TDA9981AHL/15C181,

Video Processing Overview

The TDA9981AHL/15C181 is an HDMI transmitter supporting DVI, designed for video streams up to 150 MHz pixel rate. It features three 8-bit RGB or YCbCr video inputs and four I2S-bus audio channels with S/PDIF support. The device accommodates audio sampling rates up to 192 kHz and includes a programmable input formatter and color space converter. It operates within the 250 MHz to 1.50 GHz frequency range and integrates an HDCP 1.1-compliant cipher block with internal OTP memory.

Video Processing Feature Summary

• Integrates a full programmable input formatter and color space conversion block for flexible video format handling.
• Includes an HDCP 1.1-compliant cipher block with internally stored keys in One Time Programmable non-volatile memory.
• Supports multiple video synchronization methods including horizontal/vertical sync, Data Enable, and VREF/HREF/FREF signals.
• Features low power dissipation with controllable power-down mode and hard reset capabilities.

Video Processing Applications

• DVD players and recorders
• Set-Top Box (STB)
• AV receivers and amplifiers

Video Processing Procurement Notes

Verify the specific ordering suffix C181 against official NXP documentation to confirm package type and reel specifications. Ensure compatibility with system voltage requirements of 1.8 V and 3.3 V. Confirm that the 150 MHz pixel rate limit meets design needs. Check for end-of-life status as older revisions may be discontinued.

Video Processing Selection Notes

Select this component when requiring an HDMI transmitter with integrated HDCP 1.1 encryption and flexible video input formatting. It is suitable for designs needing simultaneous multi-channel I2S audio and S/PDIF transmission. Consider its 150 MHz pixel rate ceiling for resolution requirements. Verify interface compatibility with source devices using CMOS or LV-TTL standards.

Video Processing Part Context

This part belongs to the TDA9981A family of HDMI transmitters from NXP Semiconductors. It is engineered for consumer electronics requiring high-definition video and audio transmission over HDMI interfaces. The device simplifies system design by combining video processing, audio encoding, and security features into a single IC.

Video Processing Replacement Considerations

Consult NXP official documentation for direct substitutes. Verify pinout and functional compatibility before replacing. No public substitute part numbers are confirmed in the provided source material.

Video Processing FAQ

What video input formats does the TDA9981AHL support?

It supports YCbCr 4:4:4 (up to 3 x 8-bit), YCbCr 4:2:2 semi-planar (up to 2 x 12-bit), and ITU656/ITU656-like formats (up to 1 x 12-bit).

How is the HDCP key set managed in this device?

The HDCP key set is stored internally in a One Time Programmable (OTP) non-volatile memory for maximum security.