PCF4 Series
TCVCXO Oscillator
May 2010
• Pletronics’ PCF4 Series is a temperature
compensated voltage controlled crystal
oscillator with a clipped sinewave output.
• The package is designed for high density
surface mount designs.
• Tape and Reel packaging is available.
•
•
•
•
10 to 52 MHz
2.3V to 3.6V
2.0 x 2.5 mm LCC Ceramic Package
Optional Voltage Control Function
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: 0.07 grams
Moisture Sensitivity Level: 1 As defined in J-STD-020D.1
Second Level Interconnect code: e4
Absolute Maximum Ratings:
Parameter
V
CC
Supply Voltage
Vi
Vo
Input Voltage
Output Voltage
Unit
-0.5V to +6.5V
-0.5V to V
CC
+ 0.5V
-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 35 to 50
o
C/Watt depending on the solder pads, ground plane
and construction of the PCB.
ESD Rating
Model
Human Body Model
Charged Device Model
Minimum Voltage
1500
1000
Conditions
MIL-STD-883 Method 3115
JESD 22-C101
Product information is current as of publication date. The product conforms
to specifications per the terms of the Pletronics standard warranty. Production
processsing does not necessarily include testing of all parameters.
Copyright © 2010, Pletronics Inc.
PCF4 Series
TCVCXO Oscillator
May 2010
Part Number:
PCF4
031
035
G
H
015
008
-12.75M
-XX
Internal code or blank
Nominal Frequency in MHz
Pullability in ppm (Vcontrol)
(xxx in ppm)
000
= TCXO only
008
= + 8 ppm minimum
_
Example
Stability in ppm
(ppm = xxx / 10) Examples are:
005
= + 0.5 ppm
_
025
= + 2.5 ppm
_
010
= + 1 ppm
_
015
= + 1.5 ppm
_
Highest Specified Operating Temperature
A
= +40
o
C
E
= +60
o
C
J
= +80
o
C
B
= +45
o
C
F
= +65
o
C
K
= +85
o
C
C
= +50
o
C
G
= +70
o
C
D
= +55
o
C
H
= +75
o
C
Lowest Specified Operating Temperature
A
= +10
o
C
E
= -10
o
C
J
= -30
o
C
o
o
F
= -15 C
B
= +5 C
G
= -20
o
C
C
= +0
o
C
H
= -25
o
C
D
= -5
o
C
Highest Supply Voltage *
(xxx / 10)
035
= 3.5 volts for 3.3 volts nominal
031
= 3.1 volts for 3.0 volts nominal
026
= 2.6 volts for 2.5 volts nominal
Lowest Supply Voltage
* (xxx / 10)
031
= 3.1 volts for 3.3 volts nominal
029
= 2.9 volts for 3.0 volts nominal
024
= 2.4 volts for 2.5 volts nominal
Series (Part Type, Logic & Package)
*
Supply Voltage: Select range between 2.7V and 3.3V with Highest / Lowest < 1.10
For Example: the part number for 3.3V nominal would be PCF4032034.........
Part Marking:
P
ff.ff
M
C
ymd x
P
=
ff.ff
=
ymd
=
x
=
Pletronics
frequency in MHz .
