7
ICS950810
0472F—01/12/04
Electrical Characteristics - CPU (0.7V Select)
T
A
= 0 - 70°C; VDD=3.3V +/-5%; C
L
= 10-20 pF (unless otherwise specified)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Current Source Output
Impedance
Zo
1
V
O
= V
x
3000
Ω
Voltage High VHigh 660 810 850
Voltage Low VLow -150 20 150
Max Voltage Vovs 850 1150
Min Voltage Vuds -450 -15
Crossing Voltage (abs) Vcross(abs) 250 380 550 mV
Crossing Voltage (var) d-Vcross
Variation of crossing over all
edges
22 140 mV
Rise Time t
r
V
OL
= 0.175V, V
OH
= 0.525V 175 290 700 ps
Fall Time t
f
V
OH
= 0.525V V
OL
= 0.175V 175 310 700 ps
Rise Time Variation d-t
r
10 125 ps
Fall Time Variation d-t
f
10 125 ps
Duty Cycle d
t3
Measurement from differential
wavefrom
45 51 55 %
Skew t
sk3
V
= 50% 16 100 ps
Jitter, Cycle to cycle t
jcyc-cyc
1
V
T
= 50% 48 150 ps
1
Guaranteed by design, not 100% tested in production.
2
I
OW
can be varied and is selectable thru the MULTSEL pin.
Statistical measurement on
single ended signal using
mV
Measurement on single ended
signal using absolute value.
mV
Electrical Characteristics - PCICLK
T
A
= 0 - 70°C; VDD=3.3V +/-5%; C
L
= 10-30 pF (unless otherwise specified)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Output Impedance
R
DSP1
1
V
O
= V
DD
*(0.5) 12 33 55 W
Output High Voltage
V
OH
1
I
OH
= -1 mA 2.4 3.28 V
Output Low Voltage
V
OL
1
I
OL
= 1 mA 0.08 0.55 V
V
OH@MIN
= 1.0 V -33 -110
V
OH@MAX
= 3.135 V -20 -33 mA
V
OL @MIN
= 1.95 V 30 110
V
OL @MAX
= 0.4 V 37 38 mA
Rise Time
t
r1
1
V
OL
= 0.4 V, V
OH
= 2.4 V 0.5 1.28 2 ns
Fall Time
t
f1
1
V
OH
= 2.4 V, V
OL
= 0.4 V 0.5 1.37 2 ns
Duty Cycle d
t1
1
V
T
= 1.5 V 45 51.1 55 %
Skew
t
sk1
1
V
T
= 1.5 V 127 500 ps
Jitter,cycle to cyc t
jcyc-cyc
1
V
T
= 1.5 V 164 250 ps
1
Guaranteed by design, not 100% tested in production.
Output High Current
I
OH
1
Output Low Current
I
OL
1
