TDA7467$

Audio Special Purpose Overview

The TDA7467 is a stereo audio matrix signal processor incorporating licensed SRS (Sound Retrieval System) technology. Manufactured by STMicroelectronics, it supports both stereo and mono source reproduction with specific SRS 3D processing modes. The device features programmable attenuation controls for space, center, and input signals via an I2C serial bus interface. It operates within a supply voltage range of 7V to 10.2V and functions reliably across an ambient temperature range of -10°C to 85°C. Housed in a 28-pin DIP package, it utilizes bipolar/CMOS/DMOS technology to achieve low distortion and noise performance.

Audio Special Purpose Feature Summary

• Integrated SRS Sound Retrieval System for stereo and mono audio processing
• Programmable I2C control for input attenuation, space, and center levels
• Supports SRS 3D Mono and SRS 3D Stereo modes
• Low distortion and noise characteristics using Bipolar/CMOS/DMOS technology

Audio Special Purpose Applications

• Signal mixing in consumer audio systems
• Stereo audio matrix processing
• Mono source enhancement with SRS effects

Audio Special Purpose Procurement Notes

Verify component status as the TDA7467 is listed as obsolete or end-of-life by the manufacturer. Confirm availability through authorized distributors or secondary market sources. Ensure the 28-DIP package matches the target PCB footprint. Check for RoHS compliance documentation if required for specific manufacturing standards. Validate that the I2C interface compatibility aligns with the system controller.

Audio Special Purpose Selection Notes

Select this component when SRS spatial audio enhancement is required for stereo or mono inputs. The 28-DIP through-hole package is suitable for prototyping or legacy board designs. Ensure the design accommodates the 7V to 10.2V supply voltage range. Verify that the I2C bus speed and addressing meet the system requirements. Consider the operating temperature range of -10°C to 85°C for environmental constraints.

Audio Special Purpose Part Context

The TDA7467 belongs to STMicroelectronics' portfolio of audio signal processors designed for consumer electronics. It specifically addresses the need for spatial audio enhancement through licensed SRS technology. This component sits within the broader category of audio DSPs and matrix processors, offering dedicated hardware implementation for SRS effects without requiring complex digital signal processing algorithms.

Audio Special Purpose Replacement Considerations

As the TDA7467 is obsolete, identify alternative audio matrix processors with SRS licensing if available. Verify pinout compatibility for direct replacement in existing designs. Evaluate functional equivalents from other manufacturers that support similar I2C-controlled attenuation and spatial processing features.