TAS6424MS-Q1中文资料汽车类 45W、2MHz、4 通道、4.5V 至 18V 数字输入 D 类音频放大器数据手册TI规格书

描述 Description

The TAS6424MS-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 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 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 TAS6424MS-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.

特性 Features

• AEC-Q100 Qualified for automotive applications
• Advanced load diagnostics
• AC Diagnostic for tweeter detection with impedance and phase response
• Easily meets CISPR25-L5 EMC specifications
• 4 Channel I2S or 4/8-channel TDM input
• Input formats: 16-bit to 32-bit I2S, and TDM
• Audio Outputs
• Two-channel parallel BTL (PBTL)
• 27 W, 10% THD Into 4 Ω at 14.4 V BTL
• 80 W, 10% THD Into 2 Ω at 18 V PBTL
• Audio performance into 4 Ω at 14.4 V BTL
• –90 dB crosstalk
• Load diagnostics
• Output-to-battery or ground shorts
• Host-independent operation
• Protection
• 40 V Load dump
• DC offset
• Undervoltage and overvoltage
• General Operation
• I2C Control with 4 address options
• Latched & Non-Latched Clip Detect