
IDTTM Frequency Generator with 200MHz Differential CPU Clocks
0542J—01/25/10
ICS950812
Frequency Generator with 200MHz Differential CPU Clocks
10
Electrical Characteristics - PCICLK Buffered Mode
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
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
VOH@MIN = 1.0V, VOH@MAX = 3.135V
-33
-28
mA
Output Low Current
IOL
1
VOL @MIN = 1.95V, VOL @MAX = 0.4V
26
38
mA
Rise Time
tr1
1
VOL = 0.4 V, VOH = 2.4 V (Fig. 7)
0.5
1.4
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
45
52
55
%
Skew
tsk1
1
VT = 1.5 V
35
500
ps
Jitter,cycle to cyc
tjcyc-cyc
1
VT = 1.5 V (Additive) (Fig. 8)
60
120
ps
1Guaranteed by design, not 100% tested in production.
Electrical Characteristics - CPU (0.7V Select) 133.33MHz
TA = 0 - 90°C; VDD=3.3V +/-5%; (unless otherwise specified)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Current Source Output
Impedance
Zo
1
VO = Vx
3000
Average Period
TPERIOD
Fig. 1
7.50
7.51
7.65
ns
Voltage High
VHigh
660
718
850
Voltage Low
VLow
-150
17
150
Max Voltage
Vovs
730
1150
Min Voltage
Vuds
-450
7
Crossing Voltage (abs)
Vcross(abs)
Fig. 3
250
340
550
mV
Crossing Voltage (var)
d-Vcross
Variation of crossing over all edges (Fig. 4)
15
140
mV
Rise Time
tr
VOL = 0.175V, VOH = 0.525V (Fig. 3)
175
310
810
ps
Fall Time
tf
VOH = 0.525V VOL = 0.175V (Fig. 3)
175
315
810
ps
Rise Time Variation
d-tr
5
125
ps
Fall Time Variation
d-tf
5
125
ps
Duty Cycle
dt3
Measurement from differential wavefrom (Fig 1)
45
51
55
%
Skew
tsk3
VT = 50%
14
100
ps
Jitter, Cycle to cycle
tjcyc-cyc
1
VT = 50% (Fig. 1)
75
175
ps
1Guaranteed by design, not 100% tested in production.
2 I
OWT can be varied and is selectable thru the MULTSEL pin.
Statistical measurement on single ended signal
using oscilloscope math function.
mV
Measurement on single ended signal using
absolute value.
mV