●DESCRIPTION
●The TAS5414A and TAS5424A are four-channel digital audio amplifiers designed for use in automotive head units and external amplifier modules. The TAS5414A and TAS5424A 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 TAS5414A uses single-ended analog inputs, while the TAS5424A employs differential inputs for increased immunity to common-mode system noise. The digital PWM topology of the TAS5414A and TAS5424A 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. The TAS5414A and TAS5424A incorporate all the functionality needed to perform in the demanding OEM applications area. They have built-in load diagnostic functions for detecting and diagnosing misconnected outputs to help to reduce test time during the manufacturing process.
●FEATURES
●• TAS5414A – Single-Ended Input
●• TAS5424A – 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
●• 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 TAS5414A
●• 44-Pin PSOP3 (DKD) Power SOP Package With Heat Slug Up for the TAS5424A
●• 64-Pin QFP (PHD) Power Package With Heat Slug Up for TAS5414A
●• Designed for Automotive EMC Requirements
●• Qualified According to AEC-Q100
●• 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
Part 3D Model
