TDA7402TR

Audio Special Purpose Overview

The TDA7402TR is an automotive-grade audio signal processor manufactured by STMicroelectronics, housed in a 44-LQFP exposed pad package. It operates within a supply voltage range of 7.5V to 10V and supports an ambient temperature range of -40°C to 85°C. The device integrates four independent speaker outputs and a stereo subwoofer output, controlled via an I2C bus interface. Key features include three stereo inputs, dynamic compression for CD sources, soft step volume control, bass/treble/loudness adjustments, voice-band filtering, direct mute, internal beep generation, full mixing capability, pause detection, and a stereo decoder with RDS mute and AM/FM noise blanking.

Audio Special Purpose Feature Summary

• Four independent speaker outputs and a dedicated stereo subwoofer output
• Integrated stereo decoder with RDS mute and programmable multipath detector
• Digital control via I2C interface for filter characteristics and decoder programming
• Audio processing includes dynamic compression, soft step volume, and voice-band filtering

Audio Special Purpose Applications

• Car radio signal processing
• Automotive audio systems requiring digital control
• Multi-source vehicle entertainment units

Audio Special Purpose Procurement Notes

Verify the 44-LQFP package configuration and I2C interface compatibility during sourcing. Confirm that the operating temperature range of -40°C to 85°C meets specific automotive environmental requirements. Ensure the 7.5V to 10V supply voltage aligns with the target system design specifications before procurement.

Audio Special Purpose Selection Notes

Select this component for applications requiring integrated car radio signal processing with digital control capabilities. The device is suitable for designs needing multiple speaker outputs and a stereo subwoofer channel without external decoders. Verify that the system can support the required I2C communication protocol and power supply constraints.

Audio Special Purpose Part Context

The TDA7402TR belongs to STMicroelectronics' portfolio of automotive audio processors. It is designed to handle low-frequency signal processing and stereo decoding for modern car radios. The TR suffix indicates a tape and reel packaging format, distinct from the standard LQFP variant.

Audio Special Purpose Replacement Considerations

The TDA7405 is listed as a related equalizer car radio signal processor from the same manufacturer. Designers should consult specific datasheets to verify pinout and functional compatibility when considering substitutes.