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ASM2I9940L-32-LR Datasheet(PDF) 6 Page - Alliance Semiconductor Corporation

Part # ASM2I9940L-32-LR
Description  Low Voltage 1:18 Clock Distribution Chip
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Manufacturer  ALSC [Alliance Semiconductor Corporation]
Direct Link  https://www.alliancememory.com
Logo ALSC - Alliance Semiconductor Corporation

ASM2I9940L-32-LR Datasheet(HTML) 6 Page - Alliance Semiconductor Corporation

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June 2005
ASM2I9940L
rev 1.0
Low Voltage 1:18 Clock Distribution Chip
6 of 13
Notice: The information in this document is subject to change without notice.
Table 9. DC Characteristics (T
A = 0° to 70°C, VCCI = 2.5V ± 5%, VCCO = 2.5V ± 5%)
Symbol
Characteristic
Min
Typ
Max
Unit
Condition
VIH
Input HIGH Voltage
CMOS_CLK
2.4
VCCI
V
VIL
Input LOW Voltage
CMOS_CLK
0.8
V
VPP
Peak–to–Peak Input
Voltage
PECL_CLK
500
1000
mV
VCMR
Common Mode Range
PECL_CLK
VCC–1.0
VCC–0.6
V
VOH
Output HIGH Voltage
1.8
V
IOH = –20mA
VOL
Output LOW Voltage
0.5
V
IOH = 20mA
IIN
Input Current
±200
µA
CIN
Input Capacitance
4.0
pF
Cpd
Power Dissipation Capacitance
10
pF
per output
ZOUT
Output Impedance
18
23
28
ICC
Maximum Quiescent Supply Current
0.5
1.0
mA
Table 10. AC Characteristics (T
A = 0° to 70°C, VCCI = 2.5V ± 5%, VCCO = 2.5V ± 5%)
Symbol
Characteristic
Min
Typ Max
Unit
Condition
Fmax
Maximum Input Frequency
200
MHz
tPLH
Propagation Delay
PECL_CLK < 150MHz
CMOS_CLK < 150MHz
2.6
2.3
4.0
3.1
5.2
4.0
nS
Note
1.
tPLH
Propagation Delay
PECL_CLK > 150MHz
CMOS_CLK > 150MHz
2.8
2.3
3.8
3.1
5.0
4.0
nS
tsk(o)
Output-to-output Skew
Within one bank
PECL_CLK
CMOS_CLK
200
200
pS
Note
1.
tsk(pp)
Part–to–Part Skew
PECL_CLK < 150MHz
CMOS_CLK < 150MHz
2.6
1.7
nS
Notes
1,2
tsk(pp)
Part–to–Part Skew
PECL_CLK > 150MHz
CMOS_CLK > 150MHz
2.2
1.7
nS
Notes
1,2
tsk(pp)
Part–to–Part Skew
PECL_CLK
CMOS_CLK
1.2
1.0
nS
Notes
1,3
DC
Output Duty Cycle
fCLK < 134 MHz
fCLK <250 MHz
45
40
50
50
55
60
%
%
Input DC = 50%
Input DC = 50%
tr, tf
Output Rise/Fall Time
0.3
1.2
nS
0.5 – 1.8 V
Note: 1. Tested using standard input levels, Production tested @ 150MHz.
2. Across temperature and voltage ranges, includes output skew.
3. For a specific temperature and voltage, includes output skew.


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