TDA7429S

Audio Special Purpose Overview

The TDA7429S is a two-channel audio tone processor manufactured by STMicroelectronics, designed for consumer audio applications. It operates on a supply voltage range of 7V to 10.2V and supports I2C interface control. The device features a specification accuracy of 0.5dB and functions within an ambient temperature range of 0°C to 70°C. It is housed in a 42-SDIP package (0.600 inch / 15.24mm width) with through-hole mounting capabilities. This component integrates tone processing functions into a single integrated circuit suitable for stereo signal chains.

Audio Special Purpose Feature Summary

• Two-channel audio tone processor architecture
• I2C digital interface for control
• 0.5dB specification accuracy
• 42-SDIP through-hole package

Audio Special Purpose Applications

• Consumer audio systems

Audio Special Purpose Procurement Notes

Verify the current lifecycle status as the product is listed as obsolete or discontinued in distributor records. Confirm availability of the 42-SDIP package variant specifically, as lead times may vary significantly for end-of-life components. Ensure design-in compatibility with existing I2C bus configurations before procurement.

Audio Special Purpose Selection Notes

Select this component when a dedicated two-channel tone processor with I2C control is required for consumer audio designs. The 42-SDIP package necessitates through-hole PCB layout considerations. Verify that the system power supply remains within the 7V to 10.2V operating range and that the thermal environment stays between 0°C and 70°C.

Audio Special Purpose Part Context

The TDA7429S belongs to the TDA7429 basic product line from STMicroelectronics. It serves as a specialized analog audio processor distinct from power amplifiers like the TDA7294 series or other DSPs such as the TDA7419. Its primary role is signal conditioning rather than power output.

Audio Special Purpose Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. As the component is marked as obsolete, alternative sourcing requires checking for direct pin-compatible equivalents or updated family members with verified datasheet support.