Dear Herman: The short answer is--to support a much larger, higher reslution display than on the iPhone.
Dear Richard J: Maybe you are one of the few who wants the Tablet PC Microsoft spearheaded a few years back.
You can find out more about the Freescale Smartbook reference design at:
The site includes a fact sheet that gives approximately the same level of detail as a tear-down. I can't find schematics or BOM. They do have pictures and a video.
Thx for your answer. But It puzzled me again. In my mind, whatever BCM5974 or BCM5973 chip, they have the full cap sennsor measurement function,Right?
Use two chips, means the ITO sensor or pattern are divided into two or three parts ? Why not use the same one?And the other Texas Instruments analog chip,
controll these two chips or filter noise or some other functions?
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