ICS952601 Datasheet, PDF (8/25 Pages) Integrated Circuit Systems – Programmable Timing Control Hub™ for Next Gen P4™ processor

ICS952601
Programmable Timing Control Hub^TM for Next Gen P4^TM Processor
Electrical Characteristics - 48MHz DOT Clock
T_A = 0 - 70°C; V_DD = 3.3 V +/-5%; C_L = 5-10 pF (unless otherwise specified)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX
Long Accuracy
Clock period
Output High Voltage
Output Low Voltage
Output High Current
Output Low Current
Edge Rate
ppm
T_period
V_OH
V_OL
I_OH
I_OL
see Tperiod min-max
values
66.66MHz output nominal
I_OH = -1 mA
I_OL = 1 mA
V _OH @ MIN = 1.0 V
V_OH @ MAX = 3.135 V
V_OL @ MIN = 1.95 V
V_OL @ MAX = 0.4 V
Rising edge rate
-200
20.8257
2.4
-33
30
2
200
20.8340
0.55
-33
38
4
Edge Rate
Falling edge rate
2
4
Rise Time
t_r1
V_OL = 0.4 V, V_OH = 2.4 V 0.5 0.71
1
UNITS Notes
ppm 1,2
ns
2
V
V
mA
mA
mA
mA
V/ns
1
V/ns
1
ns
1
Fall Time
t_f1
V_OH = 2.4 V, V_OL = 0.4 V 0.5 0.77
1
ns
1
Duty Cycle
d_t1
V_T = 1.5 V
45
49
55
%
1
125us period jitter
Long Term Jitter
(8kHz frequency
0.7
2
ns
1
modulation amplitude)
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
Electrical Characteristics - VCH, 48MHz, USB
T_A = 0 - 70°C; V_DD = 3.3 V +/-5%; C_L = 10-20 pF (unless otherwise specified)
PARAMETER
SYMBOL
CONDITIONS
Long Accuracy
ppm
see Tperiod min-max values
Clock period
Output High Voltage
T_period
V_OH
66.66MHz output nominal
I_OH = -1 mA
Output Low Voltage
V_OL
I_OL = 1 mA
Output High Current
I_OH
V _OH @ MIN = 1.0 V
V_OH@ MAX = 3.135 V
Output Low Current
I_OL
V_OL @MIN = 1.95 V
V_OL @ MAX = 0.4 V
Edge Rate
Rising edge rate
MIN TYP MAX UNITS Notes
-200
20.8257
200 ppm 1,2
20.8340 ns 2
2.4
V
0.55 V
-33
mA
-33 mA
30
mA
38 mA
1
2
V/ns 1
Edge Rate
Falling edge rate
1
2
V/ns 1
Rise Time
Fall Time
Duty Cycle
Long Term Jitter
t_r1
V_OL = 0.4 V, V_OH = 2.4 V
1 1.43 2
ns 1
t_f1
V_OH = 2.4 V, V_OL = 0.4 V
1 1.33 2
ns 1
d_t1
V_T = 1.5 V
45 48 55
%
1
125us period jitter
(8kHz frequency modulation
0.7 6
ns 1
amplitude)
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
IDT^TM Progammable Timing Control Hub^TM for Next Gen P4^TM Processor
8
701J—01/25/10