XRT8000_06 Datasheet, PDF (17/24 Pages) Exar Corporation – Clock Synchronizer/Adapter for Communications

XRT8000
CONFIGURATION DIAGRAMS
The following six figures depict all of the configuration
possibilities for the XRT8000. The table in the left (F_IN)
lists different possibilities for reference clock input, while
the table in the right lists all the possibilities for two output
clocks.
Output Frequencies (kHz)
k _{(k x 56) (k x 56)/8 (k x 64) (k x 64)/8}
n x T1
n ^oxrE1
(1<=n<=16)
XRT8000
F_IN
1 56
7
64
8
2 112
14
128
16
3 168
21
192
24
4 224
28
256
32
5 280
35
320
40
6 336
42
384
48
Reference Freq. (kHz)
n
n x T1
n x E1
1
1,544
2,048
CLK1
7 392
49
448
56
8 448
56
512
64
k x DS0
9 504
63
576
72
(1<=k<=32)
10 560
70
640
80
11 616
77
704
88
2
3,088
3
4,632
4,096
6,144
CLK2
12 672
84
768
96
13 728
91
832
104
14 784
98
896
112
4
6,176
5
7,720
8,192
10,240
SYNC
8 kHz
15 840
16 896
17 952
105
960
120
112
1,024
128
119
1,088
136
6
9,264
12,288
18 1,008
126
1,152
144
7
10,808
14,336
19 1,064
133
1,216
152
20 1,120
140
1,280
160
8
12,352
16,384
21 1,176
147
1,344
168
9
13,896
18,432
22 1,232
154
1,408
176
23 1,288
161
1,472
184
10
15,440
20,480
24 1,344
168
1,536
192
11
16,984
12
18,528
22,528
24,576
25 1,400
175
1,600
200
26 1,456
182
1,664
208
27 1,512
189
1,728
216
13
20,072
14
21,616
26,624
28,672
28 1,568
196
1,792
224
29 1,624
203
1,856
232
30 1,680
210
1,920
240
15
23,160
30,720
31 1,736
217
1,984
248
16
24,704
32,768
32 1,792
224
2,048
256
Figure 6. Master Forward Mode
Rev. 1.11
17