DESCRIPTION
●The TAS5414 and TAS5424 are four-channel digital audio amplifiers designed for use in automotive head units and external amplifier modules. The TAS5414 and TAS5424 provide four channels at 23 W continuously into 4 Ω at less than 1% THD+N from a 14.4-V supply. Each channel can also deliver 38 W into 2 Ω at 1% THD+N. The TAS5414 uses single-ended analog inputs, while the TAS5424 employs differential inputs for increased immunity to common-mode system noise. The digital PWM topology of the TAS5414 and TAS5424 provides dramatic improvements in efficiency over traditional linear amplifier solutions. This reduces the power
●dissipated by the amplifier by a factor of ten under typical music playback conditions. High efficiency is accomplished without the need for complicated power-supply schemes. Multiple TAS5414s or TAS5424s can be synchronized to meet high-channel-count applications.
●FEATURES
●• TAS5414 – Single-Ended Input
●• TAS5424 – Differential Input
●• Four-Channel Digital Power Amplifier
●• Four Analog Inputs, Four BTL Power Outputs
●• Typical Output Power per Channel at 10% THD+N
●– 28 W/Ch Into 4 Ω at 14.4 Vdc
●– 45 W/Ch Into 2 Ω at 14.4 Vdc
●– 58 W/Ch Into 4 Ω at 21 Vdc
●– 116 W/Ch Into 2 Ω at 21 Vdc PBTL
●• Channels Can Be Paralleled (PBTL) for 1-Ω Applications
●• THD+N < 0.02%, 1 kHz, 1 W Into 4 Ω
●• Patented Pop- and Click-Reduction Technology
●– Soft Muting With Gain Ramp Control
●– Common-Mode Ramping
●• Patented AM Interference Avoidance
●• Patented Cycle-by-Cycle Current Limit
●• 75-dB PSRR
●• Four-Address I2C Serial Interface for Device Configuration and Control
●• Configurable Channel Gains: 12-dB, 20-dB, 26-dB, 32-dB
●• Load Diagnostic Functions:
●– Output Open and Shorted Load
●– Output-to-Power and -to-Ground Shorts
●– Patented Tweeter Detection
●• Protection and Monitoring Functions:
●– Short-Circuit Protection
●– Load-Dump Protection to 50 V
●– Fortuitous Open Ground and Power Tolerant
●– Patented Output DC Level Detection While Music Playing
●– Overtemperature Protection
●– Over- and Undervoltage Conditions
●– Clip Detection
●• 36-Pin PSOP3 (DKD) Power SOP Package With Heat Slug Up for the TAS5414
●• 44-Pin PSOP3 (DKD) Power SOP Package With Heat Slug Up for the TAS5424
●• Designed for Automotive EMC Requirements
●• Pb-Free Soldering Supported
●• AECQ100 Compliant
●• ISO9000:2002 TS16949 Certified
●• –40°C to 105°C Ambient Temperature Range
●APPLICATIONS
●• High-power OEM/retail head units and amplifier modules where feature densities and
●system configurations require reduction in heat from the audio power amplifier
