Datasheet

AD9577 Data Sheet
Rev. 0 | Page 28 of 44
EXAMPLE APPLICATION
XTAL
OSC
REFCLK
MARGIN
REFSEL
CMOS
AD9577
DIVIDE
1 OR 2
VCO
2.15GHz
TO
2.55GHz
PFD/CP
THIRD
ORDER LPF
LDO
FEEDBACK
DIVIDER
f
PFD
PLL1
DIVIDERS
156.25MHz
LVPECL
DIVIDERS
125MHz
LVPECL
LDO
VCO
2.15GHz
TO
2.55GHz
PFD/CP
THIRD
ORDER LPF
PLL2
DIVIDERS
100MHz LVDS
DIVIDERS
33.33MHz
2 × CMOS
FEEDBACK
DIVIDER
SCL
SDA
I
2
C
CONTROL
SSCG
SPREAD SPECTRUM,
SDM
MAX_BW
2
5MHz XTAL
25MHz
CMOS
NOTE THAT ANY FREQUENCIES MAY BE PROGRAMMED.
09284-037
Figure 33. Example Application
Achievable application frequencies include (but are not limited to) those listed in Table 1 6.
Table 16. Typical Application Frequencies
Applications Frequency (MHz)
Ethernet 25, 62.5, 100, 125, 250
10G Ethernet 155.52, 156.25, 187.5, 161.1328125, 312.5, 622.08, 625
FB-DIMM 133.333, 166.666, 200
Fibre Channel 53.125, 106.25, 212.5, 318.75, 425
10G Fibre Channel 159.375
Inifiniband 125
SAS, SATA 37.5, 75, 100, 120, 150; the AD9577 also meets the −0.5% downspread requirement
Telecomm 19.44, 38.88, 77.76, 155.52, 311.04, 622.08, 627.32962
PCI Express 100, 125, 250; the AD9577 also meets the −0.5% downspread requirement
PCI, PCI-X 33.33, 66.66, 100, 133.33, 200
Video 13.5, 14.318, 17.7, 18, 27, 72, 74.25, 74.25/1.001, 148.5, 148.5/1.001
Wireless Infrastructure 61.44, 122.88, 368.64