ICS844003I-01 Datasheet, PDF (3/12 Pages) Integrated Circuit Systems – FEMTOCLOCKS™ CRYSTAL-TO-LVDS FREQUENCY SYNTHESIZER

Integrated
Circuit
Systems, Inc.
PRELIMINARY
ICS844003I-01
FEMTOCLOCKS™ CRYSTAL-TO-LVDS
FREQUENCY SYNTHESIZER
TABLE 3A. BANK A FREQUENCY TABLE
Crystal Frequency
(MHz)
25
25
20
22.5
25
24
20
19.44
19.44
15.625
18.75
19.44
18.75
15.625
Inputs
FB_DIV DIV_SELA1 DIV_SELA0
0
0
0
0
0
1
0
0
1
0
1
0
0
1
1
0
1
1
0
1
1
1
0
0
1
0
1
1
0
1
1
1
0
1
1
1
1
1
1
1
1
1
Feedback
Divider
25
25
25
25
25
25
25
32
32
32
32
32
32
32
Bank A
Output Divider
M/N
Multiplication
Factor
1
25
2
12.5
2
12.500
3
8.333
4
6.25
4
6.25
4
6.25
1
32
2
16
2
16
3
10.667
4
8
4
8
4
8
QA0/nQA0
Output
Frequency
(MHz)
625
312.5
250
187.5
156.25
150
125
622.08
311.04
250
200
155.52
150
125
TABLE 3B. BANK B FREQUENCY TABLE
Inputs
Crystal Frequency
(MHz)
25
20
25
24
20
25
25
24
20
19.44
15.625
19.44
18.75
15.625
15.625
19.44
18.75
15.625
FB_DIV
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
DIV_SELB1
0
0
0
0
0
1
1
1
1
0
0
0
0
0
1
1
1
1
DIV_SELB0
0
0
1
1
1
0
1
1
1
0
0
1
1
1
0
1
1
1
Feedback
Divider
25
25
25
25
25
25
25
25
25
32
32
32
32
32
32
32
32
32
Bank B
Output Divider
2
2
4
4
4
5
8
8
8
2
2
4
4
4
5
8
8
8
M/N
Multiplication
Factor
12.5
12.5
6.25
6.25
6.25
5
3.125
3.125
3.125
16
16
8
8
8
6.4
4
4
4
QB0/nQB0
Output
Frequency
(MHz)
312.5
250
156.25
150
125
125
78.125
75
62.5
311.04
250
155.52
150
125
100
77.76
75
62.5
844003AGI-01
www.icst.com/products/hiperclocks.html
3
REV. A MAY 31, 2005