CY28325-3
Table 1. Frequency Selection Table (continued)
Input Conditions
Output Frequency
PLL Gear
Constants
(G)
FS4
FS3
FS2
FS1
FS0
SEL4
SEL3
SEL2
SEL1
SEL0
CPU
185.0
190.0
100.9
133.9
200.5
166.8
100.0
133.3
200.0
166.7
AGP
74.0
76.0
67.3
67.0
66.8
66.7
66.6
66.6
66.6
66.7
PCI
37.0
38.0
33.6
33.5
33.4
33.3
33.3
33.3
33.3
33.3
APIC
18.5
19.0
16.8
16.7
16.7
16.7
16.7
16.7
16.7
16.7
1
1
1
1
1
1
1
1
1
1
0
0
1
1
1
1
1
1
1
1
1
1
0
0
0
0
1
1
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
0
1
48.00741
48.00741
48.00741
48.00741
48.00741
48.00741
48.00741
48.00741
48.00741
48.00741
Swing Select Functions
Board Target
Trace/Term Z
Reference R, IREF =
Output
Current
MultSEL1
MultSEL0
VOH @ Z
VDD/(3*Rr)
0
0
50:
Rr = 221 1%,
IREF = 5.00 mA
I
OH = 4*Iref
1.0V @ 50
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
60:
Rr = 221 1%,
IREF = 5.00
IOH = 4*Iref
IOH = 5*Iref
IOH = 5*Iref
IOH = 6*Iref
IOH = 6*Iref
IOH = 7*Iref
IOH = 7*Iref
IOH = 4*Iref
IOH = 4*Iref
IOH = 5*Iref
IOH = 5*Iref
IOH = 6*Iref
IOH = 6*Iref
IOH = 7*Iref
IOH = 7*Iref
1.2V @ 60
1.25V @ 50
1.5V @ 60
1.5V @ 50
1.8V @ 60
1.75V @ 50
2.1V @ 60
0.47V @ 50
0.56V @ 60
0.58V @ 50
0.7V @ 60
0.7V @ 50
0.84V @ 60
0.81V @ 50
0.97V @ 60
50:
Rr = 221 1%,
IREF = 5.00 mA
60:
Rr = 221 1%,
IREF = 5.00 mA
50:
Rr = 221 1%,
IREF = 5.00 mA
60:
Rr = 221 1%,
IREF = 5.00 mA
50:
Rr = 221 1%,
IREF = 5.00 mA
60:
Rr = 221 1%,
IREF = 5.00 mA
50:
Rr = 475 1%,
IREF = 2.32 mA
60:
Rr = 475 1%,
IREF = 2.32 mA
50:
Rr = 475 1%,
IREF = 2.32 mA
60:
Rr = 475 1%,
IREF = 2.32 mA
50:
Rr = 475 1%,
IREF = 2.32 mA
60:
Rr = 475 1%,
IREF = 2.32 mA
50 Ohm
60 Ohm
Rr = 475 1%,
IREF = 2.32mA
Rr = 475 1%,
IREF = 2.32mA
Rev 1.0,November 21, 2006
Page 4 of 18
SPECTRALINEAR [ SPECTRALINEAR INC ]
