ICS9FG107 Datasheet, PDF (6/14 Pages) Integrated Circuit Systems – Programmable FTG for Differential CPU, PCI Express & SATA Clocks

Integrated
Circuit
Systems, Inc.
ICS9FG107
Electrical Characteristics - DIF 0.7V Current Mode Differential Pair
T_A = 0 - 70°C; V_DD = 3.3 V +/-5%; C_L =2pF, R_S=33.2∠, R_P=49.9∠ !!_REF∠!!9,
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX
Current Source Output
Impedance
Zo¹
V_O = V_x
3000
Voltage High
VHigh
Statistical measurement on
660
850
single ended signal using
Voltage Low
VLow
oscilloscope math function.
-150
150
Max Voltage
Vovs
Measurement on single ended
1150
Min Voltage
Vuds
signal using absolute value.
-300
Crossing Voltage (abs) Vcross(abs)
250
550
Crossing Voltage (var)
d-Vcross
Variation of crossing over all
140
edges
Long Accuracy
ppm
see Tperiod min-max values -300
300
400MHz nominal
2.4993
2.5008
400MHz spread
2.4993
2.5133
333.33MHz nominal
2.9991
3.0009
333.33MHz spread
2.9991
3.016
266.66MHz nominal
3.7489
3.7511
266.66MHz spread
3.7489
3.77
Average period
Tperiod
200MHz nominal
200MHz spread
4.9985
4.9985
5.0015
5.0266
166.66MHz nominal
5.9982
6.0018
166.66MHz spread
5.9982
6.0320
133.33MHz nominal
7.4978
7.5023
133.33MHz spread
7.4978
5.4000
100.00MHz nominal
9.9970
10.0030
100.00MHz spread
9.9970
10.0533
400MHz nominal/spread
2.4143
333.33MHz nominal/spread 2.9141
266.66MHz nominal/spread 3.6639
Absolute min period
T_absmin
200MHz nominal/spread
166.66MHz nominal/spread
4.8735
5.8732
133.33MHz nominal/spread 7.3728
100.00MHz nominal/spread 9.8720
Rise Time
t_r
V_OL = 0.175V, V_OH = 0.525V
175
700
Fall Time
t_f
V_OH = 0.525V V_OL = 0.175V
175
700
Rise Time Variation
d-t_r
125
Fall Time Variation
d-t_f
125
Duty Cycle
d_t3
Measurement from differential
45
wavefrom
55
Skew
t_sk3
V_T = 50%
85
Measurement from differential
50
Jitter, Cycle to cycle
t_jcyc-cyc
wavefrom f not equal 266 MHz
Measurement from differential
wavefrom f = 266 MHz
85
1_{Guaranteed by design and characterization, not 100% tested in production.}
2 _{All Long Term Accuracy and Clock Period specifications are guaranteed assuming that REFOUT is at}
14.31818MHz or 25 MHz
3 _{Figures are for down spread.}
UNITS
∠
mV
mV
mV
mV
ppm
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ps
ps
ps
ps
%
ps
ps
ps
NOTES
1
1
1
1
1
1
1
1,2
2
2,3
2
2,3
2
2,3
2
2,3
2
2,3
2
2,3
2
2,3
1,2
1,2
1,2
1,2
1,2
1,2
1,2
1
1
1
1
1
1
1
1
0863C—11/22/04
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