ICS932S421B Datasheet, PDF (11/23 Pages) Integrated Device Technology – PCIe Gen2 and QPI Clock for Intel-Based Servers

ICS932S421B
PCIe Gen2 and QPI Clock for Intel-Based Servers
Differential Clock AC Tolerances
CPU
SRC
PPM tolerance 100
100
Cycle to Cycle Jitter 50
125
Spread -0.50%
-0.50%
DOT96
100
250
0
BMC133
100
125
-0.50%
ppm
ps
%
Clock Periods - Differential Outputs with Spread Spectrum Disabled
Measurement Window
SSC ON
Center
Freq.
MHz
1 Clock
-c2c jitter
AbsPer
Min
1us
-SSC
Short-Term
Average
Min
0.1s
- ppm
Long-Term
Average
Min
0.1s
0 ppm
Period
Nominal
0.1s
+ ppm
Long-Term
Average
Max
100.00 9.94900
9.99900 10.00000 10.00100
133.33 7.44925
7.49925
7.50000
7.50075
CPU
166.67
200.00
5.94940
4.94950
5.99940
4.99950
6.00000
5.00000
6.00060
5.00050
266.67 3.69962
3.74962
3.75000
3.75037
333.33 2.94970
2.99970
3.00000
3.00030
400.00 2.44975
2.49975
2.50000
2.50025
SRC
100.00 9.87400
9.99900 10.00000 10.00100
1us
+SSC
Short-Term
Average
Max
1 Clock
+c2c jitter Units Notes
AbsPer
Max
10.05100 ns 1,2
7.55075 ns 1,2
6.05060 ns 1,2
5.05050 ns 1,2
3.80037 ns 1,2
3.05030 ns 1,2
2.55025 ns 1,2
10.12600 ns 1,2
Clock Periods - Differential Outputs with Spread Spectrum Enabled
Measurement Window
SSC ON
Center
Freq.
MHz
1 Clock
-c2c jitter
AbsPer
Min
1us
-SSC
Short-Term
Average
Min
0.1s
- ppm
Long-Term
Average
Min
0.1s
0 ppm
Period
Nominal
0.1s
+ ppm
Long-Term
Average
Max
99.75 9.94906 9.99906 10.02406 10.02506 10.02607
133.00 7.44930 7.49930 7.51805
7.51880
7.51955
CPU
166.25
199.50
5.94944
4.94953
5.99944
4.99953
6.01444
5.01203
6.01504
5.01253
6.01564
5.01303
266.00 3.69965 3.74965 3.75902
3.75940
3.75977
332.50 2.94972 2.99972 3.00722
3.00752
3.00782
399.00 2.44977 2.49977 2.50602
2.50627
2.50652
SRC
99.75 9.87406 9.99906 10.02406 10.02506 10.02607
1us
+SSC
Short-Term
Average
Max
10.05107
7.53830
6.03064
5.02553
3.76915
3.01532
2.51277
10.05107
1 Clock
+c2c jitter Units Notes
AbsPer
Max
10.10107 ns 1,2
7.58830 ns 1,2
6.08064 ns 1,2
5.07553 ns 1,2
3.81915 ns 1,2
3.06532 ns 1,2
2.56277 ns 1,2
10.17607 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 crystal input is tuned to exactly 14.31818MHz.}
IDT^TM PCIe Gen2 and QPI Clock for Intel-Based Servers
11
1340G—01/26/10