ADI公司的ADV7612是HDMI接收器,而ADV7511是发送器. ADV7612支持3D TV格式,HDTV格式高达1080p 36位深度色彩,显示分辨率高达UXGA (1600 × 1200 at 60 Hz). ADV7612在两个输入HDMI端口具有高质量的Xpressview快速交换.主要用在投映仪,视频会议,汽车电子,HDTV,AVR和STB,条形音响和视频交换.本文介绍了ADV7612 HDMI接收器和ADV7511 HDMI发送器主要特性, ADV7612功能和内核方框图,以及EVAL-ADV7612-7511视频评估板框图,电路图,材料清单和PCB布局图.
The ADV7612 is offered in automotive, professional (no HDCP), and industrial versions. The operating temperature range is −40℃ to +85℃.
The ADV7612 is a high quality Xpressview™ fast switching HDMI®-capable receiver. It incorporates a dual input HDMI-capable receiver that supports all mandatory 3D TV formats defined in HDMI 1.4a specification, HDTV formats up to 1080p 36-bit Deep Color, and display resolutions up to UXGA (1600 × 1200 at 60 Hz).
It integrates a CEC controller that supports the capability discovery and control (CDC)The ADV7612 incorporates Xpressview fast switching on both input HDMI ports. Using Analog Devices, Inc., hardware-based HDCP engine that minimizes software overhead, Xpressview technology allows fast switching between both HDMI input ports in less than 1 second.
Each HDMI port has dedicated 5 V detect and Hot Plug™ assert pins. The HDMI receiver also includes an integrated program-mable equalizer that ensures robust operation of the interface with long cables.
The ADV7612 offers a flexible audio output port for audio data extraction from the HDMI stream. HDMI audio formats, including SACD via DSD and HBR, are supported by ADV7612. The HDMI receiver has advanced audio functionality, such as a mute controller that prevents audible extraneous noise in the audio output. Additionally, the ADV7612 can be set to output TDM I2S, which provides four multiplexed I2S channels.
The ADV7612 contains one main component processor (CP) that processes the video signals from the HDMI receiver. It provides features such as contrast, brightness and saturation adjustments, STDI detection block, free run, and synchronization alignment controls.
Fabricated in an advanced CMOS process, the ADV7612 is provided in a 14 mm × 14 mm, 100-lead surface-mount LQFP_EP, RoHS-compliant package, and is specified over the −40°C to +85°C temperature range.
ADV7612 HDMI接收器主要特性:
High-Definition Multimedia Interface (HDMI) 1.4a features supported
All mandatory and additional 3D video formats supported
Extended colorimetry, including sYCC601, Adobe RGB, Adobe YCC 601, xvYCC
extended gamut color
CEC 1.4-compatible
HDMI receiver
225 MHz maximum TMDS clock frequency
Xpressview fast switching of HDMI ports
36-/30-bit Deep Color and 24-bit color support
High-bandwidth Digital Content Protection (HDCP) 1.4
support with internal HDCP keys
HDCP repeater support
Up to 127 KSVs supported
Integrated CEC controller
Programmable HDMI equalizer
5 V detect and Hot Plug assert for each HDMI port
Audio support
Audio support including high bit rate (HBR) and direct stream digital (DSD)
S/PDIF (IEC 60958-compatible) digital audio support
Supports up to four I2S outputs and time-division multiplexed (TDM) I2S
Advanced audio mute feature
Dedicated, flexible audio output port
Super audio CD (SACD) with DSD output interface
HBR audio
Dolby® TrueHD
DTS-HD Master Audio™
General
Interrupt controller with two interrupt outputs
Standard Identification (STDI) circuit
Highly flexible 36-bit pixel output interface
Internal EDID RAM
Any-to-any 3 × 3 color space conversion (CSC) matrix
2-layer PCB design supported
100-lead LQFP_EP, 14 mm × 14 mm package
Qualified for Automotive Applications
ADV7612主要应用:
Projectors
Automotive
Video conferencing
HDTVs
AVR, HTiB
Soundbars
Video switches
图1.ADV7612功能方框图
图2.ADV7612 HDMI内核功能方框图
EVAL-ADV7612-7511视频评估板
The Advantiv® EVAL-ADV7612-7511 video evaluation board (AVEB) is a low cost solution for evaluating the performance of the ADV7612 HDMI receiver and/or the ADV7511 HDMI发送器
The evaluation board provides a Blackfin® ADSP-BF524 processor for system control. The ADSP-BF524 offers the potential to process audio (no audio software is included). The evaluation board includes software (firmware) that provides a serial command interface to control the board’s functionality.
This evaluation board is available in two options.
With HDCP support (EVAL-ADV7612-7511), available only to licensees of HDCP Without HDCP support (EVAL-ADV7612-7511P)
ADV7511 HDMI发送器主要特性:
2 HDMI inputs, 1 HDMI output
PC communication via RS-232 or USB interface
Jumperable signal paths for audio and video (jumpers can be removed and signals connected in a different manner)
EQUIPMENT NEEDED
Computer with RS-232 (or USB) I/O to accomplish the following:
Send scripts to the board’s command line interface
Send commands to the board’s repeater software and view software output
Control the board via Advantiv video evaluation software (AVES) application
Update the board’s firmware (if desired or necessary)
图3.EVAL-ADV7612-7511视频评估板外形图
图4.EVAL-ADV7612-7511视频评估板框图
图5.EVAL-ADV7612-7511视频评估板电路图(1)
图6.EVAL-ADV7612-7511视频评估板电路图(2)
图7.EVAL-ADV7612-7511视频评估板电路图(3)
图8.EVAL-ADV7612-7511视频评估板PCB布局图
图9.双路ADV7612电路连接简图
图10.ADV7511和双路ADV7612评估板外形图
