參數(shù)資料
型號: EVAL-ADV7623EB1Z
廠商: Analog Devices Inc
文件頁數(shù): 5/16頁
文件大?。?/td> 0K
描述: BOARD EVALUATION FOR ADV7623
標(biāo)準(zhǔn)包裝: 1
系列: Xpressview™
主要目的: 視頻,視頻處理
已用 IC / 零件: ADV7623
已供物品:
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
the on-chip RAM via the SPI or I2C.
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
multichannel I2S audio for up to eight channels. It also 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.
The transmitter features an on-chip MPU with an I2C master to
perform HDCP operations and EDID reading operations.
I2C INTERFACE
The ADV7623 supports a 2-wire serial (I2C-compatible) micro-
processor bus driving multiple peripherals. The ADV7623 is
controlled by an external I2C master device, such as a micro-
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.
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