详细介绍了GPS、电子罗盘、数字高频头、信标接收机、直流电机驱动、按键、显示、通信等关键硬件电路设计。

Hardware designs the interface circuit between ATmegal280 and GPS. electronic compass, inclinometer, beacon receiver or digital tuner, including DC motor drive, button, display peripheral circuits.

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阐述了数字电视与模拟电视的区别，提出使用单高频头实现液晶数字模拟一体机的设想及设计。

Then it presents a tentative plan of the realization of LCD digital analog integrated machine by a single tuner.

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