932SQL450 Datasheet, PDF (9/23 Pages) Integrated Device Technology – Integrated 85 ohm differential terminations

932SQL450 DATASHEET
Clock AC Tolerances
CPU, SRC
PPM tolerance 100
Cycle to Cycle Jitter 50
Spread -0.50%
NS_SAS,
NS_SRC
100
50
0.00%
PCI
100
500
-0.50%
DOT96
100
250
0
48MHz
100
350
0.00%
REF
100
1000
0.00%
ppm
ps
%
Clock Periods–Outputs with Spread Spectrum Disabled
SSC OFF
CPU
SRC,
NS_SAS,
NS_SRC
PCI
DOT96
48MHz
REF
Center
Freq.
MHz
100.000
100.000
33.333
96.000
48.000
14.318
Measurement Window
1 Clock
1us
0.1s
0.1s
0.1s
-c2c jitter
-SSC
- ppm
AbsPer ^{Short-Term Long-Term}
Min
Average Average
Min
Min
0 ppm
Period
Nominal
+ ppm
Long-Term
Average
Max
9.94900
9.99900 10.00000 10.00100
9.94900
9.99900 10.00000 10.00100
29.49700
10.16563
20.48125
69.78429
29.99700
10.41563
20.83125
69.83429
30.00000
10.41667
20.83333
69.84128
30.00300
10.41771
20.83542
69.84826
1us
+SSC
Short-Term
Average
Max
1 Clock
+c2c jitter Units Notes
AbsPer
Max
10.05100 ns 1,2
10.05100 ns
1,2
30.50300 ns 1,2
10.66771 ns 1,2
21.18542 ns 1,2
69.89826 ns 1,2
Clock Periods–Outputs with Spread Spectrum Enabled
SSC ON
CPU
PCI
SRC
Center
Freq.
MHz
99.75
33.25
99.75
1 Clock
-c2c jitter
AbsPer
Min
9.94906
29.49718
9.94906
1us
-SSC
Short-Term
Average
Min
9.99906
29.99718
9.99906
Measurement Window
0.1s
0.1s
0.1s
- ppm
Long-Term
Average
Min
0 ppm
Period
Nominal
+ ppm
Long-Term
Average
Max
10.02406 10.02506 10.02607
30.07218 30.07519 30.07820
10.02406 10.02506 10.02607
1us
+SSC
Short-Term
Average
Max
10.05107
30.15320
10.05107
1 Clock
+c2c jitter Units Notes
AbsPer
Max
10.10107 ns 1,2
30.65320 ns 1,2
10.10107 ns 1,2
1_{Guaranteed by design and characterization, not 100% tested in production.}
2 _{All Long Term Accuracy specifications are guaranteed with the assumption that the REF output is tuned to exactly 14.31818MHz.}
REVISION B 03/06/15
9
LOW-POWER CK420BQ DERIVATIVE FOR PCIE COMMON CLOCK ARCHITECTURES