IDT
®
Programmable Timing Control Hub
TM
for Next Gen P4
TM
Processor 0743H—03/15/13
ICS932S208
Programmable Timing Control Hub
TM
for Next Gen P4
TM
Processor
6
Electrical Characteristics - CPU & SRC 0.7V Current Mode Differential Pair
T
A
= 0 - 70°C; V
DD
= 3.3 V +/-5%; C
L
=2pF
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS NOTES
Current Source Output
Im
edance
Zo
1
V
O
= V
x
3000
1
Output High Voltage
V
OH3
I
OH
= -1 mA
2.4 V
Output Low Voltage
V
OL3
I
OL
= 1 mA
0.4
Voltage High VHigh 660 850 1
Voltage Low VLow -150 150 1
Max Volta
eVovs 1150 1
Min Volta
e Vuds -300 1
Crossin
Volta
e
abs
Vcross
abs
250 550 mV 1
Crossing Voltage (var) d-Vcross
Variation of crossing over all
ed
es
140 mV 1
Lon
Accurac
m see T
eriod min-max values -300 300
m1,2
200MHz nominal 4.9985 5.0015 ns 2
200MHz s
read 4.9985 5.0266 ns 2
166.66MHz nominal 5.9982 6.0018 ns 2
166.66MHz s
read 5.9982 6.0320 ns 2
133.33MHz nominal 7.4978 7.5023 ns 2
133.33MHz s
read 7.4978 5.4000 ns 2
100.00MHz nominal 9.9970 10.0030 ns 2
100.00MHz s
read 9.9970 10.0533 ns 2
200MHz nominal 4.8735 ns 1,2
166.66MHz nominal/s
read 5.8732 ns 1,2
133.33MHz nominal/s
read 7.3728 ns 1,2
100.00MHz nominal/s
read 9.8720 ns 1,2
Rise Time
t
V
OL
= 0.175V, V
OH
= 0.525V
175 700 ps 1
Fall Time
t
f
V
OH
= 0.525V V
OL
= 0.175V
175 700 ps 1
Rise Time Variation
d-t
r
125 ps 1
Fall Time Variation
d-t
f
125 ps 1
Duty Cycle
d
t3
Measurement from differential
wavefrom
45 55 % 1
Skew
t
sk3
V
T
= 50%
100 ps 1
Jitter, Cycle to cycle
t
jcyc-cyc
Measurement from differential
wavefrom
125 ps 1
1
Guaranteed b
desi
n, not 100% tested in
roduction.
SRC clock outputs run at onl
100MHz or 200MHz, specs for 133.33 and 166.66 do not appl
to SRC clock pair.
Statistical measurement on single
ended signal using oscilloscope
math function.
mV
Measurement on single ended
signal using absolute value.
mV
2
All Long Term Accuracy and Clock Period specifications are guaranteed with the assumption that Ref output is at
14.31818MHz
TperiodAverage period
Absolute min period
T
absmin