TDA7419

Audio Special Purpose Overview

The TDA7419 is a high-performance audio signal processor designed for car radio applications. It integrates an audio processor with fully integrated filters, utilizing BICMOS technology and linear signal processing to achieve low distortion and noise. The device supports four stereo inputs and provides four independent speaker outputs. Key features include bass, middle, treble, and loudness controls, soft-step volume adjustment, and a seven-band spectrum analyzer. Digital control is managed via an I2C bus interface. It operates within a supply voltage range of 8V to 10V and functions at temperatures from -40°C to +85°C.

Audio Special Purpose Feature Summary

• Four stereo inputs and four independent speaker outputs
• Integrated digital audio filter with programmable characteristics
• I2C bus interface for digital control
• Soft-step speaker/subwoofer control and direct mute

Audio Special Purpose Applications

• Car radio systems
• Automotive audio processors
• Vehicle sound system signal processing

Audio Special Purpose Procurement Notes

The TDA7419 is listed as discontinued by STMicroelectronics. Availability is restricted, and distributors may not stock this item in all regions. Verify current status and potential obsolescence before design-in. Check for official discontinuation notifications or product change notices (PCN) regarding end-of-life status.

Audio Special Purpose Selection Notes

Select the TDA7419 for automotive applications requiring integrated DSP functionality with analog filtering. Ensure the design supports the 8V to 10V supply voltage range and utilizes an I2C controller for configuration. The component is AEC-Q100 qualified for automotive grade reliability. Consider the 28-SOIC package constraints during PCB layout.

Audio Special Purpose Part Context

This component belongs to the TDA74xx series of audio processors from STMicroelectronics. It is specifically engineered for vehicle infotainment systems, offering a compact solution for multi-channel audio management. The device replaces discrete filter and amplifier control circuits by integrating these functions into a single BICMOS chip.

Audio Special Purpose Replacement Considerations

As the TDA7419 is discontinued, verify if the TDA7419TR variant offers identical pinout and functionality. Consult STMicroelectronics documentation for any recommended successor devices or alternative part numbers that maintain compatibility with existing automotive audio architectures.