CMS - The Hadron Calorimeter Project
Front-End Electronics
Useful
Application Note (pdf)
Jitter Measured
on HB Backplane
CCM provides
clock via TTCrx clock cleaned up with RoboClockII
|
SLOT |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
13 |
14 |
15 |
16 |
17 |
18 |
|
Clock Period
jitter RMS (ps) |
10 |
10 |
10 |
10 |
9 |
10 |
9 |
9 |
9 |
9 |
9 |
9 |
9 |
9 |
|
Cycle to cycle
jitter RMS (ps) |
14 |
14 |
14 |
13 |
13 |
14 |
13 |
13 |
12 |
12 |
12 |
12 |
13 |
13 |
CCM provides clock
via Oscillator cleaned up with RoboClockII
|
SLOT |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
13 |
14 |
15 |
16 |
17 |
18 |
|
Clock Period
jitter RMS (ps) |
10 |
9 |
10 |
10 |
9 |
9 |
9 |
9 |
10 |
9 |
9 |
9 |
9 |
9 |
|
Cycle to cycle
jitter RMS (ps) |
13 |
13 |
13 |
14 |
13 |
13 |
13 |
13 |
13 |
13 |
13 |
13 |
13 |
13 |
CCM provides
clock via TTCrx clock cleaned up with QPLL
|
SLOT |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
13 |
14 |
15 |
16 |
17 |
18 |
|
21 |
20 |
23 |
23 |
21 |
23 |
15 |
21 |
25 |
17 |
20 |
24 |
22 |
22 |
|
|
Cycle to cycle
jitter RMS (ps) |
39 |
36 |
43 |
43 |
40 |
43 |
26 |
36 |
47 |
30 |
36 |
44 |
40 |
42 |
Jitter Measured
on HO Backplane
CCM provides
clock via TTCrx clock cleaned up with RoboClockII
|
SLOT |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
13 |
14 |
15 |
16 |
17 |
18 |
|
Clock Period
jitter RMS (ps) |
9 |
9 |
9 |
9 |
9 |
9 |
8 |
9 |
8 |
9 |
9 |
8 |
9 |
9 |
|
Cycle to cycle
jitter RMS (ps) |
12 |
12 |
12 |
12 |
12 |
12 |
11 |
12 |
12 |
12 |
11 |
11 |
11 |
11 |
|
|
