DS3105_09 Datasheet, PDF (36/120 Pages) Maxim Integrated Products – Line Card Timing IC

_____________________________________________________________________________________________ DS3105
Table 7-9. APLL Frequency to Output Frequencies (T0 APLL and T4 APLL)
APLL
FREQUENCY
312.500
311.040
274.944
250.000
178.944
160.000
148.224
131.072
122.880
104.000
100.992
98.816
98.304
APLL /
2
156.250
155.520
137.472
125.000
89.472
80.000
74.112
65.536
61.440
52.000
50.496
49.408
49.152
APLL /
4
—
77.760
68.376
62.500
44.736
40.000
37.056
32.768
30.720
26.000
25.248
24.704
24.576
APLL /
5
62.500
62.208
—
50.000
—
32.00
—
—
24.576
20.800
—
—
—
APLL /
6
—
51.840
45.824
—
29.824
—
24.704
—
20.480
—
16.832
—
16.384
APLL /
8
—
38.880
34.368
31.250
22.368
20.000
18.528
16.384
15.360
13.000
12.624
12.352
12.288
APLL /
10
31.250
31.104
—
25.000
—
16.000
—
—
12.288
10.400
—
—
—
APLL /
12
—
25.920
22.912
—
14.912
—
12.352
—
10.240
—
8.416
—
8.192
APLL /
16
—
19.440
17.184
—
11.184
10.000
9.264
8.192
7.680
6.500
6.312
6.176
6.144
Note: All frequencies in MHz. Common telecom, datacom, and synchronization frequencies are in bold type.
APLL /
20
—
15.552
—
12.500
—
8.000
—
—
6.144
5.200
—
—
—
APLL /
48
—
6.480
5.728
—
3.728
—
3.088
—
2.560
—
2.104
—
2.048
APLL /
64
—
4.860
4.296
—
2.796
2.500
2.316
2.048
1.920
—
1.578
1.544
1.536
Table 7-10. T0 APLL Frequency Configuration
T0 APLL
FREQUENCY (MHz)
311.04
311.04
98.304
131.072
148.224
98.816
100.992
250.000
T0 APLL DFS
FREQUENCY (MHz)
77.76
77.76
24.576
32.768
37.056
24.704
25.248
62.500
T0 APLL
FREQUENCY MODE
77.76MHz
77.76MHz
12 x E1
16 x E1
24 x DS1
16 x DS1
4 x 6312kHz
GbE  16
Table 7-11. T0 APLL2 Frequency Configuration
T0 APLL2
FREQUENCY (MHz)
312.500
T0 APLL2 DFS
FREQUENCY(MHz)
62.500
OUTPUT JITTER
(pk-pk, ns, typ)
< 0.5
T0FREQ[2:0] SETTING
IN T0CR1
000
001
010
011
100
101
110
111
OUTPUT JITTER
(pk-pk, ns, typ)
< 0.5
< 0.5
< 0.5
< 0.5
< 0.5
< 0.5
< 0.5
< 0.5
19-4628; Rev 3; 5/09
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