ICS9UMS9610CKLFT Datasheet, PDF (7/20 Pages) Integrated Device Technology – PC MAIN CLOCK

ICS9UMS9610
PC MAIN CLOCK
Advance Information
Electrical Characteristics - SMBus Interface
PARAMETER
SYMBOL
CONDITIONS
MIN
MAX UNITS Notes
SMBus Voltage
Low-level Output Voltage
Current sinking at
V_OLSMB = 0.4 V
SCLK/SDATA
Clock/Data Rise Time
SCLK/SDATA
Clock/Data Fall Time
Maximum SMBus Operating
Frequency
V_DD
V_OLSMB
I_PULLUP
T_RI2C
T_FI2C
F_SMBUS
@ I_PULLUP
SMB Data Pin
(Max VIL - 0.15) to
(Min VIH + 0.15)
(Min VIH + 0.15) to
(Max VIL - 0.15)
Block Mode
2.7
3.6
V
1
0.4
V
1
4
mA
1
1000
ns
1
300
ns
1
100
kHz
1
Notes on Electrical Characteristics:
1_{Guaranteed by design and characterization, not 100% tested in production.}
2 _{Slew rate measured through Vswing centered around differential zero}
3 _{Vxabs is defined as the voltage where CLK = CLK#}
4 _{Only applies to the differential rising edge (CLK rising and CLK# falling)}
5 _{Defined as the total variation of all crossing voltages of CLK rising and CLK# falling. Matching applies to rising edge rate of}
CLK and falling edge of CLK#. It is measured using a +/-75mV window centered on the average cross point where CLK meets
CLK#. The average cross point is used to calculate the voltage thresholds the oscilloscope is to use for the edge rate
calculations.
6 _{All Long Term Accuracy and Clock Period specifications are guaranteed assuming that REF is at 14.31818MHz}
7 _{Operation under these conditions is neither implied, nor guaranteed.}
8 _{Maximum input voltage is not to exceed maximum VDD}
9 _{See PCI Clock-to-Clock Delay Figure}
Clock Periods Differential Outputs with Spread Spectrum Enabled
Measurement Window _{1 Clock}
Symbol
Lg-
1us
-SSC
0.1s
-ppm error
0.1s
0ppm
0.1s
+ ppm error
1us
+SSC
1 Clock
Lg+
Definition
SRC 100
CPU 100
CPU 133
Absolute Short-term Long-Term
Period
Average Average
Period
Minimum
Absolute
Period
9.87400
9.91400
7.41425
Minimum
Absolute
Period
9.99900
9.99900
7.49925
Minimum
Absolute
Period
9.99900
9.99900
7.49925
Nominal
10.00000
10.00000
7.50000
Long-Term Short-term
Average
Average
Period
Maximum Maximum Maximum
10.00100
10.00100
7.50075
10.05130
10.05130
7.53845
10.17630
10.13630
7.62345
Units
ns
ns
ns
Notes
1,2
1,2
1,2
Clock Periods Differential Outputs with Spread Spectrum Disabled
Measurement Window _{1 Clock}
Symbol
Lg-
1us
-SSC
0.1s
-ppm error
0.1s
0ppm
0.1s
+ ppm error
1us
+SSC
1 Clock
Lg+
Absolute Short-term Long-Term
Period
Average Average
Period
Long-Term Short-term
Average
Average
Period
Definition
Minimum Minimum Minimum
Absolute Absolute Absolute Nominal Maximum Maximum Maximum
Period
Period
Period
SRC 100 9.87400
9.99900 10.00000 10.00100
10.17630
CPU 100 9.91400
9.99900 10.00000 10.00100
10.13630
CPU 133 7.41425
7.49925 7.50000
7.50075
7.62345
DOT 96 10.16560
10.41560 10.41670 10.41770
10.66770
1_{Guaranteed by design and characterization, not 100% tested in production.}
2 _{All Long Term Accuracy and Clock Period specifications are guaranteed assuming that REFOUT is at 14.31818MHz}
IDT^TM/ICST^M PC MAIN CLOCK
7
Units
ns
ns
ns
ns
Notes
1,2
1,2
1,2
1,2
1336—07/21/08