| 전자부품 데이터시트 검색엔진 |
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AD9161BBCZ 데이터시트(PDF) 67 Page - Analog Devices |
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AD9161BBCZ 데이터시트(HTML) 67 Page - Analog Devices |
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67 / 144 page ![]() Data Sheet AD9161/AD9162 Rev. D | Page 67 of 144 90 20 0 –0.6 –0.5 –0.4 –0.3 –0.2 –0.1 30 40 50 60 70 80 40 41 42 43 44 45 BANDWIDTH (% fDATA) PASS-BAND RIPPLE IMAGE REJECTION Figure 163. Interpolation Filter Performance Beyond Specified Bandwidth for the 80% Filters Figure 163 shows the performance of the interpolation filters beyond 0.4 × fDATA. The ripple increases much slower than the image rejection decreases. This means that if the application can tolerate degraded image rejection from the interpolation filters, more bandwidth can be used. Most of the filters are specified to 0.45 × fDATA (with pass band). Figure 164 to Figure 171 show the filter response for each of the interpolator filters on the AD9161/AD9162. NORMALIZED FREQUENCY (Rad/Sample) 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 –140 –120 –100 –80 –60 –40 –20 0 20 Figure 164. First 2× Half-Band 80% Filter Response NORMALIZED FREQUENCY (Rad/Sample) 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 –140 –120 –100 –80 –60 –40 –20 0 20 Figure 165. First 2× Half-Band 90% Filter Response NORMALIZED FREQUENCY (Rad/Sample) 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 –160 –140 –120 –100 –80 –60 –40 –20 0 20 Figure 166. 3× Third-Band 80% Filter Response NORMALIZED FREQUENCY (Rad/Sample) 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 –160 –140 –120 –100 –80 –60 –40 –20 0 20 Figure 167. 3× Third-Band 90% Filter Response |
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