The Research And Implementation On TV Signal Level Measurement Based On Virgine G2

At present, in the field of broadcasting, TV level measurer has become theindespensable instrument. The purpose of the paper is to research and implement theTV display and TV level measure. We chose the ADC's multimedia chip VirgiveG2as the micro-controller in the project. The hardware structure, the software realizingprinciple of the TV level measurer and the method of the PCB design are described indetail in this paper. The core of this system is Virgine G2 which is a highly integrated image-processedchip for games and video image application. This chip can implement many fuctions,embeded 32-bit microcontroller, integrated audio and video decoder for video signaland the clock can reach to 45MHZ.Besides,it contain a 2D image accelerater based on3D image arithmetic, embeded 32 channel 8/16 bit audio engine,the highest clock ofimage accelerater is 80MHZ. The vedio DAC, DRAM controller,DMA,TIMER,anddual-series port are also included in this chip. This project chose the SAA7114 of Philips and T0944 of Trumpion to finish thevideo converting fuction so that the video data can be accepted by TFT. This systemuse the build-in OSD function of T0944 to implement the on screen display. thereceiveing of RF signal and the measurement of TV level are finished by UV1316and 626.