參數(shù)資料
型號(hào): PE8845DV-212.50M-T250
廠商: PLETRONICS INC
元件分類: XO, clock
英文描述: OSC 3.3V SMT 7X5 PECL
中文描述: CRYSTAL OSCILLATOR, CLOCK, 212.5 MHz, PECL OUTPUT
封裝: ROHS COMPLIANT, CERAMIC, LCC-6
文件頁數(shù): 6/8頁
文件大小: 102K
代理商: PE8845DV-212.50M-T250
PE88D Single Frequency
PECL Clock Oscillator
January 2011
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 to 39.4 inches (0.3 to 1.0 m)
over
Nickel 50 to 350 inches (1.27 to 8.89 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
No internal connection
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 positive Supply Voltage.
5
Output*
6
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:
place terminations at the end of the output lines.
a ground plane under the device
if capacitive coupling is used on the output, care in choosing component values must be used to
achieve good signal quality. Remember ECL/PECL outputs are driven by an emitter follower.
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.
相關(guān)PDF資料
PDF描述
PE8844DV-212.50M-T1K CRYSTAL OSCILLATOR, CLOCK, 212.5 MHz, PECL OUTPUT
PE8845DEV-106.25M-T500 CRYSTAL OSCILLATOR, CLOCK, 106.25 MHz, PECL OUTPUT
PE8820DV-212.50M-T1K CRYSTAL OSCILLATOR, CLOCK, 212.5 MHz, PECL OUTPUT
PE8845DEV-106.25M-T1K CRYSTAL OSCILLATOR, CLOCK, 106.25 MHz, PECL OUTPUT
PE8820DCV-212.50M-T250 CRYSTAL OSCILLATOR, CLOCK, 212.5 MHz, PECL OUTPUT
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