ICS952003 Datasheet, PDF (13/18 Pages) Integrated Circuit Systems – Programmable Timing Control Hub for P4™ processor

Integrated
Circuit
Systems, Inc.
ICS952003
Preliminary Product Review
Electrical Characteristics - CPUCLK
T_A = 0 - 70º C; V_DD = 3.3 V +/-5%; (unless otherwise stated)
PARAMETER
SYMBOL
C O N D ITIO N S
Current Source Output
Impedance
Z_O
V_O = V_X
Output High Voltage
Output High Current
Rise Time¹
Differential Crossover
Voltage¹
Duty Cycle¹
Skew¹, CPU to CPU
Jitter, Cycle-to-cycle¹
V_OH
I_OH
t_r
V_X
d_t
t_sk
t_jcyc-cyc
V_R = 475W +1%; IREF = 2.32mA; I_OH = 6*IREF
V_OL = 20%, V_OH = 80%
Note 3
V_T = 50%
V_T = 50%
V_T = V_X
Notes:
1 - Guaranteed by design, not 100% tested in production.
MIN
3000
175
45
45
TYP
0.71
-13.92
MAX UNITS
W
1.2
V
mA
700
ps
55
%
55
%
100
ps
150
ps
Electrical Characteristics - PCI
T_A = 0 - 70C; V_DD = 3.3 V +/-5% ; C_L = 30 pF (unless otherwise stated)
PARAMETER
SYMBOL
CONDITIONS
Output Impedance
R_DSP11 V_O = V_DD*(0.5)
Output Impedance
R_DSN11 V_O = V_DD*(0.5)
Output High Voltage
V _OH1
I_OH = -18 mA
Output Low Voltage
V_OL1
I_OL = 9.4 mA
Output High Current
I _{O H1}
V_OH = 2.0 V
Output Low Current
Rise Time
I_OL1
V_OL = 0.8 V
t
1
r1
V_OL = 0.4 V, V_OH = 2.4 V
Fall Time
t
1
f1
V_OH = 2.4 V, V_OL = 0.4 V
Duty Cycle
Skew Window
Jitter
d_t
1
1
t_s
k
1
1
t_j1s
1
1
V_T = 1.5 V
V_T = 1.5 V
V_T = 1.5 V
1_{Guarenteed by design, not 100% tested in production.}
MIN
12
12
2.4
25
45.0
TYP
MAX
55
55
0.4
-22
2.0
2.0
55.0
500
250
UNITS
Ω
Ω
V
V
mA
mA
ns
ns
%
ps
ps
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