ics9fg1901 Integrated Device Technology, ics9fg1901 Datasheet - Page 7

• Manufacturer Part Number: ics9fg1901
• Description: Frequency Generator For P4? ? ? ? ? Cpu, Pci Express? ? ? ? ? & Fully Buffered Dimm Clocks
• Manufacturer: Integrated Device Technology

0962E—01/02/07
1
2
3
Electrical Characteristics - DIF 0.7V Current Mode Differential Pair
T
Guaranteed by design and characterization, not 100% tested in production.
I
All Long Term Accuracy and Clock Period specifications are guaranteed assuming that the input frequency meets CK410 accuracy requirements
REF
Output-to-Output Skew - DIF(0:18)
A
Current Source Output Impedance
Output-to-Output Skew - DIF(0:16)
= 0 - 70°C; V
= V
DD
Crossing Voltage (abs)
Crossing Voltage (var)
Input-to-Output Delay
/(3xR
Absolute min period
Jitter, Cycle to cycle
Rise Time Variation
Fall Time Variation
Integrated
Circuit
Systems, Inc.
Average period
Long Accuracy
PARAMETER
Voltage High
Max Voltage
Voltage Low
Min Voltage
R
Duty Cycle
Rise Time
). For R
Fall Time
DD
= 3.3 V +/-5%; C
R
= 475Ω (1%), I
REF
L
= 2.32mA. I
=2pF, R
Vcross(abs)
SYMBOL
d-Vcross
Tperiod
VHigh
T
t
t
t
VLow
Vovs
Vuds
sk3_016
sk3_018
ppm
t
jcyc-cyc
t
Zo
absmin
pdbyp
d-t
d-t
d
pdpll
t
t
S
r
f
t3
=33.2Ω, R
1
OH
r
f
= 6 x I
Statistical measurement on single ended
Measurement from differential wavefrom
signal using oscilloscope math function.
V
REF
V
Measurement on single ended signal
T
T
Variation of crossing over all edges
P
= 50%, Skew across all outputs 1 to
and V
= 50%, Skew within Group of 17, 1
=49.9Ω, Ι
Bypass mode as additive jitter
see Tperiod min-max values
V
333.33MHz nominal/spread
266.66MHz nominal/spread
166.66MHz nominal/spread
133.33MHz nominal/spread
100.00MHz nominal/spread
V
from differential wavefrom
OL
400MHz nominal/spread
200MHz nominal/spread
OH
OH
using absolute value.
333.33MHz nominal
266.66MHz nominal
166.66MHz nominal
133.33MHz nominal
100.00MHz nominal
= 0.175V, V
333.33MHz spread
266.66MHz spread
166.66MHz spread
133.33MHz spread
100.00MHz spread
= 0.525V V
= 0.7V @ Z
400MHz nominal
200MHz nominal
400MHz spread
200MHz spread
to 1 mode only
CONDITIONS
Bypass Mode
1 mode only
PLL mode,
REF
PLL Mode
V
O
7
= 475Ω
= V
O
=50Ω.
OH
OL
x
= 0.175V
= 0.525V
2.4993
2.4993
2.9991
2.9991
3.7489
3.7489
4.9985
4.9985
5.9982
5.9982
7.4978
7.4978
9.9970
9.9970
2.4143
2.9141
3.6639
4.8735
5.8732
7.3728
9.8720
3000
-150
-300
-300
-500
MIN
660
250
175
175
2.5
45
TYP
50.5
750
400
425
200
3.6
20
15
75
40
25
10.0030
10.0533
2.5008
2.5133
3.0009
3.7511
5.0015
5.0266
6.0018
6.0320
7.5023
7.5400
3.016
1150
MAX
3.77
850
150
550
140
300
700
700
125
125
100
225
500
4.5
55
50
50
ICS9FG1901
UNITS
ppm
mV
mV
mV
mV
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ps
ps
ps
ps
ps
ps
ps
ns
ps
ps
%
Ω
NOTES
1,3
1,3
1,2
1,2
1,2
1,2
1,2
1,2
1,2
1,2
1
1
1
1
1
2
2
2
2
2
2
2
2
2
2
2
2
2
2
1
1
1
1
1
1
1
1
1
1
1