Datasheet

AD9577 Data Sheet
Rev. 0 | Page 20 of 44
PLL2 PHASE NOISE PERFORMANCE
–
110
–160
–150
–140
–130
–120
1k 10k 100k 1M 100M10M
PHASE NOISE (dBc/Hz)
FREQUENCY (Hz)
09284-012
Figure 12. Phase Noise, PLL2, OUT2 LVPECL, 100 MHz, Integer-N Mode
(f
XTAL
= 25 MHz, Nb = 100, V2 = 5, D2 = 5)
–
100
–160
–150
–140
–130
–120
–110
1k 10k 100k 1M 100M10M
PHASE NOISE (dBc/Hz)
FREQUENCY (Hz)
09284-013
Figure 13. Phase Noise, PLL2, OUT2 LVPECL, 156.25 MHz, Integer-N Mode
(f
XTAL
= 25 MHz, Nb = 100, V2 = 4, D2 = 4)
–
100
–160
–150
–140
–130
–120
–110
1k 10k 100k 1M 100M10M
PHASE NOISE (dBc/Hz)
FREQUENCY (Hz)
09284-014
Figure 14. Phase Noise, PLL2, OUT2 LVPECL, 155.52 MHz, Fractional-N Mode
(f
XTAL
= 25 MHz, Nb = 99, FRAC = 333, MOD = 625, V2 = 2, D2 = 8), Spurs
Disabled
–
110
–160
–150
–140
–130
–120
1k 10k 100k 1M 100M10M
PHASE NOISE (dBc/Hz)
FREQUENCY (Hz)
09284-015
Figure 15. Phase Noise, PLL2, OUT2 LVPECL, 106.25 MHz, Integer-N Mode
(f
XTAL
= 25 MHz, Nb = 102, V2 = 4, D2 = 6)
–
90
–100
–160
–150
–140
–130
–120
–110
1k 10k 100k 1M 100M10M
PHASE NOISE (dBc/Hz)
FREQUENCY (Hz)
09284-016
Figure 16. Phase Noise, PLL2, OUT2 LVPECL, 625 MHz, Integer-N Mode
(f
XTAL
= 25 MHz, Nb = 100, V2 = 2, D2 = 2)
–
90
–100
–160
–150
–140
–130
–120
–110
1k 10k 100k 1M 100M10M
PHASE NOISE (dBc/Hz)
FREQUENCY (Hz)
09284-017
Figure 17. Phase Noise, PLL2, OUT2 LVPECL, 622.08 MHz, Fractional-N Mode
(f
XTAL
= 25 MHz, Nb = 99, FRAC = 333, MOD = 625, V2 = 2, D2 = 2), Spurs
Disabled