CCO250
TCXO
Corning Frequency Control • Worldwide Data Book 2001 v1.0.2000-11-01
Corning Frequency Control Inc. • 100 Watts Street • Mt. Holly Springs, PA 17065 • Tel 1-717-486-3411 • Fax 1-717-486-5920 • www.corningfrequency.com
Tele Quarz GmbH & Co. KG • Landstrasse • D-74924 Neckarbischofsheim, Germany • Tel +49-7268-801-0 • Fax +49-07268-801-281 • www.telequarz.de
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Typical Applications Features
SDH/SONET Meets Stratum III Overall Stability
ATM Mechanical Control (internal Trimmer)
WLL EFC Optional
Measurement Equipment Wide Frequency Range
Very Low Aging
Frequency Range 8MHz – 80MHz
Standard Frequencies 19.44; 38.88; 77.76MHz
Frequency stabilities
Parameter Frequency stability Operating temp range
vs. Operating temperature range < ± 0.8 ppm -20 ... +70°C
Parameter Value Condition
Initial tolerance
vs. Supply voltage change
vs. Load change
vs. Aging / 15 years
< ± 1.0 ppm
< ± 0.1 ppm
< ± 0.1 ppm
< ± 2.5 ppm
@ 25 °C
VS ± 5%
Load ± 10%
Overall tolerance 15 years < ± 4.6 ppm
Frequency tuning
Parameter Option I Value Condition
Mechanical (No EFC) Blank > ± 5.0 ppm (internal trimmer)
Electrical freq. control (EFC) > ± 5.0 ppm Note 1
Voltage range (Vc) U0 to 2.0 V @ VS=5.0 V
Pulling slope negativ
Freq. control input impedance >10 k Ω
RF output
Parameter Value Condition
Signal HCMOS
Load 25pF ± 10%
Duty cycle 40/60% @ Vs/2
Subharmonics < -45dBc > 26 MHz
Supply voltage
Parameter Value Condition
Supply voltage (VS)5.0 V ± 5%
Current consumption < 50 mA
Additional parameters
Parameter Value Condition
Phase Noise <- 90 dBc 10 Hz Note 2
<-120 dBc 100 Hz
<-140 dBc 1kHz
<-145 dBc 10 kHz
<-150 dBc 100 kHz
Weight < 20 g
Operable temperature range -30 ... +80°C
Storage temperature range -55 ... +105°C
Processing & Packing handling&processing note
CCO250
TCXO
Corning Frequency Control • Worldwide Data Book 2001 v1.0.2000-11-01
Corning Frequency Control Inc. • 100 Watts Street • Mt. Holly Springs, PA 17065 • Tel 1-717-486-3411 • Fax 1-717-486-5920 • www.corningfrequency.com
Tele Quarz GmbH & Co. KG • Landstrasse • D-74924 Neckarbischofsheim, Germany • Tel +49-7268-801-0 • Fax +49-07268-801-281 • www.telequarz.de
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Enclosure
Type G157A
Drawing
27,2max.
17,8
15,24
H
4,5min.
ø0,8
36,1max.
25,4
17,78
0,6max.
±0,2
±0,5
±0,5
±0,2
3,0
9,0
option
3
2
15
4
H = 12,2 max.; G157 A
G157
all units in mm
Pin Connections
Pin 1Voltage Control (Vc) Option U Electrical frequency Control
Pin 1N.C. Blank Mechanical frequency Control
Pin 2N.C.
Pin 3Supply Voltage (Vs)
Pin 4RF output
Pin 5GND, case
Ordering Code Option I
Model Frequency tuning Frequency
Example: CCO250 19M440
Order: CCO250
Notes
1Others available
2Typical values @ 19.44 MHz
Unless otherwise stated all values are valid after warm-up time and refer to typical conditions for supply voltage,
frequency control voltage, load, temperature (25°C)
Subject to technical modification; Not all options are available at all Frequencies
