DSP在多大程度上能够替代模拟电路？

[metaphor]

1.用DSP芯片能不能实现调频信号的解调？（20'）
这个功能与摩托罗拉1357芯片相同。
2.用DSP芯片能不能实现带通滤波？（10'）
以上实现要考虑时间代价，如果时间代价太大仍然认为是不可行的。
3.用DSP芯片能不能提取交流信号中的直流分量？（5')
欢迎大家随便谈论。
或者我的认识是错误的，DSP只能用于控制？

[romyks]

DSP是信号 处理!!!!!!!!

[metaphor]

可以应该是可以的，但1可能频率太高，无法数字解调，2不知道，3应该比较简单。
大家谈谈思路，给我一点信心好吗？

[metaphor]

用过DSP的大侠可否谈谈你遇到的困难？

[sclarkca810619]

1,yeah,it can
2,yeah,it can
3,yeah,it can
but you must make clear which functions you need, then you can find the fittable DSP chip.
and you must know the DSP theaory, then you can know which DSP will be used
i give you a URL www.ti.com
you can learn from there

[sclarkca810619]

i haven't use this chip before, you can download the datasheet from the TI
then you can make sense

[metaphor]

我准备用64个脚的2402

[metaphor]

If we want to demodulate a signal, the sample frequency should be twice or more as high as it.It is almost impossible in a noise background.
I hope that you can think twice before you say "yeah". I feel it really tough to
demodulate through a sequence of numbers.
Thank you for your useful advice.