ICS932SQ420DGLF Datasheet, PDF (14/27 Pages) Integrated Device Technology – PCIE GEN 2/3 & QPI CLOCK FOR ROMLEY-BASED SERVERS

932SQ420D
PCIE GEN 2/3 & QPI CLOCK FOR ROMLEY-BASED SERVERS
Clock AC Tolerances
PPM tolerance
Cycle to Cycle Jitter
S prea d
CPU
100
50
-0. 50%
SRC,
NS_ SAS ,
NS_SR C
100
50
-0.5 0%
PC I
100
500
-0 .50%
DOT96
100
250
0
48 MHz
100
350
0.0 0%
REF
1 00
1 000
0.00 %
ppm
ps
%
Clock Periods – Outputs with Spread Spectrum Disabled
SSC ON
CPU
SRC ,
NS_SAS,
N S_S RC
PCI
DOT96
4 8MHz
REF
C ente r
Freq.
MHz
100. 00000
133. 33333
100. 00000
33.3 3333
96.0 0000
48.0 0000
14.3 1818
1 Clock
-c2c jitter
A bsPer
M in
9.9 4900
7.4 4925
9.9 4900
29.4 9700
10.1 6563
20.4 8125
69.7 8429
1 us
-SSC
Short-Term
Average
M in
Measurement Window
0.1s
0.1 s
0.1 s
- ppm
+ ppm
Long-Term 0 ppm Period Long-Term
Ave rage
Nominal
Average
Min
9. 99900
10.00 000
Ma x
10.00 100
7. 49925
7.50 000
7.500 75
9. 99900
10.00 000
10.00 100
29 .9970 0
10 .4156 3
20 .8312 5
69 .8342 9
30.00 000
10.41 667
20.83 333
69.84 128
30.00 300
10.41 771
20.83 542
69.84 826
1us
+SSC
S hort-Te rm
Average
Max
1 Clock
+c2c jitter Units Notes
AbsPer
Max
10.05100 ns 1,2
7.55075 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
C ente r
Freq.
MHz
99 .75
13 3.00
33 .25
99 .75
1 Clock
-c2c jitter
A bsPer
M in
9.9 4906
7.4 4930
29.4 9718
9.9 4906
1 us
-SSC
Short-Term
Average
M in
9.99 906
7.49 930
29.99 718
9.99 906
Measurement Window
0.1s
0.1 s
0.1 s
- ppm
+ ppm
Long-Term 0 ppm Period Long-Term
Ave rage
Nominal
Average
Min
10 .0240 6
10.02 506
Ma x
10.02 607
7. 51805
7.51 880
7.519 55
30.07218 30.07519
30.07 820
10.02406 10.02506
10.02 607
1us
+SSC
S hort-Te rm
Average
Max
1 0.051 07
7.538 30
3 0.153 20
1 0.051 07
1 Clock
+c2c jitter Units Notes
AbsPer
Max
10.10107 ns 1,2
7.58830 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.}
IDT® PCIE GEN 2/3 & QPI CLOCK FOR ROMLEY-BASED SERVERS
14
932SQ420D
REV H 042012