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AD9912A/PCBZ 数据表(PDF) 12 Page - Analog Devices |
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AD9912A/PCBZ 数据表(HTML) 12 Page - Analog Devices |
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12 / 40 page ![]() AD9912 Rev. F | Page 12 of 40 19.85 19.95 20.05 20.15 20.25 20.35 FREQUENCY (MHz) 10 0 –10 –20 –30 –40 –50 –60 –70 –80 –90 –100 –110 20.1MHz –95dBc 500kHz 300Hz 1kHz CARRIER: SFDR: FREQ. SPAN: RESOLUTION BW: VIDEO BW: Figure 9. Narrow-Band SFDR at 20.1 MHz, SYSCLK = 1 GHz (SYSCLK PLL Bypassed) 200.85 200.95 201.05 201.15 201.25 201.35 FREQUENCY (MHz) 10 0 –10 –20 –30 –40 –50 –60 –70 –80 –90 –100 –110 201.1MHz –91dBc 500kHz 300Hz 1kHz CARRIER: SFDR: FREQ. SPAN: RESOLUTION BW: VIDEO BW: Figure 10. Narrow-Band SFDR at 201.1 MHz, SYSCLK = 1 GHz Wenzel Oscillator (SYSCLK PLL Bypassed) 398.45 398.55 398.65 398.75 398.85 398.95 FREQUENCY (MHz) 10 0 –10 –20 –30 –40 –50 –60 –70 –80 –90 –100 –110 398.7MHz –86dBc 500kHz 300Hz 1kHz CARRIER: SFDR: FREQ. SPAN: RESOLUTION BW: VIDEO BW: Figure 11. Narrow-Band SFDR at 398.7 MHz, SYSCLK = 1 GHz Wenzel Oscillator (SYSCLK PLL Bypassed) 100 1k 10k 100k 1M 10M 100M FREQUENCY OFFSET (Hz) –80 –90 –100 –110 –120 –130 –140 –150 –160 399MHz 99MHz RMS JITTER (100Hz TO 40MHz): 99MHz: 399MHz: 413fs 222fs Figure 12. Absolute Phase Noise Using HSTL Driver, SYSCLK = 1 GHz Wenzel Oscillator (SYSCLK PLL Bypassed) 10 100 1k 10k 100k 1M 10M 100M FREQUENCY OFFSET (Hz) –80 –90 –100 –110 –120 –130 –140 –150 –160 399MHz 99MHz RMS JITTER (12kHz TO 20MHz): 99MHz: 399MHz: 0.98ps 0.99ps Figure 13. Absolute Phase Noise Using HSTL Driver, SYSCLK = 1 GHz (SYSCLK PLL Driven by Rohde & Schwarz SMA100 Signal Generator at 83.33 MHz ) 10 100 1k 10k 100k 1M 10M 100M FREQUENCY OFFSET (Hz) –80 –90 –100 –110 –120 –130 –140 –150 –160 399MHz 99MHz RMS JITTER (12kHz TO 20MHz): 99MHz: 399MHz: 1.41ps 1.46ps Figure 14. Absolute Phase Noise Using HSTL Driver, SYSCLK = 1 GHz (SYSCLK PLL Driven by Rohde & Schwarz SMA100 Signal Generator at 25 MHz ) |
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