Year Month Day
internal code
Codes for Date Code YMD
Code
Code
0
1
2
3
4
1
2
3
4
5
6
7
8
9
A
B
C
Year
2010 2011 2012 2013 2014
Month
JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
Code
Day
Code
Day
1
1
H
17
2
2
I
18
3
3
J
19
4
4
K
20
5
5
L
21
6
6
M
22
7
7
N
23
8
8
O
24
9
9
P
25
A
10
Q
26
B
11
R
27
C
12
S
28
D
13
T
29
E
14
U
30
F
15
V
31
G
16
www.pletronics.com
425-776-1880
2
PCF4 Series
TCVCXO Oscillator
May 2010
Electrical Specification for specified Vsupply with a variation of ±5% over the
specified temperature range
Item
Frequency Range
Frequency Accuracy Range
1
Frequency setting
Frequency Stability vs. Supply
Frequency Stability vs. Load
Output Waveform
Output Level
Phase Noise
100 Hz
1 KHz
10 KHz
100 KHz
V
CC
I
CC
0.8
-
-
-
-
2.3
-
-1.0
0.5
-
-30
-55
Min
10
-2.5
-0.5
-2
-0.2
-0.2
Typ
-
-
0
0
0
Max
52
+2.5
+0.5
+2
+0.2
+0.2
Unit
MHz
ppm
ppm
ppm
ppm
Vcontrol 1.50 volts if used
Vcontrol 1.50 volts at 25
o
C
Load: 10K ohm // 10 pF & Vcc + 5%
_
Load: 10K ohm // 10 pF + 5%
_
DC coupled
Load: 10K ohm + 10% // 10 pF + 10%
_
_
Condition
Clipped Sinewave
-
-110
-130
-145
-145
-
2.0
-
-
±8
1.1
-
-
-
-
3.6
3.0
+1.0
2.50
-
+85
+95
V p-p
dBc/Hz
V Supply Range
Supply Current
Aging
Vcontrol Range
Volts
mA
ppm
Volts
ppm
o
Per year at 25
o
C
1.50 volts nominal
Frequency Pullability
1
Operating Temperature Range
Storage Temperature Range
C
C
o
1
Specified by part number
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
www.pletronics.com
425-776-1880
3
PCF4 Series
TCVCXO Oscillator
May 2010
Package Labeling
Label is 1" x 2.6" (25.4mm x 66.7mm)
Font is Courier New
Bar code is 39-Full ASCII
(the label will show the PCF4 actual part number)
Label is 1" x 2.6" (25.4mm x 66.7mm)
Font is Arial
Mechanical:
Inches
A
0.100 +0.004
_
0.081 +0.004
_
0.040 max
0.020
0.094
0.053
0.074
0.027
0.008
mm
2.55 +0.10
_
2.05 +0.10
_
1.0 max
0.50
2.39
1.35
1.89
0.68
0.020R
4
1
B
C
6
5
D
1
E
1
3
1
2
F
1
G
1
Not to Scale
Contacts: Gold 11.8 µinches 0.3 µm minimum
over Nickel 50 to 350 µinches 1.27 to 8.89 µm
Typical dimensions
H
1
J
1
Pad
1
2
3
4
5
6
Function
Vcontrol Input
Ground (GND)
Output
Supply Voltage (V
CC
)
N.C.
N.C.
Note
If this function is not specified, recommend connecting this pad to ground.
Output is DC coupled, a 1nF AC coupling capacitor is recommended.
Recommend connecting appropriate power supply bypass capacitors as close
as possible.
Internally connected test terminals. Do not connect to these pads.
Placing solder resist to cover all areas except pads 1 through 4 is
recommended
www.pletronics.com
425-776-1880
4
PCF4 Series
TCVCXO Oscillator
May 2010
Reflow Cycle (typical for lead free processing)
Temperature (°C)
250
200
150
100
175°C±10°C
260°C Maximum
10 Seconds Maximum
215°C±10°C
120 to 160 Seconds
Approximately 50 Seconds
Allowed rate of temperature change
Maximum 4°C per second
The part may be reflowed 2 times without degradation.
Tape and Reel: available for quantities of 250 to 1000 per reel, cut tape for < 250
Constant Dimensions Table 1
Tape
Size
8mm
12mm
16mm
24mm
1.5
+0.1
-0.0
D1
Min
1.0
1.5
1.5
1.5
1.75
_0.1
+
4.0
0.6
_0.1
+
2.0
_0.1
+
0.6
0.1
S1
Min
T
Max
T1
Max
D0
E1
P0
P2
2.0
_
+0.05
Variable Dimensions Table 2
Tape
Size
16 mm
B1
Max
12.1
E2 Min
F
P1
T2
Max
8.0
W
Max
16.3
Ao, Bo &
Ko
Note 1
Not to scale
14.25
7.5 _0.1
+
8.0 +0.1
_
Note 1: Embossed cavity to conform to EIA-481-B
Dimensions in mm
REEL DIMENSIONS
A
inches
mm
B
inches
mm
C
D
mm
mm
16.4
+2.0
-0.0
7.0
177.8
2.50
63.5
10.0
254.0
4.00
101.6
13.0 +0.5 / -0.2
16.4
+2.0
-0.0
16.4
+2.0
-0.0
16.0
13.0
330.2
3.75
95.3
Tape
Width
Reel dimensions may vary from the above
www.pletronics.com
425-776-1880
5
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