ICS844256D 데이터 시트보기 (PDF) - Integrated Device Technology
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ICS844256D
Integrated Device Technology
ICS844256D Datasheet PDF : 18 Pages
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ICS844256D Data Sheet
FEMTOCLOCK® CRYSTAL-TO-LVDS FREQUENCY SYNTHESIZER W/INTEGRATED FANOUT BUFFER
Function Tables
Table 3. Example Frequency Function Table
Inputs
XTAL (MHz) FB_SEL N_SEL1 N_SEL0
20
0
0
0
20
0
0
1
20
0
1
0
20
0
1
1
21.25
0
1
1
24
0
0
0
24
0
0
1
24
0
1
0
24
0
1
1
25
0
0
0
25
0
0
1
25
0
1
0
25
0
1
1
25.5
0
1
0
15.625
1
1
1
18.5625
1
1
1
18.75
1
0
0
18.75
1
0
1
18.75
1
1
0
18.75
1
1
1
19.44
1
0
0
19.44
1
0
1
19.44
1
1
0
19.44
1
1
1
19.53125
1
0
0
19.53125
1
0
1
19.53125
1
1
0
19.53125
1
1
1
20
1
1
1
M Divider Value
25
25
25
25
25
25
25
25
25
25
25
25
25
25
32
32
32
32
32
32
32
32
32
32
32
32
32
32
32
Function
VCO (MHz) N Divider Value
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
ICS844256DG REVISION A AUGUST 5, 2010
3
©2010 Integrated Device Technology, Inc.
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