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參數資料
| 型號： | ICS650-27 |
| 英文描述： | Networking Clock Source |
| 中文描述： | 網絡時鐘源 |
| 文件頁數： | 5/6頁 |
| 文件大?。?/td> | 99K |
| 代理商： | ICS650-27 |
Networking Clock Source
MDS 650-27 D
5
Revision 070505
Integrated Circuit Systems, Inc.
●
525 Race Street, San Jose, CA 95126
●
tel (408) 297-1201
●
www.icst.com
ICS650-27
DC Electrical Characteristics
Unless stated otherwise,
VDD = 3.3 V ±10%
, Ambient Temperature -40 to +85
°
C
Parameter
Symbol
AC Electrical Characteristics
Unless stated otherwise,
VDD = 3.3 V±10%
, Ambient Temperature -40 to +85
°
C
Parameter
Input Frequency
Note 1: Measured with 15 pF load
Thermal Characteristics
Conditions
Min.
Typ.
Max.
Units
Operating Voltage
VDD
3.0
3.3
3.6
V
Input High Voltage
V
IH
V
IL
V
IH
V
IL
V
IH
V
IL
V
OH
V
OL
V
OH
I
DD
I
OS
R
PU
X1 pin only, CLK input
VDD/2+1
VDD/2
V
Input Low Voltage
X1 pin only, CLK input
VDD/2
VDD/2-1
V
Input High Voltage
all tri-level type inputs
VDD-0.5
V
Input Low Voltage
all tri-level type inputs
0.5
V
Input High Voltage
all other inputs
2
V
Input Low Voltage
all other inputs
0.8
V
Output High Voltage
I
OH
= -25 mA
I
OL
= 25mA
I
OH
= -8 mA
No Load
2.4
V
Output Low Voltage
0.8
V
Output High Voltage, CMOS level
VDD-0.4
V
Operating Supply Current
50
mA
Short Circuit Current
Each output
±50
mA
k
k
Internal pull-up resistor
BCS1, OE pins
510
ACSI pin
120
Nominal output impedance
Z
OUT
20
Symbol
Conditions
Min.
10
Typ.
12.5 or
25
Max.
27
Units
MHz
Output Rise Time
Output Fall Time
Output Clock Duty Cycle
Frequency Error
Absolute Jitter, short term
t
OR
t
OF
0.8 to 2.0 V, Note 1
2.0 to 0.8 V, Note 1
At VDD/2, Note 1
All clocks
Variation from mean,
Note 1
1.5
1.5
60
0
ns
ns
%
ppm
ps
40
50
±150
Parameter
Symbol
θ
JA
θ
JA
θ
JA
θ
JC
Conditions
Min.
Typ.
Max.
Units
°
C/W
Thermal Resistance Junction to Ambient
Still air
135
1 m/s air flow
93
°
C/W
°
C/W
°
C/W
3 m/s air flow
78
Thermal Resistance Junction to Case
60
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