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參數(shù)資料
| 型號： | PE7745DEW-125.0MT500 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | 2.5 V PECL Clock Oscillators |
| 中文描述： | 2.5伏PECL的時鐘振蕩器 |
| 文件頁數(shù)： | 6/8頁 |
| 文件大?。?/td> | 162K |
| 代理商： | PE7745DEW-125.0MT500 |
PE77D Series 2.5 V
PECL Clock Oscillators
October 2006
www.pletronics.com 425-776-1880
6
Mechanical:
Inches
mm
A
0.276 +0.006
7.00 +0.15
B
0.197 +0.006
5.00 +0.15
C
0.067 max
1.70 max
D
1
0.038
0.96
E
1
0.200
5.08
F
1
0.004
0.10
G
1
0.050
1.27
H
1
0.055
1.40
Contacts
:
Gold 11.8
μ
inches 0.3
μ
m minimum over
Nickel 50 to 350
μ
inches 1.27 to 8.89
μ
m
1
Typical dimensions
Not to Scale
I
1
0.024
0.60
J
1
0.004R
0.10R
K
1
0.008R
0.20R
Pad
Function
Note
1
Output
Enable/Disable
When this pad is not connected the oscillator shall operate.
When this pad is <0.30 volts, the output will be inhibited (high impedance state.)
Recommend connecting this pad to V
CC
if the oscillator is to be always on.
2
No connect
There is no internal connection to this pad
3
Ground (GND)
4
Output
Both outputs must be terminated and biased for proper operation. The ideal
termination is 50 ohms connected to 2.0V below the Supply Voltage.
5
Output*
6
Supply Voltage
(V
CC
)
Recommend connecting appropriate power supply bypass capacitors as close as
possible.
Layout and application information
Recommend connecting Pad 1 and Pad 2 together to permit the design to accept Enable/Disable input on
either pad
For Optimum Jitter Performance, Pletronics recommends:
a ground plane under the device
no large transient signals (both current and voltage) should be routed under the device
do not layout near a large magnetic field such as a high frequency switching power supply
do not place near piezoelectric buzzers or mechanical fans.
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