TDA7417

Audio Special Purpose Overview

The TDA7417 is a high-performance audio signal processor designed for car radio applications, manufactured by STMicroelectronics. It utilizes a BICMOS process to achieve low distortion and noise. The device features fully integrated digital audio filters controlled via an I2C bus interface. Key electrical parameters include an operating supply voltage range of 8V to 9V, with a typical supply current of 34mA at 8.5V. It supports a wide dynamic range with volume control from +15dB to -79dB in 1dB steps. The component operates within an ambient temperature range of -40°C to +85°C and is housed in a 32-TQFP package.

Audio Special Purpose Feature Summary

• Integrated Input Multiplexer supporting quasi-differential, full-differential, mono, and single-ended stereo inputs with internal offset cancellation (AutoZero).
• Programmable audio filtering including Loudness, Bass (with selectable center frequencies and Q factors), Treble, and High-pass filters.
• Advanced volume control with SoftStep and MultiStep capabilities to minimize audible clicks during level changes.
• Digitally controllable SoftMute function with programmable mute times (0.48ms, 0.96ms, or 123ms) via I2C interface.

Audio Special Purpose Applications

• Car radio audio processing systems
• In-vehicle infotainment audio front-ends
• Automotive speaker management and equalization

Audio Special Purpose Procurement Notes

Verify the specific ordering suffix when purchasing. The standard part number TDA7417 comes in a Tray packing format, while the TDA7417TR variant uses Tape & Reel packaging. Confirm that the required packing style matches the production line equipment specifications before placing orders.

Audio Special Purpose Selection Notes

Select this component for applications requiring a dedicated automotive-grade audio processor with extensive digital filtering options. Ensure the design accommodates the 8V to 9V supply voltage requirement and provides adequate thermal dissipation, as the junction-to-case thermal resistance is 13°C/W. Verify I2C bus compatibility for system integration.

Audio Special Purpose Part Context

The TDA7417 belongs to STMicroelectronics' portfolio of specialized audio processors for the automotive sector. It is distinct from general-purpose audio ICs by its focus on digital control of analog signal paths, specifically tailored for the constraints and requirements of vehicle head units and amplifier stages.

Audio Special Purpose Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Engineers should consult official STMicroelectronics resources or distributor databases for cross-reference information if alternative sourcing is required.