TDA19978AHV/15,557

Specialized Overview

The TDA19978AHV/15,557 is a quad HDMI 1.4a compliant receiver with embedded EDID memory and auto-adaptive equalizer. It supports four independent HDMI inputs up to 205 MHz TMDS clock frequency. The device converts HDMI streams into RGB or YCbCr digital signals with selectable color depths of 8-bit, 10-bit, or 12-bit per color. It features HDCP 1.4 compliance with non-volatile OTP key storage. Audio processing includes support for IEC 60958/IEC 61937, One Bit Audio (SACD), DST, and HBR streams up to 768 kHz via S/PDIF or I2S outputs. Operating voltages are 1.8 V and 3.3 V.

Specialized Feature Summary

• Quad HDMI input architecture with embedded auto-adaptive equalizer for signal integrity
• Supports Deep Color processing and gamut boundary description metadata
• Integrated audio formatter handling high-bitrate streams and SACD formats
• HDCP repeater capability with secure non-volatile key storage

Specialized Applications

• High-end television sets
• Home theater amplifiers and AVRs
• Projectors and LCD/Plasma displays
• DVD recorders and HDMI splitters

Specialized Procurement Notes

Verify the specific ordering suffix against the manufacturer's current product status documentation. Confirm that the HLQFP144 package variant matches the design requirements. Ensure compatibility with existing I2C bus configurations and power supply rails before finalizing procurement orders.

Specialized Selection Notes

Select this component when a multi-input HDMI receiver with integrated equalization is required. Verify that the target application supports the 1.8 V and 3.3 V dual-supply architecture. Ensure the system design accommodates the LV-TTL output interface and I2C control bus constraints specified in the electrical characteristics.

Specialized Part Context

This part belongs to NXP Semiconductors' HDMI receiver family designed for consumer electronics. It serves as a bridge between HDMI sources and downstream video/audio processors. The device integrates necessary protocol handling and digital conversion functions within a single CMOS package.

Specialized Replacement Considerations

Check for updated revisions within the TDA19978A series. Verify pin-to-pin compatibility if considering alternative HDMI receivers from other manufacturers. Ensure any substitute maintains the same quad-input configuration and HDMI 1.4a compliance level.