PE37T Series 3.3 V
PECL Clock Oscillators
January 2008
This device is obsolete, January 2008
This is replaced by the PE97xxDV device
For new designs use the PE99xxDV device
• Pletronics’ PE37T Series is a quartz crystal
controlled precision square wave generator with a
PECL output.
• FR4 base with a mechanical metal cover.
• Tape and Reel or cut tape packaging is available.
• 180 to 750 MHz
• 13.97mm x 9.90mm package
• Enable/Disable Function on pad 1 sets output
to a
fixed logic level (see PE11T for E/D on pad 2)
• Low Jitter
Pletronics Inc. certifies this device is in accordance with the
RoHS 6/6 (2002/95/EC) and WEEE (2002/96/EC) directives.
Pletronics Inc. guarantees the device does not contain the following:
Cadmium, Hexavalent Chromium, Lead, Mercury, PBB’s, PBDE’s
Weight of the Device: 1.33 grams
Moisture Sensitivity Level: 1 As defined in J-STD-020C
Second Level Interconnect code: e4
Absolute Maximum Ratings:
Parameter
V
CC
Supply Voltage
Vi
Vo
Io
Input Voltage
Output Voltage
Output Current
Unit
-0.5V to +8.0V
-0.5V to +6.0V
-0.5V to V
CC
+ 0.5V
+25 mA continuous
Thermal Characteristics
The maximum die or junction temperature is 155
o
C
The thermal resistance junction to board is 60 to 100
o
C/Watt depending on the solder pads, ground plane
and construction of the PCB.
Product information is current as of publication date. The product conforms
Copyright © 2006, 2007,2008 Pletronics
Inc.
to specifications per the terms of the Pletronics standard warranty. Production
processsing does not necessarily include testing of all parameters.
PE37T Series 3.3 V
PECL Clock Oscillators
January 2008
Part Number:
PE37
45
T
E
V
- 622.08M
-XX
Packaging code or blank
T250 = 250 per Tape and Reel
T500 = 500 per Tape and Reel
T1K = 1000 per Tape and Reel
Frequency in MHz
Supply Voltage V
CC
V
= 3.3V _ 10%
+
Optional Enhanced OTR
Blank
= Temp. range -10 to +70
o
C
E
= Temp. range -40 to +85
o
C
Series Model
Frequency Stability
45
= + 50 ppm
_
44
= + 25 ppm
_
20
= + 20 ppm
_
Series Model
Marking Legend:
PLE = Pletronics
FF.FFF
M = Frequency in MHz
YYWW or YWW or
YMD
= Date of Manufacture (year and week, or year-month-day)
All other marking is internal factory codes
Specifications such as frequency stability, supply voltage and operating temperature range, etc. are
not identified from the marking. External packaging labels and packing list will correctly identify the
ordered Pletronics part number.
Codes for Date Code YMD
Code
Year
Code
Month
Code
Day
Code
Day
Code
Day
1
1
D
13
T
25
6
2006
A
JAN
2
2
E
14
U
26
7
2007
B
FEB
3
3
F
15
V
27
8
2008
C
MAR
4
4
G
16
W
28
9
2009
D
APR
E
MAY
5
5
H
17
X
29
0
2010
F
JUN
6
6
J
18
Y
30
1
2011
G
JUL
7
7
K
19
Z
31
H
AUG
8
8
L
20
2
2012
J
SEP
9
9
M
21
K
OCT
A
10
N
22
L
NOV
B
11
P
23
M
DEC
C
12
R
24
Part Marking:
PLE
PE37T
FF.FFF
M
C
YMDXX
or
PE37Tx
FF.FFF
M
PLE xx
C
YYWWXX
www.pletronics.com
425-776-1880
2
PE37T Series 3.3 V
PECL Clock Oscillators
January 2008
Electrical Specification for 3.30V _10% over the specified temperature range
+
Item
Frequency Range
Frequency Accuracy “45"
“44"
“20"
Output Waveform
Output High Level
2.255
0.955
-1.045
Output Low Level
-
-
-
Output Symmetry
Jitter
45
-
-
Output T
RISE
and T
FALL
V
CC
Supply Current (I
CC
)
Enable/Disable Internal Pull-up
V disable
V enable
Enable time
Disable time
Start up time
Operating Temperature Range
-
-
15
-
2.40
-
-
-
-10
- 40
Storage Temperature Range
-55
Min
180
-50
-25
-20
Max
750
+50
+25
+20
PECL /ECL
-
-
-
1.745
0.445
-1.555
55
0.65
6.0
0.3
100
-
0.6
-
20
20
10
+70
+85
+125
volts
volts
volts
volts
volts
volts
%
pS RMS
pS RMS
nS
mA
Kohm
volts
volts
nS
nS
mS
o
Unit
MHz
ppm
Condition
For all supply voltages, load changes, aging for 1
year, shock, vibration and temperatures
Referenced to Ground, V
CC
= 3.30 V
Referenced to termination voltage
Referenced to Vcc
Referenced to Ground, V
CC
= 3.30 V
Referenced to termination voltage
Referenced to Vcc
at 50% point of V
CC
(See load circuit)
12 KHz to 20 MHz from the output frequency
10 Hz to 1 MHz from the output frequency
Vth is 20% and 80% of waveform
to V
CC
Referenced to pad 3
Referenced to pad 3
Time for output to reach a logic state
Time for Out = Logic High and Out* = logic low
Time for output to reach specified frequency
Standard Temperature Range
Extended Temperature Range
“E” Option
C
C
C
o
o
Specifications with Pad 1 E/D open circuit
www.pletronics.com
425-776-1880
3
PE37T Series 3.3 V
PECL Clock Oscillators
January 2008
Load Circuit
Test Waveform
Symmetry
Vhigh
80%
50%
20%
Vlow
Trise
Tfall
Out
Out*
Showing Out Measurement only
www.pletronics.com
425-776-1880
4
PE37T Series 3.3 V
PECL Clock Oscillators
January 2008
Reliability
: Environmental Compliance
Parameter
Mechanical Shock
Vibration
Solderability
Thermal Shock
Condition
MIL-STD-883 Method 2002, Condition B
MIL-STD-883 Method 2007, Condition A
MIL-STD-883 Method 2003
MIL-STD-883 Method 1011, Condition A
ESD Rating
Model
Human Body Model
Charged Device Model
Minimum Voltage
1500
1000
Conditions
MIL-STD-883 Method 3115
JESD 22-C101
Package Labeling
Label is 1" x 2.6" (25.4mm x 66.7mm)
Font is Courier New
Bar code is 39-Full ASCII
Label is 1" x 2.6" (25.4mm x 66.7mm)
Font is Arial
Layout and application information
Recommend connecting Pad 1 and Pad 2 together to permit the design to accept both Enable/Disable
input pad versions to be used (See PE11T for E/D on pad 2)
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.
www.pletronics.com
425-776-1880
5
PCB设计
