TDA19978AHV/15C185

Specialized Overview

The TDA19978AHV/15C185 is a quad HDMI 1.4a compliant receiver with embedded EDID memory and auto-adaptive equalizers supporting cable lengths up to 25 meters. It processes video resolutions up to 1920x1080p at 60 Hz and PC formats up to UXGA (1600x1200p). The device supports Deep Color modes of 10-bit and 12-bit per color, handling TMDS clock frequencies up to 205 MHz. Audio capabilities include S/PDIF or I2S outputs for up to eight channels at sampling rates up to 192 kHz, alongside High-Bitrate stream support up to 768 kHz. HDCP keys are stored in non-volatile OTP memory.

Specialized Feature Summary

• Quad independent HDMI inputs with embedded auto-adaptive equalizers on all links
• Supports HDTV formats up to 1080p and PC formats up to UXGA with reduced blanking
• Integrated audio processing for multi-channel S/PDIF and I2S outputs including High-Bitrate streams
• Embedded oscillator and programmable color space conversion between RGB and YCbCr

Specialized Applications

• High-End TV systems
• Home theater amplifiers and AVRs
• Projectors and LCD/Plasma TVs
• 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 dimensions and exposed die pad requirements match the target PCB layout. Ensure the design accounts for the required 1.8 V and 3.3 V power supply rails and I2C bus voltage levels.

Specialized Selection Notes

Select this component when a system requires four simultaneous HDMI sources with integrated signal conditioning. It is suitable for designs needing direct digital output without external timing generators. Verify compatibility with downstream DACs requiring system master clocks and ensure the application does not exceed the specified maximum TMDS clock frequency.

Specialized Part Context

This part belongs to NXP's HDMI receiver family designed for consumer electronics. It integrates video and audio processing functions into a single CMOS chip. The device simplifies board design by combining equalization, HDCP decryption, and format recognition features typically found in discrete solutions.

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 supports the same HDMI 1.4a and HDCP 1.4 standards.