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參數(shù)資料
| 型號(hào)： | PE7644DEV-FREQ-T250 |
| 廠商： | PLETRONICS INC |
| 元件分類： | XO, clock |
| 英文描述： | CRYSTAL OSCILLATOR, CLOCK, 40 MHz - 250 MHz, PECL OUTPUT |
| 封裝： | ROHS COMPLIANT, PLASTIC, LCC-6 |
| 文件頁數(shù)： | 6/8頁 |
| 文件大?。?/td> | 116K |
| 代理商： | PE7644DEV-FREQ-T250 |
PE76D Series 3.3 V
PECL Clock Oscillators
January 2008
www.pletronics.com
425-776-1880
6
Mechanical:
Inches
mm
Cover:
Centered on the base
304 Stainless Steel
0.010 inch (0.25mm)
Electroless Nickel Plated
1 inch (25 m) typical
Label:
White Kapton with Black Letters
–or--
Blue Epoxy heat cure ink covering
top with laser marked lettering
FR4 PCB Base:
Solder masked
All via holes tented on bottom
Copper Clad 670 inch (17 m)
Nickel plated 118 inch (3 m)
Gold plated 0.8 inch (0.02 m)
Typical thicknesses
Pin 3 Ground plane is typical
Not to scale
A
0.351 +
_0.003
8.91 +
_0.07
B
0.356 +
_0.005
9.04 +
_0.13
C
0.103 +
_0.005
2.62 +
_0.13
D
1
0.324
8.23
E
1
0.316
8.03
F
1
0.050
1.27
G
1
0.040
1.02
H
1
0.059
1.50
I
1
0.020
0.51
J
1
0.040
1.02
K
1
0.100
2.54
L
1
0.026 typical
0.66
The package is not hermetically sealed (the crystal unit inside is hermetically sealed).
The sides are intentionally left open to permit cleaning material to freely flow in the package, thus
minimizing the accumulation of contaminants during cleaning processes.
The internal part of the package must be thoroughly dry before operating.
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.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PE7644DEW | 制造商:PLETRONICS 制造商全稱:Pletronics, Inc. 功能描述:PE76D / PE78D Series 2.5 V PECL Clock Oscillators |
| PE7644DV | 制造商:PLETRONICS 制造商全稱:Pletronics, Inc. 功能描述:PE76D Series 3.3 V PECL Clock Oscillators |
| PE7644DW | 制造商:PLETRONICS 制造商全稱:Pletronics, Inc. 功能描述:PE76D / PE78D Series 2.5 V PECL Clock Oscillators |
| PE7645DEV | 制造商:PLETRONICS 制造商全稱:Pletronics, Inc. 功能描述:PE76D Series 3.3 V PECL Clock Oscillators |
| PE7645DEW | 制造商:PLETRONICS 制造商全稱:Pletronics, Inc. 功能描述:PE76D / PE78D Series 2.5 V PECL Clock Oscillators |
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