TAS6424R-Q1 Series
Automotive, 75-W, 2-MHz, quad-channel, 4.5- to 26.4-V digital input Class-D audio amplifier
Manufacturer: Texas Instruments
Catalog
Automotive, 75-W, 2-MHz, quad-channel, 4.5- to 26.4-V digital input Class-D audio amplifier
Key Features
• AEC-Q100 Qualified for automotive applicationsTemperature grade 1: –40°C to +125°C T AAdvanced load diagnosticsDC Diagnostics run without input clocksAC Diagnostic for tweeter detection with impedance and phase responseEasily meets CISPR25-L5 EMC specificationsAudio inputs4 Channel I 2S or 4/8-channel TDM inputInput sample rates: 44.1 kHz, 48 kHz, 96 kHzInput formats: 16-bit to 32-bit I 2S, and TDMSupport for high resolution audio systemsAudio outputsFour-channel bridge-tied load (BTL)Two-channel parallel BTL (PBTL)Up to 2.1 MHz output switching frequency45 W, 10% THD Into 2 Ω at 14.4 V BTL75 W, 10% THD Into 4 Ω at 25 V BTL150W, 10% THD Into 2 Ω at 25 V PBTLAudio performance into 4 Ω at 14.4 V BTLTHD+N <0.009% at 1 W30 µV RMS output noise–97 dB crosstalkLoad diagnosticsOpen load, shorted load, short-to-battery, short-to-groundLine output detection up to 6 kΩProtectionEnhanced reverse current capabilitiesOutput current limiting and short protection40 V Load dumpOpen ground and power tolerantDC offsetOver-temperature, undervoltage, and overvoltageGeneral operation4.5 V to 26.4 V supply voltageI 2C Control with 4 address optionsLatched and non-latched clip detectEnhanced EMI managementAEC-Q100 Qualified for automotive applicationsTemperature grade 1: –40°C to +125°C T AAdvanced load diagnosticsDC Diagnostics run without input clocksAC Diagnostic for tweeter detection with impedance and phase responseEasily meets CISPR25-L5 EMC specificationsAudio inputs4 Channel I 2S or 4/8-channel TDM inputInput sample rates: 44.1 kHz, 48 kHz, 96 kHzInput formats: 16-bit to 32-bit I 2S, and TDMSupport for high resolution audio systemsAudio outputsFour-channel bridge-tied load (BTL)Two-channel parallel BTL (PBTL)Up to 2.1 MHz output switching frequency45 W, 10% THD Into 2 Ω at 14.4 V BTL75 W, 10% THD Into 4 Ω at 25 V BTL150W, 10% THD Into 2 Ω at 25 V PBTLAudio performance into 4 Ω at 14.4 V BTLTHD+N <0.009% at 1 W30 µV RMS output noise–97 dB crosstalkLoad diagnosticsOpen load, shorted load, short-to-battery, short-to-groundLine output detection up to 6 kΩProtectionEnhanced reverse current capabilitiesOutput current limiting and short protection40 V Load dumpOpen ground and power tolerantDC offsetOver-temperature, undervoltage, and overvoltageGeneral operation4.5 V to 26.4 V supply voltageI 2C Control with 4 address optionsLatched and non-latched clip detectEnhanced EMI management
Description
AI
The TAS6424R-Q1 device is a four-channel digital-input Class-D audio amplifier that implements a 2.1 MHz PWM switching frequency enabling a cost-optimized device in a very small PCB size, full operation down to 4.5 V for start/stop events, and exceptional sound quality with up to 40 kHz audio bandwidth.
The output switching frequency can be set either above the AM band, which eliminates AM-band interferences and reduces output filtering and cost, or below the AM band to optimize efficiency.
The device has a built-in load diagnostic function for detecting and diagnosing misconnected outputs as well as detection of AC-coupled tweeters to help to reduce test time during the manufacturing process.
The devices adds EMI management features including spread-spectrum, output phase offset and optimized slew rate to assist in system level EMI challenges.
The TAS6424R-Q1 Class-D audio amplifier is designed for use in automotive head units and external amplifier modules. For pin compatible one, two and four-channel devices see the the Device Options table.
The TAS6424R-Q1 device is a four-channel digital-input Class-D audio amplifier that implements a 2.1 MHz PWM switching frequency enabling a cost-optimized device in a very small PCB size, full operation down to 4.5 V for start/stop events, and exceptional sound quality with up to 40 kHz audio bandwidth.
The output switching frequency can be set either above the AM band, which eliminates AM-band interferences and reduces output filtering and cost, or below the AM band to optimize efficiency.
The device has a built-in load diagnostic function for detecting and diagnosing misconnected outputs as well as detection of AC-coupled tweeters to help to reduce test time during the manufacturing process.
The devices adds EMI management features including spread-spectrum, output phase offset and optimized slew rate to assist in system level EMI challenges.
The TAS6424R-Q1 Class-D audio amplifier is designed for use in automotive head units and external amplifier modules. For pin compatible one, two and four-channel devices see the the Device Options table.