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参数资料
| 型号： | SM7645HEW-FREQ-T250 |
| 厂商： | PLETRONICS INC |
| 元件分类： | XO, clock |
| 英文描述： | CRYSTAL OSCILLATOR, CLOCK, 0.8 MHz - 69.9 MHz, CMOS OUTPUT |
| 封装： | ROHS COMPLIANT, CERAMIC PACKAGE-4 |
| 文件页数： | 6/9页 |
| 文件大小： | 198K |
| 代理商： | SM7645HEW-FREQ-T250 |
SM76H Series 2.5 V
CMOS Clock Oscillators
March 2008
www.pletronics.com
425-776-1880
6
4
3
2
1
Mechanical:
Inches
mm
Label:
Laser marked on the ceramic
package metal cover
FR4 PCB Base:
Solder masked
All via holes tented on bottom
Copper Clad oz. Typical
Gold plated 0.02 μinch (0.5 μm)
Pin 3 Ground plane is typical
Not to scale
1 Typical dimension
A
0.324 +_0.003
8.23 +_0.07
B
0.356 +_0.005
9.04 +_0.13
C
0.135 +_0.005
3.43 +_0.13
D1
0.062
1.57
E1
0.050
1.27
F1
0.050
1.27
G1
0.059
1.50
H1
0.020
0.51
J1
0.040
1.02
K1
0.200
5.08
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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相关代理商/技术参数 |
参数描述 |
|---|---|
| SM7645HS | 制造商:PLETRONICS 制造商全称:Pletronics, Inc. 功能描述:CMOS with Enable/ Disable or Optional Stand By Mode (3.3 V) |
| SM7645HV | 制造商:PLETRONICS 制造商全称:Pletronics, Inc. 功能描述:CMOS with Enable/ Disable or Optional Stand By Mode (3.3 V) |
| SM7645HW | 制造商:PLETRONICS 制造商全称:Pletronics, Inc. 功能描述:2.5 V CMOS Clock Oscillators |
| SM7645HX | 制造商:PLETRONICS 制造商全称:Pletronics, Inc. 功能描述:CMOS with Enable/ Disable or Optional Stand By Mode (3.3 V) |
| SM7645HY | 制造商:PLETRONICS 制造商全称:Pletronics, Inc. 功能描述:CMOS with Enable/ Disable or Optional Stand By Mode (3.3 V) |
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