W, 2-MHz, 2-ch 4.5- to 26.4-V digital input Class-D audio amplifier w/ load dump

Part	Output Type	Voltage - Supply [Min]	Voltage - Supply [Max]	Supplied Contents	Max Output Power x Channels @ Load	Board Type	Utilized IC / Part	Contents	Mounting Type	Package / Case	Package / Case	Package / Case	Operating Temperature [Min]	Operating Temperature [Max]	Qualification	Features	Grade	Type	Supplier Device Package
Texas Instruments TAS6422EQ1EVM	2-Channel (Stereo)	4.5 V	26.4 V	Board(s) Cable(s)	27 W 45 W	Fully Populated	TAS6422E-Q1
Texas Instruments TAS6422Q1EVM	2-Channel (Stereo)	4.5 V	26.4 V	Board(s)	2 channels 70 W	Fully Populated	TAS6422-Q1	Board(s)
Texas Instruments TAS6422QDKQRQ1	2-Channel (Stereo)	4.5 V	26.4 V		2 channels 70 W				Surface Mount	7.5 mm	0.295 in	56-PowerBSSOP	-40 °C	125 °C	AEC-Q100	Short-Circuit and Thermal Protection	Automotive	Class D	56-HSSOP
Texas Instruments TAS6422EQDKQRQ1	2-Channel (Stereo)	4.5 V	26.4 V		2 channels 4 Ohm 75 W				Surface Mount	7.5 mm	0.295 in	56-PowerBSSOP	-40 °C	125 °C				Class D	56-HSSOP
Texas Instruments TAS6422QDKQQ1	2-Channel (Stereo)	4.5 V	26.4 V		2 channels 70 W				Surface Mount	7.5 mm	0.295 in	56-PowerBSSOP	-40 °C	125 °C	AEC-Q100	Short-Circuit and Thermal Protection	Automotive	Class D	56-HSSOP

Catalog

Automotive, 75-W, 2-MHz, 2-ch 4.5- to 26.4-V digital input Class-D audio amplifier w/ load dump

Key Features

• AEC-Q100 Qualified for automotive applicationsTemperature grade 1: –40°C to +125°C TAAdvanced load diagnosticsDC Diagnostics run without input clocksAC Diagnostic for tweeter detection with impedance and phase responseEasily meets CISPR25-L5 EMC specificationsAudio inputs2 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 TDMAudio OutputsTwo-channel bridge-tied load (BTL)Single-channel parallel BTL (PBTL)Up to 2.1 MHz output switching frequency45 W, 10% THD+N Into 2 Ω at 14.4 V BTL75 W, 10% THD+N Into 4 Ω at 25 V BTL150W, 10% THD+N Into 2 Ω at 25V PBTLAudio performance into 4 Ω at 14.4 V BTLTHD+N < 0.02% at 1 W42 µVRMSoutput noise–90 dB crosstalkLoad diagnosticsOutput open and shorted loadOutput-to-battery or ground shortsLine output detection up to 6 kΩHost-independent operationProtectionOutput current limiting and short protection40 V Load dumpOpen ground and power tolerantDC offsetOver-temperatureUndervoltage and overvoltageGeneral Operation4.5 V to 18 V supply voltageI2C Control with 4 address optionsLatched & Non-Latched Clip DetectEnhanced EMI ManagementAEC-Q100 Qualified for automotive applicationsTemperature grade 1: –40°C to +125°C TAAdvanced load diagnosticsDC Diagnostics run without input clocksAC Diagnostic for tweeter detection with impedance and phase responseEasily meets CISPR25-L5 EMC specificationsAudio inputs2 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 TDMAudio OutputsTwo-channel bridge-tied load (BTL)Single-channel parallel BTL (PBTL)Up to 2.1 MHz output switching frequency45 W, 10% THD+N Into 2 Ω at 14.4 V BTL75 W, 10% THD+N Into 4 Ω at 25 V BTL150W, 10% THD+N Into 2 Ω at 25V PBTLAudio performance into 4 Ω at 14.4 V BTLTHD+N < 0.02% at 1 W42 µVRMSoutput noise–90 dB crosstalkLoad diagnosticsOutput open and shorted loadOutput-to-battery or ground shortsLine output detection up to 6 kΩHost-independent operationProtectionOutput current limiting and short protection40 V Load dumpOpen ground and power tolerantDC offsetOver-temperatureUndervoltage and overvoltageGeneral Operation4.5 V to 18 V supply voltageI2C Control with 4 address optionsLatched & Non-Latched Clip DetectEnhanced EMI Management

Description

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.