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AD9522-4 Arkusz danych(PDF) 10 Page - Analog Devices |
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AD9522-4 Arkusz danych(HTML) 10 Page - Analog Devices |
10 / 84 page AD9522-4 Rev. 0 | Page 10 of 84 CLOCK OUTPUT ABSOLUTE PHASE NOISE (INTERNAL VCO USED) Table 7. Parameter Min Typ Max Unit Test Conditions/Comments LVDS ABSOLUTE PHASE NOISE Internal VCO; VCO divider = 3; LVDS output and for loop bandwidths < 1 kHz VCO = 1.8 GHz; Output = 600 MHz @ 1 kHz Offset −64 dBc/Hz @ 10 kHz Offset −93 dBc/Hz @ 100 kHz Offset −116 dBc/Hz @ 1 MHz Offset −135 dBc/Hz @ 10 MHz Offset −148 dBc/Hz @ 40 MHz Offset −151 dBc/Hz VCO = 1.6 GHz; Output = 533 MHz @ 1 kHz Offset −66 dBc/Hz @ 10 kHz Offset −96 dBc/Hz @ 100 kHz Offset −120 dBc/Hz @ 1 MHz Offset −137 dBc/Hz @ 10 MHz Offset −149 dBc/Hz @ 40 MHz Offset −151 dBc/Hz VCO = 1.4 GHz; Output = 467 MHz @ 1 kHz Offset −71 dBc/Hz @ 10 kHz Offset −101 dBc/Hz @ 100 kHz Offset −124 dBc/Hz @ 1 MHz Offset −140 dBc/Hz @ 10 MHz Offset −150 dBc/Hz @ 40 MHz Offset −152 dBc/Hz CLOCK OUTPUT ABSOLUTE TIME JITTER (CLOCK GENERATION USING INTERNAL VCO) Table 8. Parameter Min Typ Max Unit Test Conditions/Comments LVDS OUTPUT ABSOLUTE TIME JITTER Application example based on a typical setup where the reference source is clean, so a wider PLL loop bandwidth is used; reference = 15.36 MHz; R DIV = 1 VCO = 1475 MHz; LVDS = 245.76 MHz; PLL LBW = 55 kHz 127 fs rms Integration BW = 200 kHz to 10 MHz 285 fs rms Integration BW = 12 kHz to 20 MHz VCO = 1475 MHz; LVDS = 122.88 MHz; PLL LBW = 55 kHz 145 fs rms Integration BW = 200 kHz to 10 MHz 299 fs rms Integration BW = 12 kHz to 20 MHz VCO = 1475 MHz; LVDS = 61.44 MHz; PLL LBW = 55 kHz 194 fs rms Integration BW = 200 kHz to 10 MHz 351 fs rms Integration BW = 12 kHz to 20 MHz CLOCK OUTPUT ABSOLUTE TIME JITTER (CLOCK CLEANUP USING INTERNAL VCO) Table 9. Parameter Min Typ Max Unit Test Conditions/Comments LVDS OUTPUT ABSOLUTE TIME JITTER Application example based on a typical setup where the reference source is jittery, so a narrower PLL loop bandwidth is used; reference = 19.44 MHz; R DIV = 162 VCO = 1400 MHz; LVDS = 155.52 MHz; PLL LBW = 1.8 kHz 372 fs rms Integration BW = 12 kHz to 20 MHz VCO = 1475 MHz; LVDS = 122.88 MHz; PLL LBW = 1.8 kHz 418 fs rms Integration BW = 12 kHz to 20 MHz |
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Podobny opis - AD9522-4 |
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