而這種差分信號又通過串并轉換器在遠端轉換成并行視頻信號. ISL34340廣泛應用在導航和顯示系統,視頻娛樂系統,工業計算終端以及遙控照相機.本文介紹了ISL34340的主要特性,方框圖以及系統應用方框圖和ISL34340評估板的特性和詳細的電路圖.
The ISL34340 is a serializer/deserializer of LVCMOS parallel video data. The video data presented to the serializer on the parallel LVCMOS bus is serialized into a high-speed differential signal. This differential signal is converted back to parallel video at the remote end by the deserializer. It also transports auxiliary data bidirectionally over the same link during the video vertical retrace interval.
主要特性:
24-bit RGB transport over single differential pair
Bidirectional auxiliary data transport without extra bandwidth and over the same differential pair
40MHz PCLK transports
- SVGA 800 x 600 70fps, 16% blanking
- WSVGA 1024 x 600 60fps, 8% blanking
Internal 100Ω termination on high-speed serial lines
DC balanced 8b/10b line code allows AC-coupling
- Provides immunity against ground shifts
Transmitter amplitude boost and pre-emphasis and receiver equalization allow for longer cable lengths and higher data rates
Same device for serializer and deserializer simplifies inventory
I2C interface
High-speed serial lines meet 8kV ESD rating
應用:
Navigation and display systems
Video entertainment systems
Industrial computing terminals
Remote cameras
圖1. ISL34340方框圖
圖2. ISL34340應用方框圖
The ISL34340 evaluation kit enables the user to exercise the serdes in a lab environment and to see the high speed and parallel signals conveniently on an oscilloscope.
圖3. ISL34340評估板外形圖
圖4. ISL34340評估板電路圖(1)
圖5. ISL34340評估板電路圖(2)
圖6. ISL34340評估板電路圖(3)
圖7. ISL34340評估板電路圖(4)
圖8. ISL34340評估板電路圖(5)
圖9. ISL34340評估板電路圖(6)