| "Anytime, watching TV", once it was our dream. But now with the appearance of mobile phone TV business, it has become true. As the digital multimedia broadcasting technology appears, and the mobile phone TV technology gradually grows up, mobile TV business that is the symbol of the fusion of 3C has aroused wide attention of mobile business area. However, the traditional analog TV can not meet the demand for the public. As the extension of the radio and television, the new digital TV is not only a traditional TV, but also it is a service including image, data and voice etc. The new digital TV is the model of the fusion of 3C, and is the focus of computer,transmission platform and consumer electronics.At present, there are many types terminal product of CMMB in market mainstream, for example, it includes mobile phones, vehicle GPS, the surfer book, digital photo frame, the bluetooth television, receiver and so on. Based on the hardware and software, this paper introduces the way how to realize the system CMMB function, and dwells on the realization of the hardware and software modules. In the process of realization we put MT6225 as platform with multimedia chip TCC7920S and demodulation chip TP3001B, send audio signal to voice equipment by D/A transformation WM8371 devices, and directly pass on image from multimedia chip to LCD module to display. In general we will realize decoding and man-machine interface with the part code of mobile phone baseband circuit and multimedia chip. |
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