●The TAS6424-Q1 device is a Four-channel digital-input Class-D audio amplifier that implements a 2.1 MHz PWM switching frequency that enables a cost-optimized solution 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 TAS6424-Q1 Class-D audio amplifier is 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 filter size and cost, or below AM band to optimize efficiency.
●For a pin compatible two-channel amplifier, see the TAS6422-Q1
●The device is offered in a 56-pin HSSOP PowerPAD™ package with the exposed thermal pad up.
● Advanced Load Diagnostics
● Runs without Input Clocks
● AC Diagnostic for Tweeter Detection with Impedance and Phase Response
● Easy to meet CISPR25-L5 EMC Specification
● 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 kΩ
● Host-Independent Operation
● Programmability for Flexible Production Line Testing
● Protection
● Output Current Limiting
● Output Short Protection
● 40-V Load Dump
● Open Ground and Power Tolerant
● DC Offset
● Overtemperature
● Undervoltage and Overvoltage
● General Operation
● 4.5-V to 26.4-V Supply voltage
● I2C Control With 4 Address Options
● Clip Detection and Thermal Warning
●All trademarks are the property of their respective owners.
