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ICS9220 Datasheet, PDF (7/17 Pages) Integrated Device Technology – Programmable RambusTM XDRTM Clock Generator
ICS9220
PLL Multiplier
Table 2 shows the frequency multipliers in the PLL, selectable by programming the MULT0, MULT1 and MULT2 bits
in the SMBus Multiplier Control register. Power up default is 4.
Table 2. PLL Multiplier Programming Selection
OUTPUT PostDiv
B5b7
VCO
M
N
Byte 5
B5b(3:0) B6b(5:0) Hex
300.00000 4 1200.0000 6
18
84
325.00000 4 1300.0000 4
13
82
350.00000 4 1400.0000 6
21
84
366.66667 4 1466.6667 6
22
84
375.00000 4 1500.0000 4
15
82
383.33333 4 1533.3333 6
23
84
400.00000 4 1600.0000 6
24
84
416.66667 4 1666.6667 6
25
84
425.00000 2
850.0000
4
17
02
433.33333 2
866.6667
6
26
04
450.00000 2
900.0000
6
27
04
466.66667 2
933.3333
6
28
04
475.00000 2
950.0000
4
19
02
483.33333 2
966.6667
6
29
04
500.00000 2 1000.0000 6
30
04
516.66667 2 1033.3333 6
31
04
533.33333 2 1066.6667 6
32
04
550.00000 2 1100.0000 6
33
04
566.66667 2 1133.3333 6
34
04
583.33333 2 1166.6667 6
35
04
600.00000 2 1200.0000 6
36
04
616.66667 2 1233.3333 6
37
04
633.33333 2 1266.6667 6
38
04
650.00000 2 1300.0000 6
39
04
666.66667 2 1333.3333 6
40
04
NOTE: All output values based on 100.000000MHz input clock
Byte 6
Hex
10
0B
13
14
0D
15
16
17
0F
18
19
1A
11
1B
1C
1D
1E
1F
20
21
22
23
24
25
26
ASIC Multiplier
4
6
8
1200.00 1800.00 2400.00
1300.00 1950.00 2600.00
1400.00 2100.00 2800.00
1466.67 2200.00 2933.33
1500.00 2250.00 3000.00
1533.33 2300.00 3066.67
1600.00 2400.00 3200.00
1666.67 2500.00 3333.33
1700.00 2550.00 3400.00
1733.33 2600.00 3466.67
1800.00 2700.00 3600.00
1866.67 2800.00 3733.33
1900.00 2850.00 3800.00
1933.33 2900.00 3866.67
2000.00 3000.00 4000.00
2066.67 3100.00 4133.33
2133.33 3200.00 4266.67
2200.00 3300.00 4400.00
2266.67 3400.00 4533.33
2333.33 3500.00 4666.67
2400.00 3600.00 4800.00
2466.67 3700.00 4933.33
2533.33 3800.00 5066.67
2600.00 3900.00 5200.00
2666.67 4000.00 5333.33
1227G—11/05/07
7