參數(shù)資料
型號(hào): ICS951412YGLFT
英文描述: System Clock Chip for ATI RS480 K8-based Systems
中文描述: 系統(tǒng)時(shí)鐘芯片為ATI RS480基于K8系統(tǒng)
文件頁數(shù): 12/19頁
文件大小: 283K
代理商: ICS951412YGLFT
12
ICS951412
0883G—12/08/04
Electrical Characteristics - SRC 0.7V Current Mode Differential Pair
T
A
= 0 - 70°C; V
DD
= 3.3 V +/-5%; C
L
=2pF, R
S
=33.2
, R
P
=49.9
, Ι
REF
= 475
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
NOTES
Current Source Output
Impedance
Voltage High
Zo
V
O
= V
x
3000
1
VHigh
660
850
1,3
Voltage Low
Max Voltage
Min Voltage
VLow
Vovs
Vuds
-150
150
1150
1,3
1
1
-300
Crossing Voltage (abs) Vcross(abs)
250
350
550
mV
1
Crossing Voltage (var)
d-Vcross
Variation of crossing over all
edges
see Tperiod min-max values
75.00 MHz nominal
75.00 MHz spread
100.00 MHz nominal
100.00 MHz spread
116.67 MHz nominal
116.67 MHz spread
133.33 MHz nominal
133.33 MHz spread
@100.00MHz nominal/spread
V
OL
= 0.175V, V
OH
= 0.525V
V
OH
= 0.525V V
OL
= 0.175V
12
140
mV
1
Long Accuracy
ppm
-300
8.5684
8.5684
9.9970 10.0000 10.0030
9.9970
13.3303 13.3333 13.3363
13.3303
7.4972
7.5002
7.4972
9.8720
175
175
30
30
300
8.5744
8.6244
ppm
ns
ns
ns
ns
ns
ns
ns
ns
ns
ps
ps
ps
ps
1,2
2
2
2
2
2
2
2
2
1,2
1
1
1
1
8.5714
10.0530
13.3863
7.5032
7.5532
Absolute min period
Rise Time
Fall Time
Rise Time Variation
Fall Time Variation
Tabsmin
t
r
t
f
d-t
r
d-t
f
700
700
125
125
Duty Cycle
d
t3
Measurement from differential
wavefrom
Measurement from differential
wavefrom
Measurement from differential
wavefrom
45
55
%
1
Group Skew
t
src-skew
250
ps
Jitter, Cycle to cycle
t
jcyc-cyc
100
ps
1
1
Guaranteed by design and characterization, not 100% tested in production.
2
All Long Term Accuracy and Clock Period specifications are guaranteed assuming that REF is at 14.31818MHz
3
I
REF
= V
DD
/(3xR
R
). For R
R
= 475
(1%), I
REF
= 2.32mA. I
OH
= 6 x I
REF
and V
OH
= 0.7V @ Z
O
=50
.
Tperiod
Average period
mV
Measurement on single ended
signal using absolute value.
mV
Statistical measurement on
single ended signal using
oscilloscope math function.
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