General description
The TDA19978A is a four input HDMI 1.3a compliant receiver with embedded EDID memory. The built in auto-adaptive equalizer improves signal quality and allows the use of cable lengths up to 25 m (laboratory tested with a 0.5 mm (24 AWG) cable at 2.05 gigasamples per second). The HDCP key set is stored in non-volatile One Time Programmable (OTP) memory for maximum security. In addition, the TDA19978A is delivered with software drivers to ease configuration and use.

Features and benefits
■ Complies with the HDMI 1.3a, DVI 1.0, CEA-861-D and HDCP 1.2 standards
■ Four (quad) independent HDMI inputs, up to the HDMI frequency of 205 MHz
■ Embedded auto-adaptive equalizer on all HDMI links
■ EDID memory: 253 shared bytes and three bytes dedicated to each HDMI input
■ Supports color depth processing (8-bit, 10-bit or 12-bit per color)
■ Color gamut metadata packet with interrupt on each update, readable via the I2C-bus
■ Up to four S/PDIF or I2S-bus outputs (eight channels) at a sampling rate up to 192 kHz with IEC 60958/IEC 61937 stream
■ HBR audio stream up to 768 kHz with four demultiplexed S/PDIF or I2S-bus outputs
■ HBR streams (e.g. DTS-HD master audio and Dolby TrueHD up to eight channels due to HBR packet for stream with a frame rate up to 768 kHz) support
■ DSD and DST audio stream up to six DSD channels output for SACD with DST Audio Packet support
■ Channel status decoder supports multi-channel reception
■ Improved audio clock generation using an external reference clock
■ System/master clock output (128/256/512 × fs) enables the use of the UDA1334BTS
■ The HDMI interface supports:
   ◆ All HDTV formats up to 1920 × 1080p at 50/60 Hz and WUXGA (1920 × 1200p at 60 Hz) with support for reduced blanking
   ◆ PC formats up to UXGA (1600 × 1200p at 60 Hz)
■ Embedded oscillator (an external crystal can be used)
■ Frame and field detection for interlaced video signal
■ Sync timing measurements for format recognition
■ Improved system for measurements of blanking and video active area allowing an accurate recognition of PC and TV formats
■ HDCP with repeater capability
■ Embedded non-volatile memory storage of HDCP keys
■ Programmable color space input signal conversion from RGB-to-YCbCr or YCbCr-to-RGB
■ Output formats: RGB 4:4:4, YCbCr 4:4:4, YCbCr 4:2:2 semi-planar based on the ITU-R BT.601 standard and YCbCr 4:2:2 ITU-R BT.656
■ 8-bit, 10-bit or 12-bit output formats selectable using the I2C-bus (8-bit and 10-bit only in 4:4:4 format)
■ I2C-bus adjustable timing of video port (tsu(Q) and th(Q))
■ Downsampling-by-two with selectable filters on Cb and Cr channels in 4:2:2 mode
■ Internal video and audio pattern generator
■ Controllable using the I2C-bus; 5 V tolerant and bit rate up to 400 kbit/s
■ DDC-bus inputs 5 V tolerant and bit rate up to 400 kbit/s
■ LV-TTL outputs
■ Power-down mode
■ CMOS process
■ 1.8 V and 3.3 V power supplies
■ Lead-free (Pb) HLQFP144 package

Applications
■ HDTV
■ High-End TV
■ YCbCr or RGB high-speed video digitizer
■ Home theater amplifier
■ Projector, plasma and LCD TV
■ DVD recorder
■ Rear projection TV
■ AVR and HDMI splitter