作者head109 (Miss You~)
看板comm_and_RF
標題[問題] 請教一段句子(關於RECEIVER)
時間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.
在說ADC會影響到接收接輸入端的dynamic range?!不會影響到輸出端!? 雖然後面有提到
原因,可是不很清楚他的意思。
不是EE背景,這方面該打什麼關鍵字去收詢相關知識呢? 謝謝:)
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