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ICS950812 Datasheet(PDF) 16 Page - Integrated Circuit Systems

Part # ICS950812
Description  Frequency Generator with 200MHz Differential CPU Clocks
PDF  29 Pages
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Manufacturer  ICST [Integrated Circuit Systems]
Direct Link  http://www.icst.com
Logo ICST - Integrated Circuit Systems

ICS950812 Datasheet(HTML) 16 Page - Integrated Circuit Systems

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ICS950812
0542G—08/21/03
Electrical Characteristics - VCH, 48MHz DOT, 48MHz, USB
TA = 0 - 90°C; VDD=3.3V +/-5%; CL = 10-20 pF (unless otherwise specified)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Output Frequency
FO1
Fig. 8
48
MHz
Output Impedance
RDSP1
1
VO = VDD*(0.5)
20
48
70
Ω
Output High Voltage
VOH
1
IOH = -1 mA
2.05
V
Output Low Voltage
VOL
1
IOL = 1 mA
0.5
V
Output High Current
IOH
1
V OH@MIN = 1.0 V, V OH@MAX = 3.135 V
-29
-20
mA
Output Low Current
IOL
1
VOL @MIN = 1.95 V, VOL @MAX = 0.4 V
25
27
mA
48DOT Rise Time
tr1
1
VOL = 0.4 V, VOH = 2.4 V (Fig. 7)
0.5
0.7
1.15
ns
48DOT Fall Time
tf1
1
VOH = 2.4 V, VOL = 0.4 V (Fig. 7)
0.5
0.8
1.15
ns
VCH 48 USB Rise Time
tr1
1
VOL = 0.4 V, VOH = 2.4 V (Fig. 7)
1
1.2
2.3
ns
VCH 48 USB Fall Time
tf1
1
VOH = 2.4 V, VOL = 0.4 V (Fig. 7)
1
1.4
2.3
ns
48 DOT Duty Cycle
dt1
1
VT = 1.5 V (Fig. 8)
45
53
55
%
VCH 48 USB Duty Cycle
dt1
1
VT = 1.5 V (Fig. 8)
45
53
55
%
48 DOT Jitter
tjcyc-cyc
1
VT = 1.5 V (Fig. 8)
183
410
ps
USB to DOT Skew
tsk1
1
VT = 1.5 V (0 OR 180 degrees)
0.43
1
ns
VCH Jitter
tjcyc-cyc
1
VT = 1.5 V (Fig. 8)
157
410
ps
1Guaranteed by design, not 100% tested in production.
Electrical Characteristics - 3V66 -Un-Buffered Mode: 3V66 [5:0]
TA = 0 - 90°C; VDD=3.3V +/-5%; CL = 10-30 pF (unless otherwise specified)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Output Impedance
RDSP1
1
VO = VDD*(0.5)
12
33
65
Ω
Average Period
TPERIOD
Fig. 8
15.00
15.01
15.30
ns
Output High Voltage
VOH
1
IOH = -1 mA
2.05
V
Output Low Voltage
VOL
1
IOL = 1 mA
0.65
V
Output High Current
IOH
1
V OH@MIN = 1.0 V, V OH@MAX = 3.135 V
-33
-28
mA
Output Low Current
IOL
1
VOL @MIN = 1.95 V, VOL @MAX = 0.4 V
26
38
mA
Rise Time
tr1
1
VOL = 0.4 V, VOH = 2.4 V (Fig. 7)
0.5
1.6
2.3
ns
Fall Time
tf1
1
VOH = 2.4 V, VOL = 0.4 V (Fig. 7)
0.5
1.2
2.3
ns
Duty Cycle
dt1
1
VT = 1.5 V (Fig. 8)
45
48
55
%
Skew
tsk1
1
VT = 1.5 V
40
250
ps
Jitter
tjcyc-cyc
1
VT = 1.5 V (Fig. 8)
133
290
ps
1Guaranteed by design, not 100% tested in production.



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