參數(shù)資料
型號(hào)： ASM3I2508SPF-08ST
廠商： ALLIANCE SEMICONDUCTOR CORP
元件分類： XO, clock
英文描述： Clock Synthesizer and Frequency Generator with Peak EMI reduction
中文描述： 33.33 MHz, OTHER CLOCK GENERATOR, PDSO8
封裝： 0.150 INCH, LEAD FREE, SOIC-8
文件頁(yè)數(shù)： 3/7頁(yè)
文件大?。?/td> 303K
代理商： ASM3I2508SPF-08ST
February 2005
rev 0.4
DC Electrical Characteristics
(Test condition: All parameters are measured at room temperature (+25°C) unless otherwise stated)
Symbol
Parameter
V
IL
Input low voltage
ASM3P2508SP
Clock Synthesizer and Frequency Generator with Peak EMI reduction
3 of 7
Notice: The information in this document is subject to change without notice.
Min
V
SS
- 0.3
Typ
–
Max
0.8
Unit
V
V
IH
Input high voltage
2.0
–
V
DD
+ 0.3
V
I
IL
Input low current
–
–
-35
μA
I
IH
Input high current
–
–
35
μA
I
XOL
XOUT output low current (@0.4V, V
DD
=3.3V)
–
3
–
mA
I
XOH
XOUT output high current (@2.5V, V
DD
=3.3V)
–
3
–
mA
V
OL
Output low voltage (V
DD
= 3.3 V, I
OL
= 20 mA)
–
–
0.4
V
V
OH
Output high voltage (V
DD
= 3.3 V, I
OH
= 20 mA)
2.5
–
–
V
I
DD
Static supply current *
Dynamic supply current
(3.3V, 33.33MHz, 25MHz , 20MHz and 15pF loading)
Operating voltage
–
–
10
μA
I
CC
–
20
_
mA
V
DD
3.0
3.3
3.6
V
t
ON
Power-up time (first locked cycle after power up)**
–
–
5
mS
Z
OUT
Clock output impedance
–
50
–
* PWRDNB pin is pulled low
** V
DD
and XIN/CLKIN input are stable, PWRDNB pin is made high from low.
AC Electrical Characteristics
Symbol
Parameter
Min
Typ
Max
Unit
XIN
Input frequency
–
25
–
MHz
PCI_CLK
–
33.33
–
MHz
T1_CLK
24.999375
25
25.000625
Sys_REF_CLK
Output frequency
–
20
–
MHz
Modulation Rate
Deviation
Output rise time (measured at 0.8V to 2.0V)
–
–
0.7
30
-0.5
0.9
–
–
1.0
KHz
%
nS
PCI_CLK (SSCG)
t
LH
*
t
HL
*
Output fall time (measured at 2.0V to 0.8V)
0.6
0.8
1.0
nS
t
JC
Jitter (cycle to cycle)
–
150
175
pS
t
D
Output duty cycle
45
50
55
%
* t
LH
and t
HL
are measured into a capacitive load of 15pF
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