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ICS9148-25 Datasheet, PDF (11/13 Pages) Integrated Circuit Systems – Pentium/Pro System and Cyrix Clock Chip
ICS9148-25
Electrical Characteristics-REF1, 48MHz, & 24MHz
TA = 0 - 70C; VDD = VDDL = 3.3 V +/-5%; CL = 20 - 45 pF (unless otherwise stated)
PARAMETER
SYMBOL
CONDITIONS
Output Impedance
RDSP7 VO = VDD*(0.5)
Output Impedance
RDSN7 VO = VDD*(0.5)
Output High Voltage
VOH7 IOH = -30 mA
Output Low Voltage
VOL7 IOL = 23 mA
Output High Current
IOH7
VOH = 2.0 V
Output Low Current
Rise Time
Fall Time
Duty Cycle
Jitter
IOL7
Tr71
Tf71
Dt71
tjcyc-cyc71
Tj1s71
Tj
1
abs7
VOL = 0.8 V
VOL = 0.4 V, VOH = 2.4 V
VOH = 2.4 V, VOL = 0.4 V
VT = 1.5 V
VT = 1.5 V
VT = 1.5 V
VT = 1.5 V
1Guarenteed by design, not 100% tested in production.
MIN TYP MAX UNITS
10
24
Ω
10
24
Ω
2.6 2.75
V
0.3 0.4 V
-62 -40 mA
40
50
mA
1.4
2
ns
1.4
2
ns
45
54
55
%
1400
ps
210 400 ps
-1000 450 1000 ps
Electrical Characteristics - REF0
TA = 0 - 70C; VDD = VDDL = 3.3 V +/-5%; CL = 20 - 45 pF (unless otherwise stated)
PARAMETER SYMBOL
CONDITIONS
Output Impedance
RDSP7 VO = VDD*(0.5)
Output Impedance
RDSN7 VO = VDD*(0.5)
Output High Voltage VOH7 IOH = -30 mA
Output Low Voltage
VOL7 IOL = 23 mA
Output High Current
IOH7
VOH = 2.0 V
Output Low Current
IOL7
VOL = 0.8 V
Rise Time
Tr71
VOL = 0.4 V, VOH = 2.4 V
Fall Time
Tf71
VOH = 2.4 V, VOL = 0.4 V
Duty Cycle
Dt71
VT = 1.5 V
Jitter
tjcyc-cyc71
Tj1s71
Tjabs71
VT = 1.5 V
VT = 1.5 V
VT = 1.5 V
1Guarenteed by design, not 100% tested in production.
MIN
10
10
2.6
41
40
-1000
TYP
2.75
0.3
-62
50
1.8
1.8
54
1400
350
900
MAX UNITS
24
Ω
24
Ω
V
0.4 V
-54 mA
mA
2.2 ns
2.2 ns
60 %
ps
400 ps
1000 ps
11