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ICS9148-46 Datasheet, PDF (6/9 Pages) Integrated Circuit Systems – Pentium/ProTM System Clock Chip
ICS9148-46
Electrical Characteristics - CPUCLK
TA = 0 - 70C; VDD = 3.3 V +/-5%, VDDL = 2.5 V +/-5%; CL = 20 pF (unless otherwise stated)
PARAMETER SYMBOL
CONDITIONS
MIN TYP MAX UNITS
Output High Voltage VOH2B IOH = -12.0 mA
Output Low Voltage VOL2B IOL = 12 mA
Output High Current IOH2B VOH = 1.7 V
Output Low Current
IOL2B VOL = 0.7 V
Rise Time
Fall Time
Duty Cycle
Skew
Jitter, Cycle-to-cycle
Jitter, One Sigma
Jitter, Absolute
tr2B1
tf2B1
dt2B1
tsk2B1
tjcyc-cyc2B1
tj1s2B1
tjabs2B1
VOL = 0.4 V, VOH = 2.0 V
VOH = 2.0 V, VOL = 0.4 V
VT = 1.25 V
VT = 1.25 V
VT = 1.25 V
VT = 1.25 V
VT = 1.25 V
1Guaranteed by design, not 100% tested in production.
2 2.3
V
0.2 0.4 V
-41 -19 mA
19 37
mA
1.25 1.6 ns
1
1.6 ns
45 48 55 %
30 175 ps
150 250 ps
40 150 ps
-250 140 +250 ps
Electrical Characteristics - PCICLK
TA = 0 - 70C; VDD = VDDL = 3.3 V +/-5%; CL = 30 pF
PARAMETER
SYMBOL
CONDITIONS
Output High Voltage VOH1 IOH = -11 mA
Output Low Voltage
VOL1 IOL = 9.4 mA
Output High Current
IOH1 VOH = 2.0 V
Output Low Current
IOL1 VOL = 0.8 V
Rise Time1
Fall Time1
Duty Cycle1
tr1
VOL = 0.4 V, VOH = 2.4 V
tf1
VOH = 2.4 V, VOL = 0.4 V
dt1
VT = 1.5 V
Skew1
Jitter, One Sigma1
Jitter, Absolute1
tsk1
tj1s1
tjabs1
VT = 1.5 V
VT = 1.5 V
VT = 1.5 V
1Guaranteed by design, not 100% tested in production.
MIN TYP MAX UNITS
2.4 3.1
V
0.1 0.4 V
-62 -22 mA
16 57
mA
1.5
2
ns
1.1
2
ns
45 50 55 %
140 500 ps
17 150 ps
-500 70 500 ps
6