參數(shù)資料
型號(hào): ICS954119
英文描述: Programmable Timing Control Hub⑩ for Next Gen P4⑩ processor
中文描述: 可編程定時(shí)控制中心⑩處理器的下一代?、?/td>
文件頁數(shù): 15/17頁
文件大?。?/td> 217K
代理商: ICS954119
15
Integrated
Circuit
Systems, Inc.
ICS954119
Advance Information
0875—05/24/04
Electrical Characteristics - 48MHz/USB48MHz/24_48MHz
PARAMETER
SYMBOL
Long Accuracy
ppm
Clock period
T
period
Output Impedance
R
DSP
Output High Voltage
V
OH
Output Low Voltage
V
OL
CONDITIONS*
see Tperiod min-max values
48.00MHz output nominal
V
O
= V
DD
*(0.5)
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/Falling edge rate
MIN
-100
20.8313
12
2.4
TYP
MAX
100
20.8354
55
UNITS
ppm
ns
V
V
mA
mA
mA
mA
V/ns
NOTES
1
1
1
1
1
1
1
1
1
0.55
-33
-33
30
38
4
Edge Rate
t
slewr/f
1
Edge Rate
t
slewr/f_USB
USB48 Rising/Falling edge rate
1
2
V/ns
1
Rise Time
Fall Time
Rise Time
Fall Time
Duty Cycle
Jitter, Cycle to cycle
*TA = 0 - 70°C; Supply Voltage VDD = 3.3 V +/-5%, CL = 20 pF with Rs = 7
(Rs is used in USB48MHz test only)
1
Guaranteed by design and characterization, not 100% tested in production.
Electrical Characteristics - DOT_96MHz 0.7V Current Mode Differential Pair
PARAMETER
SYMBOL
CONDITIONS*
Current Source Output
Impedance
Voltage High
VHigh
Voltage Low
VLow
Max Voltage
Vovs
Min Voltage
Vuds
Crossing Voltage (abs)
Vx(abs)
Variation of crossing over all
t
r
t
f
V
OL
= 0.4 V, V
OH
= 2.4 V
V
OH
= 2.4 V, V
OL
= 0.4 V
V
OL
= 0.4 V, V
OH
= 2.4 V
V
OH
= 2.4 V, V
OL
= 0.4 V
V
T
= 1.5 V
V
T
= 1.5 V
0.5
0.5
1
1
45
2
2
2
2
55
500
ns
ns
ns
ns
%
ps
1
1
1
1
1
1
t
r_USB
t
f_USB
d
t1
t
jcyc-cyc
Output High Current
I
OH
Output Low Current
I
OL
MIN
TYP
MAX
UNITS
Notes
Zo
V
O
= V
x
3000
1
660
-150
850
150
1150
mV
mV
mV
mV
mV
1,3
1,3
1
1
1
-300
250
550
Crossing Voltage (var)
d-Vcross
edges
140
mV
1
Long Accuracy
Average period
Absolute min period
Rise Time
Fall Time
Rise Time Variation
Fall Time Variation
ppm
Tperiod
Tabsmin
t
r
t
f
d-t
r
d-t
f
see Tperiod min-max values
96.00MHz nominal
96.00MHz nominal
V
OL
= 0.175V, V
OH
= 0.525V
V
OH
= 0.525V V
OL
= 0.175V
V
OL
= 0.175V, V
OH
= 0.525V
V
OH
= 0.525V V
OL
= 0.175V
Measurement from differential
wavefrom
Measurement from differential
wavefrom
-100
10.4135
10.1635
175
175
100
ppm
ns
ns
ps
ps
ps
ps
1,2
2
1,2
1
1
1
1
10.4198
700
700
125
125
Duty Cycle
d
t3
45
55
%
1
Jitter, Cycle to cycle
t
jcyc-cyc
250
ps
1
*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
1
Guaranteed by design and characterization, not 100% tested in production.
2
All Long Term Accuracy and Clock Period specifications are guaranteed assuming that REFOUT 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
.
Measurement on single ended
signal using absolute value.
Statistical measurement on
single ended signal
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