Data Sheet

ADV7623

Rev. D | Page 13 of 16

FUNCTIONAL OVERVIEW

HDMI RECEIVER

The ADV7623 front end incorporates a 4:1 multiplexed HDMI

receiver boasting Xpressview fast switching technology and

support for HDMI features including 3D TV, content type bits,

and advanced features, such as capability discovery and control.

Building on the feature set of existing Analog Devices HDMI

devices, the ADV7623 also offers support for all HDTV formats

up to 36-bit, 1080p Deep Color and all display resolutions up to

UXGA (1600 × 1200 at 60 Hz).

Xpressview fast switching technology, using Analog Devices

hardware-based HDCP engine that minimizes software overhead,

allows switching between any two input ports in less than 1 second.

A key feature of the ADV7623 is the on-chip character-based

OSD generator. The OSD generated can be converted to match

the input format 4:2:2 or 4:4:4 in RGB or YCrCb color space. The

OSD is overlaid at the output resolution for best performance. The

OSD portion of the image is optionally semitransparent using a

5-bit alpha blend between the input video and the OSD. The OSD

font characters are stored in either an external SPI flash or read

directly into the RAM when instructed or can be loaded in to

With the inclusion of HDCP 1.4, displays can receive encrypted

video content. The HDMI interface of the ADV7623 allows for

authentication of a video receiver, decryption of encoded data

at the receiver, and renewability of that authentication during

transmission as specified by the HDCP 1.4 protocol. Repeater

support is also offered by the ADV7623.

The HDMI receiver offers advanced audio functionality. It supports

a 6-DSD channel interface with each channel carrying an over-

sampled 1-bit representation of the audio signal as delivered on

SACD. The ADV7623 can also receive HBR audio packet streams

and output them through the HBR interface in an S/PDIF format

conforming to the IEC 60958 standard. S/PDIF is supported via

the HPD back channel. The receiver also contains an audio mute

controller that can detect a variety of conditions that may result

in audible extraneous noise in the audio output. On detection of

these conditions, the audio data can be ramped to prevent audio

clicks or pops.

The ADV7623HDMI receiver incorporates active, programmable

equalization of the HDMI data signals that compensates for the

high frequency losses inherent in HDMI and DVI cabling, especially

at longer lengths and higher frequencies. The receiver also contains

a programmable data island packet interrupt generator.

HDMI TRANSMITTER

The ADV7623 features a single HDMI transmitter supporting

ARC, 3D TV formats as well as all HDTV formats up to 1080p,

36-bit Deep Color.

Supporting both single-ended and differential modes, the ARC

feature simplifies cabling by combining an upstream audio capability

in a conventional HDMI cable.

perform HDCP operations and EDID reading operations.

processor bus driving multiple peripherals. The ADV7623 is

controller.

OTHER FEATURES

Other features include the following:

•

Fully qualified software low level libraries, driver, and

application

•

Complete input and output audio support

•

Programmable interrupt request output pins: INT1, INT2,

and INT_TX

•

Chip select

•

Non-HDCP professional variant available

(ADV7623BSTZ-P). No evaluation board is available

for this variant.

•

Low power consumption: 1.8 V digital core, 1.8 V analog,

and 3.3 V digital input/output, low power power-down

mode, and green PC mode

•

Temperature range: 0°C to 70°C

•

20 mm × 20 mm, Pb-free, 144-lead LQFP

For more detailed product information about the ADV7623,

contact your local Analog Devices sales office.