GENERAL DESCRIPTION
The ADV7674 is a High-Definition Multimedia Interface (HDMI®)
transceiver.
The ADV7674 supports 48 Gbps fixed rate link (FRL) and
18 Gbps transition minimized differential signaling (TMDS) video
rates and provides four independent HDMI receiver ports, an HDMI
transmitter port, an audio input port, an audio output port, four enhanced
audio return channel (eARC) outputs, and eARC receiver.
InstaPort™ ultrahigh definition (UHD) fast switching is supported
between each HDMI receiver input.
The ADV7674 features an EZ Audio™ 1:4 eARC/ARC switch. The
audio input port and audio output port each support 8‑channel,
192 kHz linear pulse code modulation (LPCM) and compressed
audio formats (see Table 9).
The ADV7674 eARC/ARC transmitters and receiver support
8-channel, 192 kHz LPCM audio and high bit rate audio (HBR)
compressed audio formats including 1-bit Direct Stream Digital®
(DSD) audio, Dolby Atmos™, Dolby TrueHD™, and DTS‑HD™. The
ADV7674 also supports variable refresh rate (VRR), fast Vactive
(FVA), and automatic low latency mode (ALLM) passthrough mode
for HDMI.
The ADV7674 supports passthrough of Display Stream Compression
(DSC) 1.2a data and High Dynamic Range (HDR) metadata
passthrough for HDMI dynamic HDR, HDR10+, and Dolby Vision™.
The ADV7674 implements the High-bandwidth Digital Content Protection
(HDCP) 2.3 specification to protect the delivery of premium
content. HDCP 2.3 is applied in transmitter, receiver, and repeater
configurations, and is backward compatible with HDCP 2.2.
The ADV7674 is configured via I2C using a high level host controller
application programming interface (API).
The ADV7674 is provided in a 108-lead lead frame chip scale
package (LFCSP) with exposed pad and is specified over the 0°C
to 70°C temperature range.
To sample or purchase the ADV7674, customers must be licensed
HDMI 2.1 adopters through HDMI Licensing Administrator, Inc., and
licensed HDCP 2.x adopters through Digital Content Protection, LLC (DCP).

FEATURES
► 4-input, 1-output HDMI transceiver, uncompressed video support
► Up to 8k60 YCbCr 4:2:0 12-bit video support
► Up to 8k30 RGB/YCbCr 4:4:4/4:2:2 12-bit video support
► Up to 4k120 4:4:4 12-bit high frame rate video support
► HDMI inputs
► Up to 48 Gbps FRL support
► Up to 18 Gbps TMDS video support
► InstaPort UHD fast switching
► eARC/ARC transmitter per port
► On-chip, 4-block EDID SRAM per port (EDID content managed
by external MCU through API)
► HDMI output
► Up to 48 Gbps FRL support
► Up to 18 Gbps TMDS video support
► eARC receiver
► HDCP
► HDCP 1.4 and HDCP 2.3 support
► Independent HDCP support on HDMI output and on each
HDMI input
► Fully integrated HDCP 1.4, and HDCP 2.3 repeater modes
► On-chip key storage in OTP memory
► Audio
► EZ Audio 1:4 eARC/ARC switch
► Audio extraction and insertion ports
► 6-channel, 1-bit audio support
► 8-channel, 192 kHz, 24-bit LPCM audio support
► 24.576 Mbps IEC 61937 compressed audio support
► Video
► FRL to TMDS and TMDS to FRL mode conversion
► VRR, FVA, ALLM, and DSC 1.2a passthrough support
► Dynamic HDR passthrough support including HDMI dynamic
HDR metadata, HDR10+, and Dolby Vision
► HDMI 1.4a, HDMI1.4b, HDMI2.0, HDMI2.1 compliant and DVIcompatible
transceiver

APPLICATIONS
► TVs, set top boxes, projectors, audio video receivers, home
theaters, switching, and soundbars