ICS952621 Datasheet, PDF (6/15 Pages) Integrated Circuit Systems – Programmable Timing Control Hub™ for Next Gen P4™ processor

Integrated
Circuit
Systems, Inc.
ICS952621
Electrical Characteristics - 3V66 Mode: 3V66 [3:0]
T_A = 0 - 70°C; V_DD = 3.3V +/-5%; C_L = 10-30 pF (unless otherwise specified)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
Long Accuracy
ppm
see Tperiod min-max values
-300
300
ppm
Clock period
T_period
66.66MHz output nominal
66.66MHz output spread
14.9955
14.9955
15.0045 ns
15.0799 ns
Output High Voltage
V_OH
Output Low Voltage
V_OL
I_OH = -1 mA
I_OL = 1 mA
2.4
V
0.55
V
Output High Current
I_OH
V _OH = 1.0 V
V_OH = 3.135 V
-33
-33
mA
mA
Output Low Current
I_OL
Edge Rate
V_OL = 1.95 V
30
V_OL = 0.4 V
Rising edge rate
1
mA
38
mA
4
V/ns
Edge Rate
Falling edge rate
1
4
V/ns
Rise Time
t_r1
V_OL = 0.4 V, V_OH = 2.4 V
0.5 1.78
2
ns
Fall Time
t_f1
V_OH = 2.4 V, V_OL = 0.4 V
0.5 1.72
2
ns
Duty Cycle
d_t1
V_T = 1.5 V
45 _49.9 55
%
Skew
t_sk1
V_T = 1.5 V
80 250
ps
Jitter
t_jcyc-cyc
V_T = 1.5 V 3V66
172 250
ps
1_{Guaranteed by design, not 100% tested in production.}
2 _{All Long Term Accuracy and Clock Period specifications are guaranteed with the assumption that Ref output is at}
14.31818MHz
Notes
1,2
2
2
1
1
1
1
1
1
1
Electrical Characteristics - PCICLK
T_A = 0 - 70°C; V_DD = 3.3V +/-5%; C_L = 10-30 pF (unless otherwise specified)
PARAMETER
SYMBOL
CONDITIONS
MIN
Long Accuracy
ppm
see Tperiod min-max values
-300
Clock period
T_period
33.33MHz output nominal
33.33MHz output spread
29.9910
29.9910
Output High Voltage
V_OH
I_OH = -1 mA
2.4
Output Low Voltage
V_OL
I_OL = 1 mA
Output High Current
I_OH
V _OH = 1.0 V
V_OH = 3.135 V
-33
Output Low Current
I_OL
V_OL = 1.95 V
V_OL = 0.4 V
30
Edge Rate
Rising edge rate
1
TYP MAX
300
30.0090
30.1598
0.55
-33
38
4
UNITS
ppm
ns
ns
V
V
mA
mA
mA
mA
V/ns
Edge Rate
Falling edge rate
1
4
V/ns
Rise Time
t_r1
V_OL = 0.4 V, V_OH = 2.4 V
0.5
1.78
2
ns
Fall Time
t_f1
V_OH = 2.4 V, V_OL = 0.4 V
0.5
1.72
2
ns
Duty Cycle
d_t1
V_T = 1.5 V
45
51.2 55
%
Skew
t_sk1
V_T = 1.5 V
59 500
ps
Jitter
t_jcyc-cyc
V_T = 1.5 V 3V66
140 250
ps
1_{Guaranteed by design, not 100% tested in production.}
2 _{All Long Term Accuracy and Clock Period specifications are guaranteed with the assumption that Ref output is at}
14.31818MHz
Notes
1,2
2
2
1
1
1
1
1
1
1
0756A—09/10/04
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