ICS952623 Datasheet, PDF (9/27 Pages) Integrated Circuit Systems – Programmable Timing Control Hub for Next Gen P4 processor

Integrated
Circuit
Systems, Inc.
ICS952623
Advance Information
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
MIN TYP MAX UNITS Notes
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
48MHz 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
1
200 ppm 1,2
20.8340 ns 2
V
0.55 V
mA
-33 mA
mA
38 mA
2 V/ns 1
Edge Rate
Falling edge rate
1
2 V/ns 1
Rise Time
t_r1
V_OL = 0.4 V, V_OH = 2.4 V
1
2
ns 1
Fall Time
t_f1
V_OH = 2.4 V, V_OL = 0.4 V
1
2
ns 1
Duty Cycle
d_t1
V_T = 1.5 V
45
55
%
1
125us period jitter
Long Term Jitter
(8kHz frequency modulation
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
0758—02/08/05
9