作者kevilright (~~~~~~~~~~~~~~~~~~~~~~~)
看板comm_and_RF
標題[問題] DAC spec相關問題??
時間Fri Jul 11 16:18:34 2008
※ [本文轉錄自 Electronics 看板]
作者: kevilright (~~~~~~~~~~~~~~~~~~~~~~~) 看板: Electronics
標題: [問題] DAC spec相關問題??
時間: Fri Jul 11 16:17:06 2008
我想請問一下
關於DAC 其SPEC上的一些問題
http://www.analog.com/static/imported-files/data_sheets/AD9755.pdf
(第三頁)
AC LINEARITY
Spurious-Free Dynamic Range to Nyquist
fDAC = 100 MSPS; fOUT = 1.00 MHz
0 dBFS Output 74 84 dBc
–6 dBFS Output 77 dBc
–12 dBFS Output 79 dBc
fDATA = 65 MSPS; fOUT = 1.1 MHz 2 79 dBc
fDATA = 65 MSPS; fOUT = 5.1 MHz 2 79 dBc
fDATA = 65 MSPS; fOUT = 10.1 MHz 2 78 dBc
fDATA = 65 MSPS; fOUT = 20.1 MHz 2 74 dBc
fDATA = 65 MSPS; fOUT = 30.1 MHz 2 70 dBc
fDAC = 160 MSPS; fOUT = 1.1 MHz 80 dBc
fDAC = 160 MSPS; fOUT = 11.1 MHz 77 dBc
fDAC與fOUT & fDATA分別是指那種特性呢??
我google過了~沒有解答 ~"~
感謝
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