E-TDA7402TR

Audio Special Purpose Overview

The E-TDA7402TR is an automotive-grade audio signal processor manufactured by STMicroelectronics. It integrates a high-performance DSP and stereo decoder-noise blanker for car radio applications. The device supports I2C digital control and operates within a supply voltage range of 7.5V to 10V. It features three stereo inputs, three mono inputs, four independent speaker outputs, and a stereo subwoofer output. The component is housed in a 44-LQFP exposed pad package with an operating temperature range of -40°C to +85°C.

Audio Special Purpose Feature Summary

• Integrates a stereo decoder and noise blanker with programmable multipath detection
• Provides dynamic compression, bass/treble/loudness controls, and soft mute functions
• Supports full mixing capability and independent second source selection
• Features four independent speaker outputs and a dedicated stereo subwoofer output

Audio Special Purpose Applications

• Car radio signal processing
• Automotive audio systems
• Digital control interfaces for vehicle infotainment

Audio Special Purpose Procurement Notes

Verify the specific ordering suffix 'E' against official STMicroelectronics documentation to confirm if it denotes a specific tape and reel packaging variant or environmental compliance status. Ensure the 44-LQFP-EP package matches the target PCB footprint. Confirm current availability as automotive components may have restricted supply chains.

Audio Special Purpose Selection Notes

Select this component for designs requiring integrated DSP and FM/AM decoding in a single package. Verify that the system design accommodates the 7.5V to 10V supply requirement. Ensure the microcontroller interface supports the I2C bus protocol used for programming filter characteristics and decoder settings.

Audio Special Purpose Part Context

This part belongs to the TDA740x series of car radio signal processors from STMicroelectronics. It is designed to replace older discrete solutions by combining analog signal processing with digital control capabilities. The 'TR' suffix indicates Tape and Reel packaging, suitable for automated surface-mount assembly processes.

Audio Special Purpose Replacement Considerations

Check for direct pin-to-pin replacements within the TDA740x family, such as the TDA7402D (SOIC package) or TDA7404D, if package compatibility allows. Verify functional equivalence regarding input/output configurations and I2C register maps before substitution.