Allwin video launched DM6467 HD video development platform (1)

Allwin video (AVST, Beijing AVSolution Technology Co., Ltd) has been committed to providing customers with more closely to the products of embedded assessment system and reference design, the first to introduce the 1080P H.264-based high-definition video development platform AVST_EVM6467ZUT7 and further support 4-Ch D1 multi-channel video development platform AVST_EVM6467ZUT7-Plus, above both the platform is based on TI's high-end processor TMS320DM6467ZUT7 DaVinciTM family, the processor includes a can run in 729MHz high performance DSP core, one can run in the kernel and ARM926EJ-S 364.5MHz HDVICP HD video co-processor, DM6467ZUT7 maximum can support 1920 x 1080I60/1920 × 1080P30 resolution h.264 HD video encoding/decoding functions.

"Codec is still a high-definition video systems, one of the core competitiveness, to this end we crafted by including AAC-LC/HE and H.264-HP codec algorithm, DSP image gallery, customers can immediately use AVST_EVM6467ZUT7 development platform provides the processor DVTB component evaluation supports H.264 HD video decoding algorithm. "Allwin video software Manager Hou Huan (Touse Hou) said. AVST_EVM6467ZUT7 into numerous original design to help customers quickly launches 1080P high-definition video products, hardware system incorporates eight cascading of PCB design, ensures signal integrity (SI) and power integrity (PI), greatly reducing the cost of the plate. "Since the introduction of family processors DaVinciTM-more power, low voltage high speed DDR2 memory as the memory, especially DM6467ZUT7 this high-performance processor for the requested video ADC sampling clock in the 1080P format is up to UXGA format 148.5MHz, for 162MHz, so we must be careful on the power supply system design, reasonable distribution plate to ensure that the entire stack system ripple on the power sequencing and supply current to meet the high definition video system requirements. "Allwin video platform manager Chen lemon (Lemon Chan) said. In the selection of Flash, AVST chose more reliability, bad blocks fewer, more easy to purchase and welding of TSSOP Package SLC Flash memory chip as a BootROM to reconcile industrial grade application on the reliability of the demand and consumption levels of application for costs.

After extensive market research, AVST adopts a TI high-performance HD video AD chip TVP7002, an ADI's high-performance HD/SD video DA chip ADV7343, cancelled the YPbPr of RCA interface, instead of two DB15 connector Stack, and SD video input, using a TI's TVP5147 high-performance Video Decoder chip.

"We are in fact the deprecated the SD video capability because HD video decoding is DM6467 this processor maximum highlights, but considering that the customer might need in the product's extended SD interface on the Panel, we design incorporates TVP5147 the chip through a 2 × 5 DIP connector for expansion. A DB15 connector, is considered to be a big part of the customer's high-definition video input sources from the desktop or VGA interface, DB15 connector on the projector while taking into account the YPbPr VGA interface and interface, thus covering a larger customer base. "Mr. CHAN lemon (Lemon Chan) said. Support Gigabit Ethernet is another DM6467 processor highlights, due to the high-definition video compressed after the rate will be between 100-megabyte 4Mbps-20Mbps network already insufficient to meet the high definition video network transmission needs, in particular, some require a high quality picture, such as medical systems, broadcasting systems, trial system, etc. [1] [2]