作者head109 (Miss You~)
看板comm_and_RF
标题[问题] 请教一段句子(关於RECEIVER)
时间Tue Apr 20 21:40:22 2010
ADC devices that operate up to 80-100 MHz are limited to 14 bits resolution.
This places a constraint on the maximum dynamic range available at the input of
the receiver. It should be noted that it does not constrain the dynamic range
of the output baseband data because of the processing gain of the digital down
converter (DDC) as the bandwidth is optimally narrowed in the IF digital
processing.
在说ADC会影响到接收接输入端的dynamic range?!不会影响到输出端!? 虽然後面有提到
原因,可是不很清楚他的意思。
不是EE背景,这方面该打什麽关键字去收询相关知识呢? 谢谢:)
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