E-TDA7409D

Audio Special Purpose Overview

The E-TDA7409D is a two-channel audio signal processor manufactured by STMicroelectronics, designed for automotive-grade applications. It operates within a supply voltage range of 7.5V to 10.5V and supports I2C interface control. The device is housed in a 20-SOIC package with a width of 7.50mm and is rated for an operating temperature range of -40°C to +85°C. This component functions as a dedicated audio IC for signal processing tasks in vehicle audio systems.

Audio Special Purpose Feature Summary

• Two-channel audio signal processing capability
• Automotive grade qualification for reliability
• I2C serial bus interface for configuration
• 20-SOIC surface mount packaging

Audio Special Purpose Applications

• Car radio signal processing
• In-vehicle audio system enhancement
• Automotive infotainment front-end processing

Audio Special Purpose Procurement Notes

Verify the specific part number E-TDA7409D against official STMicroelectronics documentation, as standard listings often reference the TDA7404 or TDA7439 series. Confirm availability status directly with authorized distributors, as automotive audio processors may have limited stock or end-of-life statuses. Ensure the 20-SO package matches the target PCB footprint.

Audio Special Purpose Selection Notes

Select this component when a two-channel automotive audio processor with I2C control is required. Compare pin compatibility and feature sets with similar ST parts like the TDA7404 (28-pin) if board space allows for alternative packages. Verify that the 7.5V–10.5V supply range aligns with the vehicle's electrical architecture.

Audio Special Purpose Part Context

This part belongs to STMicroelectronics' portfolio of analog and digital audio processors tailored for automotive infotainment. These components typically handle input selection, volume, tone, and balance controls via serial interfaces, integrating into complex car audio architectures alongside amplifiers and tuners.

Audio Special Purpose Replacement Considerations

Check for direct substitutes within the TDA74xx series. The TDA7404D is a common alternative but uses a 28-SOIC package, requiring schematic and layout review. No other verified public substitute part numbers are identified for the 20-SO variant.