TDA7439DS

Audio Special Purpose Overview

The TDA7439DS is a two-channel audio tone processor manufactured by STMicroelectronics, designed for automotive and high-fidelity applications. It integrates volume, bass, mid-range, treble, and balance controls with selectable input gain. The device features an I2C serial interface for programmable operation and operates on a 7V to 10.2V supply voltage within a 0°C to 70°C temperature range. Packaged in a 28-SOIC surface-mount case, it utilizes bipolar/CMOS technology to ensure low distortion and noise performance.

Audio Special Purpose Feature Summary

• Programmable via I2C serial bus for all functions including volume, tone, and balance
• Four stereo inputs with selectable gain for source adaptation
• Treble, mid-range, and bass control adjustable in 2-dB steps
• Independent mute function and two speaker attenuators with 1-dB step resolution

Audio Special Purpose Applications

• Car-radio systems
• Hi-Fi audio systems
• Automotive audio processing

Audio Special Purpose Procurement Notes

Verify the package type against specific requirements, as the TDA7439 family includes both SDIP through-hole and SOIC surface-mount variants. Confirm the exact suffix matches the desired footprint before ordering. Check current availability status as automotive components may have long lead times or discontinuation notices.

Audio Special Purpose Selection Notes

Select the TDA7439DS specifically for surface-mount designs requiring a 28-SOIC package. Ensure the design supports I2C communication lines for configuration. Verify that the power supply rails remain within the 7V to 10.2V operating window to maintain specified electrical characteristics and thermal performance.

Audio Special Purpose Part Context

This component belongs to the TDA7439 series of audio processors from STMicroelectronics. While other variants like the standard TDA7439 exist in different packages, the DS suffix denotes the surface-mount version. It serves as a dedicated solution for managing audio signal conditioning in vehicle infotainment and home audio environments.

Audio Special Purpose Replacement Considerations

Direct pin-to-pin replacements are not explicitly listed in the provided documentation. Engineers should evaluate other ST audio processors with similar I2C interfaces and channel counts if this specific package is unavailable.