ICS954204 Datasheet, PDF (9/16 Pages) Integrated Circuit Systems – Programmable Timing Control HubTM for Mobile P4TM Systems

Integrated
Circuit
Systems, Inc.
ICS954204
Electrical Characteristics - PCICLK/PCICLK_F
T_A = 0 - 70°C; V_DD = 3.3 V +/-5%; C_L = 10-20 pF (unless otherwise specified)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
Long Accuracy
ppm
see Tperiod min-max values
-300
300
Clock period
T_period
33.33MHz output non-spread
33.33MHz output spread
29.9910
30.0090
30.1598
Absolute min/max period
T_abs
33.33MHz output non-spread
33.33MHz output spread
29.4910
30.5090
30.6598
Output High Voltage
V_OH
I_OH = -1 mA
2.4
Output Low Voltage
V_OL
I_OL = 1 mA
0.55
Output High Current
I_OH
V _OH = 1.0 V
-33
V_OH = 3.135 V
-33
Output Low Current
I_OL
V_OL = 1.95 V
30
V_OL = 0.4 V
38
Edge Rate
Rising edge rate
1
1.37
4
Edge Rate
Falling edge rate
1
1.6
4
Rise Time
t_r1
V_OL = 0.4 V, V_OH = 2.4 V
0.5
2
Fall Time
t_f1
V_OH = 2.4 V, V_OL = 0.4 V
0.5
2
Duty Cycle
d_t1
V_T = 1.5 V
45
50
55
Skew
t_sk1
V_T = 1.5 V
50
500
Jitter
t_jcyc-cyc
V_T = 1.5 V
95
500
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}
UNITS
ppm
ns
ns
ns
ns
V
V
mA
mA
mA
mA
V/ns
V/ns
ns
ns
%
ps
ps
Notes
1,2
2
2
1,2
1,2
1
1
1
1
1
1
1
1
1
1
1
1
1
Electrical Characteristics - 48MHz, USB
T_A = 0 - 70°C; V_DD = 3.3 V +/-5%; C_L = 10-20 pF (unless otherwise specified)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
Long Accuracy
ppm
see Tperiod min-max values
-100
100
Clock period
T_period
48.00000 MHz output
20.83125
20.83542
Absolute min/max period
T_abs
48.00000 MHz output
20.4813
21.1854
Output High Voltage
V_OH
I_OH = -1 mA
2.4
Output Low Voltage
V_OL
I_OL = 1 mA
0.55
Output High Current
I_OH
V_OH = 1.0 V
-29
V_OH = 3.135 V
-23
Output Low Current
I_OL
V_OL = 1.95 V
29
V_OL = 0.4 V
27
Edge Rate
Rising edge rate
1
1.8
2
Edge Rate
Falling edge rate
1
1.6
2
Rise Time
t_r1
V_OL = 0.4 V, V_OH = 2.4 V
1
1.43
2
Fall Time
t_f1
V_OH = 2.4 V, V_OL = 0.4 V
1
1.33
2
Duty Cycle
d_t1
V_T = 1.5 V
45
48
55
Jitter, Cycle to cycle
t_jcyc-cyc
V_T = 1.5 V
150
350
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}
UNITS
ppm
ns
ns
V
V
mA
mA
mA
mA
V/ns
V/ns
ns
ns
%
ps
Notes
1,2
2
1,2
1
1
1
1
1
1
1
1
1
1
1
1
0933D—03/16/05
9