ICS9UMS9633BW Datasheet, PDF (7/18 Pages) Integrated Device Technology – ULTRA MOBILE PC CLOCK FOR AUTOMOTIVE USE

ICS9UMS9633BW
ULTRA MOBILE PC CLOCK FOR AUTOMOTIVE USE
Datasheet
Electrical Characteristics - SMBus Interface
PARAMETER
SYMBOL
CONDITIONS
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
MIN
MAX UNITS Notes
2.7
3.3
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#.
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.}
Clock Periods Differential Outputs with Spread Spectrum Enabled
Measurement Window
Symbol
1 Clock
Lg-
1us
-SSC
0.1s
-ppm error
0.1s
0ppm
0.1s
+ ppm error
1us
+SSC
1 Clock
Lg+
Definition
Absolute Short-term Long-Term
Period
Average Average
Period
Long-Term Short-term Absolute
Average Average Period
SRC 100
CPU 100
CPU 133
CPU 166
Minimum
9.87400
9.91400
7.41425
5.91440
Minimum
9.99900
9.99900
7.49925
5.99940
Minimum
9.99900
9.99900
7.49925
5.99940
Nominal
10.00000
10.00000
7.50000
6.00000
Maximum
10.00100
10.00100
7.50075
6.00060
Maximum
10.05130
10.05130
7.53845
6.03076
Maximum
10.17630
10.13630
7.62345
6.11576
Units
ns
ns
ns
ns
Clock Periods Differential Outputs with Spread Spectrum Disabled
Measurement Window
Symbol
1 Clock
Lg-
1us
-SSC
0.1s
-ppm error
0.1s
0ppm
0.1s
+ ppm error
1us
+SSC
1 Clock
Lg+
Definition
Absolute Short-term Long-Term
Period
Average Average
Period
Long-Term Short-term Absolute
Average Average Period
Minimum Minimum Minimum Nominal Maximum Maximum Maximum
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
CPU 166 5.91440
5.99940 6.00000
6.00060
6.11576
DOT 96 10.16560
10.41560 10.41670
1_{Guaranteed by design and characterization, not 100% tested in production.}
10.41770
10.66770
2 _{All Long Term Accuracy and Clock Period specifications are guaranteed assuming that REFOUT is at 14.31818MHz}
Units
ns
ns
ns
ns
ns
Notes
1,2
1,2
1,2
1,2
Notes
1,2
1,2
1,2
1,2
1,2
IDT^TM/ICS^TM Ultra Mobile PC Clock for Automotive use
7
1425A—09/02/09