Product information is current as of publication date. The product conforms Copyright © 2010, Pletronics Inc.
to specifications per the terms of the Pletronics standard warranty. Production
processsing does not necessarily include testing of all parameters.
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 Unit
VCC Supply Voltage -0.5V to +6.5V
Vi Input Voltage -0.5V to VCC + 0.5V
Vo Output Voltage -0.5V to VCC + 0.5V
Thermal Characteristics
The maximum die or junction temperature is 155oC
The thermal resistance junction to board is 35 to 50oC/Watt depending on the solder pads, ground plane
and construction of the PCB.
ESD Rating
Model Minimum Voltage Conditions
Human Body Model 1500 MIL-STD-883 Method 3115
Charged Device Model 1000 JESD 22-C101
PCF4 Series
TCVCXO Oscillator
May 2010
www.pletronics.com 425-776-1880 2
P ff.ff M
C ymd x
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 = +40oCE = +60oCJ = +80oC
B = +45oCF = +65oC K = +85oC
C = +50oCG = +70oC
D = +55oCH = +75oC
Lowest Specified Operating Temperatu re
A = +10oCE = -10oCJ = -30oC
B = +5oCF = -15oC
C = +0oCG = -20oC
D = -5oCH = -25oC
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 = Pletronics
ff.ff = frequency in MHz .
ymd = Year Month Day
x = internal code
Codes for Date Code YMD
Code 01234
Code 123456789ABC
Year 2010 2011 2012 2013 2014 Month JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
Code 123456789ABCDEFG
Day 12345678910111213141516
Code H I J K L M N O P Q R S T U V
Day 171819202122232425262728293031
PCF4 Series
TCVCXO Oscillator
May 2010
www.pletronics.com 425-776-1880 3
Electrical Specification for specified Vsupply with a variation of ±5% over the
specified temperature range
Item Min Typ Max Unit Condition
Frequency Range 10 - 52 MHz
Frequency Accuracy Range 1 -2.5
-0.5 -+2.5
+0.5 ppm Vcontrol 1.50 volts if used
Frequency setting -2 0 +2 ppm Vcontrol 1.50 volts at 25oC
Frequency Stability vs. Supply -0.2 0 +0.2 ppm Load: 10K ohm // 10 pF & Vcc +_ 5%
Frequency Stability vs. Load -0.2 0 + 0.2 ppm Load: 10K ohm // 10 pF +_ 5%
Output Waveform Clipped Sinewave DC coupled
Output Level 0.8 - 1.1 V p-p Load: 10K ohm +_ 10% // 10 pF +_ 10%
Phase Noise 100 Hz
1 KHz
10 KHz
100 KHz
-
-
-
-
-110
-130
-145
-145
-
-
-
-
dBc/Hz
V Supply Range VCC 2.3 - 3.6 Volts
Supply Current ICC -2.03.0 mA
Aging -1.0 - +1.0 ppm Per year at 25oC
Vcontrol Range 0.5 - 2.50 Volts 1.50 volts nominal
Frequency Pullability 1- ±8 - ppm
Operating Temperature Range -30 +85 oC
Storage Temperature Range -55 +95 oC
1 Specified by part number
Reliability: Environmental Compliance
Parameter Condition
Mechanical Shock MIL-STD-883 Method 2002, Condition B
Vibration MIL-STD-883 Method 2007, Condition A
Solderability MIL-STD-883 Method 2003
Thermal Shock MIL-STD-883 Method 1011, Condition A
