PM7344 S/UNI-MPH
DATA SHEET
PMC-950449
ISSUE 6
MULTI-PHY USER NETWORK INTERFACE
Figure 11
- DJAT Minimum Jitter Tolerance vs XCLK Accuracy (T1 Case)
40
36
34
35
DJAT Minimum
Jitter Tolerance
UI pp
30
29
Max frequency
offset (PLL Ref
to XCLK)
25
100
200
0
250
32
300
354
100
Hz
± ppm
XCLK Accuracy
Figure 12
- DJAT Minimum Jitter Tolerance vs XCLK Accuracy (E1 Case)
45
42.4
40
39
DJAT Minimum
Jitter Tolerance
UI pp
35
34.9
Max frequency
offset (PLL Ref
to XCLK)
30
100
200
49
300 308
100
Hz
0
± ppm
XCLK Accuracy
Jitter Transfer
The output jitter for jitter frequencies from 0 to 6.6 Hz (for T1 interfaces) or from
0 to 8.8 Hz (for E1 interfaces) is no more than 0.1 dB greater than the input jitter,
excluding the 0.042 UI residual jitter. Jitter frequencies above 6.6/8.8 Hz are
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
53
PMC [ PMC-SIERRA, INC ]
