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ICS9248-110 Datasheet, PDF (11/14 Pages) Integrated Circuit Systems – AMD-K7TM System Clock Chip
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ICS9248-110
Electrical Characteristics - USB, REF
TA = 0 - 70C; VDD = 3.3V +/-5%; CL = 20 pF (unless otherwise specified)
PARAMETER
SYMBOL
CONDITIONS
Output Impedance
RDSP2B1 VO=VDD*(0.5)
Output Impedance
RDSN2B1 VO=VDD*(0.5)
Output High Voltage
VOH5 IOH = -12 mA
Output Low Voltage
VOL5
IOL = 9 mA
Output High Current
IOH5
VOH = 2.0 V
Output Low Current
IOL5
VOL = 0.8 V
Rise Time1
tr51
VOL = 0.4 V, VOH = 2.4 V
Fall Time1
tf51
VOH = 2.4 V, VOL = 0.4 V
Duty Cycle1
dt51
VT = 1.5 V
REF Jitter, Cyl-to-Cyl
tjcyc-cyc51 VT = 1.5 V
1Guaranteed by design, not 100% tested in production.
MIN TYP MAX UNITS
20
47
60
Ω
20
44
60
Ω
2.4
V
0.4 V
-22 mA
16
mA
2.6 4.0 ns
2.5 4.0 ns
45
51
55
%
320 700 ps
Electrical Characteristics - CPUCLK (Open Drain)
TA = 0 - 70C; VDD=3.3V +/- 5%; CL = 20 pF (unless otherwise specified)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
Output Impedance
Output High Voltage
Output Low Voltage
Output Low Current
Rise Time1
Fall Time1
Differential voltage-AC1
Differential voltage-DC1
Diff Crossover Voltage1
Duty Cycle1
Skew window1
Jitter, Cycle-to-cycle1
Jitter, Absolute1
ZO1
VOH2B
VOL2B
IOL2B
tr2B1
tf2B1
VDIF
VDIF
VX
dt2B1
tsk2B1
tjcyc-cyc2B1
tjabs2B1
VO=VX
Termination to Vpull-up(external)
Termination to Vpull-up(external)
VOL = 0.3 V
VOL = 20% , VOH = 80%
VOH = 80%, VOL = 20%
Note 2
Note 2
Note 3
VT = 50%
VT = 50%
VT = VX
VT = 50%
60
Ω
1
1.8 V
0.8 V
18
mA
2.4 2.6 ns
1.2 2.6 ns
0.4
Vpull-up(ext) V
0.2
Vpull-up(ext) V
1.1
1.4
1.7
V
44
46
54
%
40 200 ps
80 250 ps
120 250 ps
Notes:
1 - Guaranteed by design, not 100% tested in production.
2 - VDIF specifies the minimum input differential voltages (VTR-VCP) required for switching, where VTR is the
"true" input Level and VCP is the "complement" input level.
3 - Vpull-up(external) = 2.7V, Min=Vpull-up(external)/2-150mV; Max=Vpull-up(external)/2 +150mV
Third party brands and names are the property of their respective owners.
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