ICS844256 Ver la hoja de datos (PDF) - Integrated Device Technology
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ICS844256
Integrated Device Technology
ICS844256 Datasheet PDF : 16 Pages
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ICS844256
FEMTOCLOCKS™ CRYSTAL-TO-LVDS FREQUENCY SYNTHESIZER W/INTEGRATED FANOUT BUFFER PRELIMINARY
CRYSTAL FUNCTION TABLE
Inputs
XTAL (MHz) FB_SEL N_SEL1 N_SEL0
M
20
0
0
0
25
20
0
0
1
25
20
0
1
0
25
20
0
1
1
25
21.25
0
1
1
25
24
0
0
0
25
24
0
0
1
25
24
0
1
0
25
24
0
1
1
25
25
0
0
0
25
25
0
0
1
25
25
0
1
0
25
25
0
1
1
25
25.5
0
1
0
25
15.625
1
1
1
32
18.5625
1
1
1
32
18.75
1
0
0
32
18.75
1
0
1
32
18.75
1
1
0
32
18.75
1
1
1
32
19.44
1
0
0
32
19.44
1
0
1
32
19.44
1
1
0
32
19.44
1
1
1
32
19.53125
1
0
0
32
19.53125
1
0
1
32
19.53125
1
1
0
32
19.53125
1
1
1
32
20
1
1
1
32
Function
VCO (MHz)
N
500
1
500
2
500
4
500
5
531.25
5
600
1
600
2
600
4
600
5
625
1
625
2
625
4
625
5
637.5
4
500
8
594
8
600
1
600
2
600
4
600
8
622.08
1
622.08
2
622.08
4
622.08
8
625
1
625
2
625
4
625
8
640
8
Output (MHz)
500
250
125
100
106.25
600
300
150
120
625
312.5
156.25
125
159.375
62.5
74.25
600
300
150
75
622.08
311.04
155.52
77.76
625
312.5
156.25
78.125
80
IDT™ / ICS™ LVDS FREQUENCY SYNTHESIZER W/FANOUT BUFFER 3
ICS844256BG REV. B NOVEMBER 19, 2007
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