ICS950805 Datasheet, PDF (3/20 Pages) Integrated Circuit Systems – Frequency Generator with 200MHz Differential CPU Clocks

ICS950805
Truth Table
FS2
FS1
0
0
0
0
0
1
0
1
1
0
1
0
1
1
1
1
Mid
0
Mid
0
Mid
1
Mid
1
FS0
CPU
(MHz)
3V66
(1:0)
(MHz)
66Buff (2:0)
3V66 (4:2)
(MHz)
66MHz_IN/
3V66_5
PCI_F
PCI
(MHz)
REF0
(MHz)
USB/DOT
(MHz)
0
66.66 66.66
66.66
66.66
33.33
14.318
48.00
1
100.00 66.66
66.66
66.66
33.33
14.318
48.00
0
200.00 66.66
66.66
66.66
33.33
14.318
48.00
1
133.33 66.66
66.66
66.66
33.33
14.318
48.00
0
66.66 66.66 66MHz_IN
Input
66MHz_IN/2 14.318
48.00
1
100.00 66.66 66MHz_IN
Input
66MHz_IN/2 14.318
48.00
0
200.00 66.66 66MHz_IN
Input
66MHz_IN/2 14.318
48.00
1
133.33 66.66 66MHz_IN
Input
66MHz_IN/2 14.318
48.00
0
Tristate Tristate
Tristate
Tristate
Tristate
Tristate
Tristate
1
TCLK/2 TCLK/4
TCLK/4
TCLK/4
TCLK/8
TCLK
TCLK/2
0 Reserved Reserved Reserved
Reserved
Reserved Reserved Reserved
1 Reserved Reserved Reserved
Reserved
Reserved Reserved Reserved
Maximum Allowed Current
Condition
Max 3.3V supply consumption
Max discrete cap loads,
Vdd = 3.465V
All static inputs = Vdd or GND
Powerdown Mode
(PWRDWN# = 0)
40mA
Full Active
360mA
Host Swing Select Functions
MULTISEL0
Board Target
Trace/Term Z
0
50 ohms
1
50 ohms
Reference R,
Iref =
V_DD/(3*Rr)
Rr = 221 1%,
Iref = 5.00mA
Rr = 475 1%,
Iref = 2.32mA
Output
Current
Voh @ Z
Ioh = 4* I REF 1.0V @ 50
Ioh = 6* I REF 0.7V @ 50
0649H—02/25/05
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