| 전자부품 데이터시트 검색엔진 |
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AD6684 데이터시트(PDF) 19 Page - Analog Devices |
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AD6684 데이터시트(HTML) 19 Page - Analog Devices |
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19 / 107 page ![]() Data Sheet AD6684 Rev. 0 | Page 19 of 107 –95 –94 –93 –92 –91 –90 –89 –88 –87 –86 –85 –84 –83 –82 –81 –80 –79 –78 –77 –76 –75 ANALOG INPUT FREQUENCY (MHz) BUFFER CURRENT = 160µA BUFFER CURRENT = 200µA BUFFER CURRENT = 240µA BUFFER CURRENT = 280µA Figure 36. SFDR vs. Analog Input Frequency with Different Buffer Current Settings (First and Second Nyquist Zones) –85 –84 –83 –82 –81 –80 –79 –78 –77 –76 –75 –74 –73 –72 –71 –70 –69 –68 –67 –66 –65 ANALOG INPUT FREQUENCY (MHz) BUFFER CURRENT = 200µA BUFFER CURRENT = 240µA BUFFER CURRENT = 280µA BUFFER CURRENT = 320µA Figure 37. SFDR vs. Analog Input Frequency with Different Buffer Current Settings (Third Nyquist Zone) –80 –78 –76 –74 –72 –70 –68 –66 –64 –62 –60 –58 –56 –54 –52 –50 –48 –46 –44 –42 –40 ANALOG INPUT FREQUENCY (MHz) BUFFER CURRENT = 320µA BUFFER CURRENT = 360µA BUFFER CURRENT = 400µA BUFFER CURRENT = 440µA Figure 38. SFDR vs. Analog Input Frequency with Different Buffer Current Settings (Fourth Nyquist Zone) ANALOG INPUT FREQUENCY (MHz) 64 65 66 67 68 69 INPUT FULL SCALE = 2.16V INPUT FULL SCALE = 1.44V Figure 39. SNR vs. Analog Input Frequency with Different Analog Input Full Scales (First and Second Nyquist Zones) INPUT FULL SCALE = 2.16V INPUT FULL SCALE = 1.44V ANALOG INPUT FREQUENCY (MHz) 64.0 64.2 64.4 64.6 64.8 65.0 65.2 65.4 65.6 65.8 66.0 66.2 66.4 66.6 66.8 67.0 67.2 67.4 67.6 67.8 68.0 68.2 68.4 68.6 68.8 69.0 Figure 40. SNR vs. Analog Input Frequency with Different Analog Input Full Scales (Third Nyquist Zone) 62 63 64 65 66 67 68 INPUT FULL SCALE = 2.16V INPUT FULL SCALE = 1.44V ANALOG INPUT FREQUENCY (MHz) Figure 41. SNR vs. Analog Input Frequency with Different Analog Input Full Scales (Fourth Nyquist Zone) |
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