ADI 视频编码器EI3接口扩展板解决方案
发布时间：2012-6-6 13:18
发布者：1770309616
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ADI公司的视频编码器EI3扩展板是插在EZ-KIT Lite/EZ评估系统如ADSP-BF609 EZ-KIT Lite®评估系统的扩展接口3(EI3)上的子板,在处理器的并行外设接口(PI)和ADV7511(HDMI发送器)与ADV7341多格式视频编码器之间提供连接,支持EI3标准,而处理器的两线接口(TWI)用来和扩展板的视频编码器和SoftConfig进行通信.译码器采用ADV7842.本文介绍了视频编码器和译码器主要特性,ADV7511和ADV7341主要特性,视频编码器EI3扩展板主要特性,方框图,电路图和材料清单. The Video Encoder EI3 Extender Board is a separately sold daughter board that plugs onto the expansion interface 3 (EI3) of an EZ-KIT Lite/EZ-Board evaluation system. The extender board aids the design and prototyping phases of embedded processor-targeted applications. The board extends the capabilities of the evaluation system by providing a connection between the parallel peripheral interface (PPI) of the processor and the ADV7511 and ADV7341 video encoders. The SPORT is used for transmitting audio data. The two-wire interface (TWI) port of the processor is used to communicate to the video encoders and SoftConfig on the Extender. The following is a list of the Video Encoder EI3 Extender Board interfaces. • Video interface • ADV7511 — 225 MHz, high performance HDMI transmitter with ARC • ADV7341— multi-format video encoder, six 12-bit noiseshaped video DACs • Video connectors • One HDMI • One SVIDEO • One Component • One Composite • No power supply required: derives power from the EZ-KIT Lite/EZ-Board • CE certified • Traditional mechanical switches and jumpers for changing the board’s factory setup have been removed in favor of I2C-controlled software switches. The Video Encoder and Video Decoder EI3 Extender Boards, both EZ-Extender® products, are low cost platforms facilitating the evaluation of video processing on an Analog Devices Embedded Processor via Analog Devices’ EZ-Board development hardware and the CrossCore® Embedded Studio software development environment. The encoder has two video output devices. The first is the Analog Devices ADV7511, an HDMI transmitter for home entertainment products such as gaming consoles, PCs, DVD payers and recorders, digital set top boxes and A/V receivers. The second is the Analog Devices ADV7341, an encoder for DVD recorders and players and HD Blu-ray DVD players. The decoder employs the Analog Devices ADV7842, a device for AVR video receivers, LCD/DLP front projectors, HDTV STBs with PVR, projectors and advanced TVs such as PDP HDTVs, LCD TVs, LCD/DLP rear projection HDTVs, CRT TVs LCoS HDTVs. These EZ-Extenders connect with embedded processor EZ-Boards that support the Expansion Interface 3 (EI3) specification. This new interface facilitates more available signals on the interface connectors and a reduction in size over the previous EI2 specification. Software examples are provided to demonstrate the functionality of the devices on the Extender. 视频编码器主要特性: Multi-format video encoding. 225 MHz high performance HDMI transmitter with ARC. Six 12-bit noise shaped video DACs. Connections include HDMI, SVIDEO, Composite, Component, and VGA. Formats up to 1080p. Color depths up to 24-bits. Soft configuration. 视频译码器主要特性: Dual HDMI 1.4 fast switching receiver. 12-bit, 170 MHz video and graphics digitizer. 3D comb filter decoder. 256 Mbit DDR SDRAM. Power and Two Hot Plug Detect LEDs. Connections include 2 HDMI, DB15 VGA, Composite, Component. Formats up to 1080p. Color depths up to 24-bits. Soft configuration. 高性能HDMI发送器(ADV7511) The ADV7511 is a 225 MHz high-definition multimedia interface (HDMI) transmitter, which is ideal for home entertainment products including DVD players/receivers, digital set top boxes, A/V receivers, gaming consoles and PCs. The digital video interface contains an HDMI v1.4 and a DVI v1.0 compatible transmitter and supports all HDTV formats (including 1080p with 12-bit Deep Color). The ADV7511 supports the HDMI v1.4 specific features, HEAC (ARC), and 3D video. In addition, the ADV7511 supports x.v.Color, high bit rate audio and programmable AVI Info Frames features. With the inclusion of HDCP, the ADV7511 allows the secure transmission of protected content as specified by the HDCP v1.4 protocol. The ADV7511 high-performance HDMI transmitter with ARC connects to the PPI, SPORT, TWI and GPIO of the processor. This device supports up to 1080p. The ADV7511 can be configured to generate an interrupt based on various events. The TWI port is used for communication between the transmitter and processor. The PPI is used for transmitting video data. The SPORT is used for transmitting audio data. An interrupt signal from the transmitter is connected to a GPIO signal on the processor. 多格式视频编码器(ADV7431) The ADV7341 is a high speed, digital-to-analog video encoder. Six high speed, NSV, 3.3V, 12-bit video DACs provide support for composite (CVBS), S-Video (Y-C), and component (YPrPb/RGB) analog outputs in standard definition (SD), enhanced definition (ED), or high definition (HD) video formats. The ADV7341 has a 30-bit pixel input port that can be configured in a variety of ways. SD video formats are supported over an SDR interface and ED/HD video formats are supported over SDR and DDR interfaces. Pixel data can be supplied in either the YCrCb or RGB color space. The part also supports embedded EAV/SAV timing codes, external video synchronization signals, and I2C communication protocol. In addition, simultaneous SD and ED/HD input and output are supported.Full-drive DACs ensure that external output buffering is not required, while 216 MHz (SD and ED) and 297 MHz (HD) oversampling ensures that external output filtering is not required. The ADV7341 multi-format video encoder connects to the PPI and TWI of the processor. This device supports up to 1080i/720p. The TWI port is used for communications between the encoder and processor. The PPI is used for transmitting video data. 
图1.视频编码器和译码器外形图 
图2.视频编码器EI3扩展板方框图 
图3.视频编码器EI3扩展板电路图(1):EI3连接器/ PIO扩展器 
图4.视频编码器EI3扩展板电路图(2):电压转换器 
图5.视频编码器EI3扩展板电路图(3):视频模式 
图6.视频编码器EI3扩展板电路图(4):ADV7511 
图7.视频编码器EI3扩展板电路图(5):ADV7341 
图8.视频编码器EI3扩展板电路图(6):视频连接器 
图9.视频编码器EI3扩展板电路图(7):电源 视频编码器EI3扩展板材料清单: 
视频编码器EI3扩展板和配套使用的ADSP-BF609 EZ-KIT Lite®评估系统见: http://www.eechina.com/thread-89119-1-1.html 详情请见: 
video_encoder_ei3_extender_man_Rev_1_0.pdf
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