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参数资料
| 型号： | SM4445TX-FREQ-T500 |
| 厂商： | PLETRONICS INC |
| 元件分类： | XO, clock |
| 英文描述： | CRYSTAL OSCILLATOR, CLOCK, 0.8 MHz - 165 MHz, CMOS OUTPUT |
| 封装： | ROHS COMPLIANT, CERAMIC, LCC-4 |
| 文件页数： | 6/8页 |
| 文件大小： | 112K |
| 代理商： | SM4445TX-FREQ-T500 |
SM44T Series 1.8 V
CMOS Clock Oscillators
September 2008
www.pletronics.com
425-776-1880
6
3
4
2
1
Mechanical:
Inches
mm
A
0.125 +
_0.006
3.20 +
_0.15
B
0.098 +
_0.006
2.50 +
_0.15
C
0.041 +
_0.004
1.05 +
_0.10
D
1
0.008
0.20R
E
1
0.030
0.75
F
1
0.004
0.10
G
1
0.037
0.95
Not to Scale
1 Typical dimensions
Contacts :
Gold 11.8 inches
0.3 m minimum over Nickel 50 to 350 inches
1.27 to 8.89 m
Pad
Function
Note
1
Output
Enable/Disable
When this pad is not connected the oscillator shall operate.
When this pad is logic low the output will be inhibited (high impedance state.)
Recommend connecting this pad to V
CC if the oscillator is to be always on.
2
Ground (GND)
3
Output
4
Supply Voltage
(V
CC)
Recommend connecting appropriate power supply bypass capacitors as close as
possible.
Layout and application information
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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