E-TDA7402

Audio Special Purpose Overview

The STMicroelectronics E-TDA7402 is an automotive-grade audio signal processor 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 stereo decoding, noise blanking, and comprehensive low-frequency signal processing for car radios. Key electrical features include three stereo inputs, three mono inputs, four independent speaker outputs, and a stereo subwoofer output. Digital control is managed via an I2C bus interface, allowing programmable filter characteristics without external adjustments.

Audio Special Purpose Feature Summary

• Integrated stereo decoder with AM/FM noiseblanker and programmable multipath detector
• Full audio processing including bass, treble, loudness control, and dynamic compression
• Four independent speaker outputs plus a dedicated stereo subwoofer output
• I2C digital control interface for programmable parameters and soft mute functions

Audio Special Purpose Applications

• Automotive radio signal processing
• Car audio tone processors
• Vehicle infotainment systems

Audio Special Purpose Procurement Notes

Verify the specific ordering suffix against official STMicroelectronics documentation to confirm exact packaging and tape/reel specifications. Ensure the procurement channel provides valid traceability for automotive-grade components. Confirm that the 44-LQFP-EP (10x10) package matches the design footprint requirements.

Audio Special Purpose Selection Notes

Select this component for applications requiring integrated stereo decoding and multi-channel audio processing in a single IC. The I2C interface allows for flexible configuration of audio filters and volume controls. Ensure the system power supply remains within the 7.5V to 10V operating range and that the PCB layout accommodates the exposed pad thermal requirements for the 44-LQFP package.

Audio Special Purpose Part Context

The TDA7402 series serves as a specialized solution for automotive audio systems, combining signal processing and stereo decoding capabilities. This family of devices is designed to reduce component count and simplify board layout in car radios by integrating functions such as noise blanking, equalization, and source selection into a single chip controlled via digital interfaces.

Audio Special Purpose Replacement Considerations

Consult STMicroelectronics documentation for direct pin-compatible alternatives within the TDA74xx series. Verify functional equivalence regarding input/output configurations and I2C command sets before substituting.