TDA9950TT/C3,512

Specialized Overview

The TDA9950TT/C3,512 is a single-chip CEC/I2C-bus translator designed for HDMI control and interfacing. It bridges the Consumer Electronics Control protocol with standard I2C-bus communication. The device operates within a 3.0 V to 3.6 V supply voltage range and supports an ambient temperature of 0 °C to 70 °C. It features a 12 MHz on-chip oscillator requiring an external crystal. The I2C interface supports Standard mode at 100 kHz and Fast mode at 400 kHz. Total power dissipation is 33 mW in operating mode and 16 mW in Idle mode.

Specialized Feature Summary

• Translates between CEC protocol timings and standard I2C-bus signals
• Includes embedded processor software for automatic message handling
• Supports multiple logical addresses and messages up to 16 bytes
• Features automatic Idle mode to minimize power consumption

Specialized Applications

• Devices utilizing HDMI connectors
• Projectors, plasma, and LCD TVs
• Rear-projection TVs
• High-end televisions
• Home-theater amplifiers

Specialized Procurement Notes

Verify component authenticity through official NXP channels or authorized distributors. Confirm the specific suffix matches the required package and temperature grade. Request original manufacturer documentation to validate revision history and ensure compliance with current product data sheets.

Specialized Selection Notes

Select this component when integrating CEC functionality into systems lacking native support. Ensure the host processor provides a compatible I2C interface. Verify that the system power supply remains within the specified 3.0 V to 3.6 V range. Check pin compatibility if replacing existing designs.

Specialized Part Context

This part belongs to the TDA9950 family of CEC/I2C-bus translators manufactured by NXP Semiconductors. It serves as a dedicated interface solution for managing HDMI control signals in consumer electronics. The TT variant indicates the specific plastic thin shrink small outline package configuration used for surface mounting.

Specialized Replacement Considerations

NXP has indicated that the TDA9950 is no longer manufactured and there is currently no direct replacement in their portfolio. Designers must evaluate alternative solutions or manage end-of-life inventory carefully.