THM1 Series
TCXO
May 2005
• Pletronics’ Temperature Compensated quartz
crystal controlled precision square wave
generator with a CMOS output.
• Greatly reduces RFI and EMI system sensitivity
• Minimizes RFI radiation, eases meeting FCC
Class B emissions standards.
• Tube packaging.
• 10 to 40 MHz
• Full Size Thru-Hole DIP package
Pletronics Inc. certifies this device is in accordance with the
RoHS (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: 4.0 grams
Moisture Sensitivity Level: 1 As defined in J-STD-020C
Second Level Interconnect code: e1 or e2
Absolute Maximum Ratings:
Parameter
V
CC
Supply Voltage
Vo
Output Voltage
Unit
-0.5V to +5.5V
-0.5V to V
CC
+ 0.5V
Thermal Characteristics
The maximum die or junction temperature is 155
o
C
The thermal resistance junction to board is 120
o
C/Watt depends on the solder pads, ground plane and
construction of the PCB.
Product informatin is current as of publication date. The product conforms
to specifications per the terms of the Pletronics standard warranty. Production
processsing does not necesarily include testing of all parameters.
Copyright © 2005, Pletronics Inc.
THM1 Series
TCXO
May 2005
Part Number:
THM1 031
035
L
K
044
-20.0M
-XX
Internal code or blank
Frequency in MHz
Maximum F error from nominal
4.4ppm
Highest Specified Temperature
+85
o
C
Lowest Specified Temperature
-40
o
C
Highest Vcc
3.50V
Lowest Vcc
3.10V
Series Model
3
TH
K
L
fff.fff
M
Marking
Part Marking:
PLE
TH3LK44
20.00M
yywwaLF
Where:
yywwa
= Date code
LF = Lead Free
www.pletronics.com
425-776-1880
2
THM1 Series
TCXO
May 2005
Electrical Specification for 3.30V _5% over the specified temperature range
+
Item
Frequency
Frequency Stability
Long Term Frequency Stability
Output Waveform
Output High Level
Output Low Level
Output Symmetry
Output Rise and Fall Time
Phase Noise at Frequency Offset
1Hz
10Hz
100Hz
1KHz
10KHz
100KHz
Supply Current I
CC
Operating Temperature Range
Storage Temperature Range
Value
20.000
+4.4
_
+8.0
_
CMOS
90 min
10 max
40 to 60
5.0 max
-60
-90
-120
-130
-135
-140
20 max
-40 to +85
-55 to +125
%
%
%
nS
dBc/Hz
of V
CC
of V
CC
(See load circuit) C
LOAD
= 15pF +5%
_
(See load circuit) C
LOAD
= 15pF +5%
_
C
LOAD
= 15pF +5%
_
C
LOAD
= 15pF +5%
_
Unit
MHz
ppm
ppm
for all specified temperature, supply and load
variations
change in frequency for 15 years
Condition
at 50% point of V
CC
at 10% to 90% point of V
CC
mA
o
(See load circuit) C
LOAD
= 15pF +5%
_
C
C
o
PCB Mounting (typical for lead free processing)
Wave solder at 255
o
C to 280
o
C
Maximum wave exposure of 15 seconds
Soldering done in a nitrogen atmosphere enhances the solder joint quality.
Hand soldering is recommended.
www.pletronics.com
425-776-1880
3
THM1 Series
TCXO
May 2005
Load Circuit and Test Waveform
Vhigh
90% * Vcc
50% * Vcc
10% * Vcc
Vlow
Ground
Trise
Symmetry
Tfall
Reliability
: Environmental Compliance
Parameter
Mechanical Shock
Vibration
Solderability
Thermal Shock
Condition
MIL-STD-883 Method 2002, Condition A
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
T.B.D.
www.pletronics.com
425-776-1880
4
THM1 Series
TCXO
May 2005
Mechanical:
Inches
PLE
mm
22.53 _ 0.13
+
12.37 _ 0.13
+
10.16 max
3.81 min
0.51
0.79
2.37
7.62
15.24
2.37
A
B
C
D
1
E
1
F
1
0.887 _ 0.005
+
0.487 _ 0.005
+
0.400 max
0.150 min
0.020
0.031
0.094
0.300
0.600
0.094
1
Cover:
Kovar
Electroless Nickel Plated
1 µinch (25 µm) typical
Resistance welded to base
Label:
White Kapton with Black Letters
–or--
Blue Epoxy heat cure ink with laser
marked lettering
G
1
Base:
Kovar
Glass to metal sealed leads
Pin 7 Connected to case
Not to scale
H
1
I
1
J
1
Nominal dimension
Pad
1
7
8
14
Function
n.c.
Ground (GND)
Output
Supply Voltage
(V
CC
)
Note
No internal electrical connection
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.
www.pletronics.com
425-776-1880
5
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