ICS932S422C Datasheet, PDF (7/21 Pages) Integrated Circuit Systems – PCIe Gen 2 main Clock for Intel-based Servers

Integrated
Circuit
Systems, Inc.
ICS932S422C
Electrical Characteristics - CPU 0.7V Current Mode Differential Pair
PARAMETER
SYMBOL
CONDITIONS*
MIN
TYP
Current Source Output Impedance
Zo
V_O = V_x
3000
Voltage High
Voltage Low
Max Voltage
Min Voltage
Crossing Voltage (abs)
Crossing Voltage (var)
Long Accuracy
Average period
Absolute min period
Rise Time
Fall Time
Rise Time Variation
Fall Time Variation
VHigh
VLow
Vovs
Vuds
Vx(abs)
d-Vx
ppm
Tperiod
T_absmin
t_r
t_f
d-t_r
d-t_f
Statistical measurement on single ended
signal
Measurement on single ended signal
using absolute value.
Variation of crossing over all edges
see Tperiod min-max values
400MHz nominal
400MHz spread
333.33MHz nominal
333.33MHz spread
266.66MHz nominal
266.66MHz spread
200MHz nominal
200MHz spread
166.66MHz nominal
166.66MHz spread
133.33MHz nominal
133.33MHz spread
100.00MHz nominal
100.00MHz spread
400MHz nominal/spread
333.33MHz nominal/spread
266.66MHz nominal/spread
200MHz nominal/spread
166.66MHz nominal/spread
133.33MHz nominal/spread
100.00MHz nominal/spread
V_OL = 0.175V, V_OH = 0.525V
V_OH = 0.525V V_OL = 0.175V
V_OL = 0.175V, V_OH = 0.525V
V_OH = 0.525V V_OL = 0.175V
660
-150
-300
250
-300
2.4993
2.4993
2.9991
2.9991
3.7489
3.7489
4.9985
4.9985
5.9982
5.9982
7.4978
7.4978
9.9970
9.9970
2.4143
2.9141
3.6639
4.8735
5.8732
7.3728
9.8720
175
175
Duty Cycle
d_t3
Measurement from differential wavefrom
45
Skew
t_sk3
CPU(4:0), V_T = 50%
Jitter, Cycle to cycle
t_jcyc-cyc
Measurement from differential wavefrom,
(CPU(4:0))
*T_A = 0 - 70°C; V_DD = 3.3 V +/-5%; C_L =2pF, R_S=33.2Ω, R_P=49.9Ω, Ι_REF = 475Ω
1_{Guaranteed by design and characterization, not 100% tested in production.}
2 _{All Long Term Accuracy and Clock Period specifications are guaranteed assuming that REF is at 14.31818MHz}
3_{IREF = VDD/(3xRR). For RR = 475Ω (1%), IREF = 2.32mA. IOH = 6 x IREF and VOH = 0.7V @ ZO=50Ω.}
MAX
850
150
1150
550
140
300
2.5008
2.5133
3.0009
3.016
3.7511
3.77
5.0015
5.0266
6.0018
6.0320
7.5023
7.5400
10.0030
10.0533
525
525
125
125
55
100
50
UNITS
Ω
mV
mV
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
NOTES
1
1,3
1,3
1
1
1
1
1,2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
1,2
1,2
1,2
1,2
1,2
1,2
1,2
1
1
1
1
1
1
1
1412A—12/10/07
7