TDA19977AHV/15,557

Specialized Overview

The TDA19977AHV/15,557 is a triple-input HDMI 1.3a compliant receiver with embedded EDID memory and an auto-adaptive equalizer supporting cable lengths up to 25 m at 2.25 gigasamples per second. It converts HDMI streams into RGB or YCbCr digital signals, supporting resolutions up to 1920 × 1080p at 50/60 Hz and WUXGA reduced blanking formats. The device features Deep Color processing in 10-bit and 12-bit modes, color gamut metadata packet support, and audio stream handling including HBR, OBA, DST, and DSD. It operates on 1.8 V and 3.3 V supplies within the HLQFP144 package.

Specialized Feature Summary

• Triple independent HDMI inputs with embedded auto-adaptive equalizer for signal quality improvement
• Supports Deep Color processing in 10-bit and 12-bit modes with color gamut metadata packet handling
• Integrated HDCP decryption function with non-volatile OTP key storage for secure repeater applications
• Advanced audio processing capabilities including HBR, OBA, DST, and DSD stream support with multiple output formats

Specialized Applications

• High-end television sets
• Home theater amplifiers and AVRs
• Projectors (plasma and LCD)
• DVD recorders and HDMI splitters

Specialized Procurement Notes

Verify the specific ordering suffix matches the required configuration. Confirm that the HLQFP144 package dimensions align with the target PCB layout. Ensure the design supports the necessary 1.8 V and 3.3 V power supply rails as specified in the electrical characteristics. Check for compatibility with the provided software drivers for I2C-bus configuration.

Specialized Selection Notes

Select the TDA19977A variant if HDCP decryption and repeater functionality are required, as the TDA19977B lacks this feature. Consider the maximum clock frequency of 235 MHz when designing for high-resolution video inputs. Evaluate the need for external termination resistors for the HDMI inputs based on the characteristic impedance requirements. Verify that the system can accommodate the LV-TTL output levels for downstream video processors.

Specialized Part Context

This component belongs to NXP's HDMI receiver interface family designed for digital processing. It serves as a bridge between HDMI sources and media processing ICs, handling format recognition, color space conversion, and audio extraction. The device integrates essential functions like EDID management and activity detection to simplify system design for consumer electronics manufacturers.

Specialized Replacement Considerations

The TDA19977BHV is a compatible alternative within the same series but does not support HDCP decoding. Designers requiring HDCP functionality must retain the TDA19977A variant. No other direct substitutes are documented in the official datasheet.