ICS844246I Datasheet, PDF (3/16 Pages) Integrated Device Technology – FEMTOCLOCKS™ CRYSTAL-TO-LVDS FREQUENCY SYNTHESIZER W/INTEGRATED FANOUT BUFFER

ICS844246I
FEMTOCLOCKS™ CRYSTAL-TO-LVDS FREQUENCY SYNTHESIZER W/INTEGRATED FANOUT BUFFER PRELIMINARY
CRYSTAL FUNCTION TABLE
Inputs
XTAL (MHz) FB_SEL N_SEL1 N_SEL0
M
25
0
0
0
20
25
0
0
1
20
25
0
1
0
20
25
0
1
1
20
25
1
0
0
24
25
1
0
1
24
25
1
1
0
24
25
1
1
1
24
26.5625
0
1
0
20
26.5625
1
0
0
24
26.5625
1
0
1
24
26.5625
1
1
0
24
26.5625
1
1
1
24
30
0
0
0
20
30
0
0
1
20
30
0
1
0
20
30
0
1
1
20
31.25
0
0
0
20
31.25
0
0
1
20
31.25
0
1
0
20
31.25
0
1
1
20
33.3333
0
0
0
20
33.3333
0
0
1
20
33.3333
0
1
0
20
33.3333
0
1
1
20
Function
VCO (MHz)
N
500
2
500
4
500
5
500
8
600
3
600
4
600
6
600
12
531.25
5
637.5
3
637.5
4
637.5
6
637.5
12
600
2
600
4
600
5
600
8
625
2
625
4
625
5
625
8
666.6667
2
666.6667
4
666.6667
5
666.6667
8
Output (MHz)
250
125
100
62.5
200
150
100
50
106.25
212.5
159.375
106.25
53.125
300
150
120
75
312.5
156.25
125
78.125
333.3333
166.6667
133.3333
83.3333
IDT^™ / ICS^™ LVDS FREQUENCY SYNTHESIZER W/FANOUT BUFFER 3
ICS844246BGI REV. A NOVEMBER 14, 2007