
IDTTM/ICSTM Four Output Differential Buffer for PCIe Gen 2 with Spread
1626
09/17/09
ICS9DS400
Four Output Differential Buffer for PCIe for Gen 2 with Spread
8
Advance Information
Clock Periods Differential Outputs with Spread Spectrum Enabled
1 Clock
1us
0.1s
1us
1 Clock
Lg-
-SSC
-ppm error
0ppm
+ ppm error
+SSC
Lg+
Absolute
Period
Short-term
Average
Long-Term
Average
Period
Long-Term
Average
Short-term
Average
Period
Minimum
Absolute
Period
Minimum
Absolute
Period
Minimum
Absolute
Period
Nominal
Maximum
DIF 100
9.87400
9.99900
10.00000
10.00100
10.05130
10.17630
ns
1,2,3
DIF 133
7.41425
7.49925
7.50000
7.50075
7.53845
7.62345
ns
1,2,4
DIF 166
5.91440
5.99940
6.00000
6.00060
6.03076
6.11576
ns
1,2,4
DIF 200
4.91450
4.99950
5.00000
5.00050
5.02563
5.11063
ns
1,2,4
DIF 266
3.66463
3.74963
3.75000
3.75038
3.76922
3.85422
ns
1,2,4
DIF 333
2.91470
2.99970
3.00000
3.00030
3.01538
3.10038
ns
1,2,4
DIF 400
2.41475
2.49975
2.50000
2.50025
2.51282
2.59782
ns
1,2,4
Clock Periods Differential Outputs with Spread Spectrum Disabled
1 Clock
1us
0.1s
1us
1 Clock
Lg-
-SSC
-ppm error
0ppm
+ ppm error
+SSC
Lg+
Absolute
Period
Short-term
Average
Long-Term
Average
Period
Long-Term
Average
Short-term
Average
Period
Minimum
Absolute
Period
Minimum
Absolute
Period
Minimum
Absolute
Period
Nominal
Maximum
DIF 100
9.87400
9.99900
10.00000
10.00100
10.17630
ns
1,2,3
DIF 133
7.41425
7.49925
7.50000
7.50075
7.62345
ns
1,2,4
DIF 166
5.91440
5.99940
6.00000
6.00060
6.11576
ns
1,2,4
DIF 200
4.91450
4.99950
5.00000
5.00050
5.11063
ns
1,2,4
DIF 266
3.66463
3.74963
3.75000
3.75038
3.85422
ns
1,2,4
DIF 333
2.91470
2.99970
3.00000
3.00030
3.10038
ns
1,2,4
DIF 400
2.41475
2.49975
2.50000
2.50025
2.59782
ns
1,2,4
1Guaranteed by design and characterization, not 100% tested in production.
3 Driven by SRC output of main clock, PLL or Bypass mode
4 Driven by CPU output of CK410B/CK505 main clock, Bypass mode only
2 All Long Term Accuracy specifications are guaranteed with the assumption that the input clock complies with
CK409/CK410B/CK505 accuracy requirements. The 9DS400/800 itself does not contribute to ppm error.
Notes
Definition
Measurement
Window
Units
Symbol
Definition
Units
S
ig
n
a
l
N
a
m
e
S
ig
n
a
l
N
a
m
e
Measurement
Window
Symbol