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AD9993BBCZ 数据表(PDF) 13 Page - Analog Devices |
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AD9993BBCZ 数据表(HTML) 13 Page - Analog Devices |
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13 / 56 page ![]() Data Sheet AD9993 Rev. A | Page 13 of 56 TRANSMITTER DAC PERFORMANCE fDAC = 500 MHz, unless otherwise specified. Figure 12. 5 MHz Bandwidth 256-QAM Adjacent Channel Power Figure 13. SFDR, 2nd and 3rd Harmonics vs. fOUT, Maximum IOUTFS (DAC Gain) Figure 14. SFDR at Three Temperatures vs. fOUT Figure 15. 1st Nyquist Zone Output Spectrum, fOUT = 48 MHz Figure 16. SFDR at Three DAC Sampling Frequencies (fDAC) vs. fOUT Figure 17. IMD3 vs. fOUT, Both DACs –76.4dBc –76.2dBc –75.5dBc –75.9dBc 11.2dBm –75.9dBc –76.3dBc –76.2dBc –75.9dBc –30 –40 –50 –60 –70 –80 –90 –100 –110 OFFSET FREQ 3.375MHz 6.375MHz 12MHz 18MHz 24MHz INTEG BW 750kHz 5.25MHz 6MHz 6MHz 6MHz dBc –80.81 –75.93 –75.49 –76.23 –76.42 dBm –92.04 –87.16 –86.72 –87.46 –87.65 dBc –29.72 –75.95 –76.30 –76.17 –75.93 UPPER LOWER dBm –40.95 –87.18 –87.53 –87.41 –87.16 Filter OFF OFF OFF OFF OFF CENTER 50MHz #RES BW 30kHz SPAN 54MHz SWEEP 175.1ms #VBW 300kHz 0 –40 –50 –60 –70 –80 –90 –100 50 100 150 fOUT (MHz) 200 250 SECOND HARMONIC (dBc) THIRD HARMONIC (dBc) SFDR (dBc) 0 –40 –50 –45 –55 –60 –65 –75 –70 –80 50 100 150 fOUT (MHz) 200 250 DAC: b, TEMP: +25°C DAC: b, TEMP: +85°C DAC: b, TEMP: –40°C DAC B, +25°C DAC B, +85°C DAC B, –40°C MARKER 1R 1 2R 2 START 1MHz #RES BW 1kHz STOP 250MHz SWEEP 300.2s (601pts) VBW 1kHz TRACE 1 1 1 1 TYPE FREQ FREQ FREQ FREQ XAXIS 47.9MHz 48.0MHz 47.9MHz 96.4MHz AMPLITUDE –0.56dBm –83.28dB –0.56dBm –71.74dB 2R 2 1 0 –40 –50 –45 –55 –60 –65 –75 –70 –80 50 100 150 fOUT (MHz) 200 250 fDAC = 250MHz, DAC B fDAC = 350MHz, DAC B fDAC = 500MHz, DAC B 0 –45 –85 –80 –50 –55 –60 –65 –75 –70 –90 50 100 150 fOUT (MHz) 200 250 DACA DACB |
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