978 TCXO
Corning Frequency Control • Worldwide Data Book 2001 v1.1.2001-04-17
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
PCS Base Stations
3.3 Volt Supply
Land Mobile Radio
Low Profile Package
Cellular Telephony
Standard 4-Pin DIP Package
Radio in the Local Loop
Mechanical Control, EFC Optional
Test Equipment
High Stability
Avionics
Surface Mount Options Available
Frequency Range 1 MHz – 30 MHz
Parameters Model Numbers
Operating
Temperature Range
Frequency Stability
(ppm) Clipped Sine Wave
(1 Vpp min. into 1kΩ)
Square Wave
(CMOS)
0....50°C ± 0.5 ppm
± 1.0 ppm
± 2.0 ppm
978AA
978AB
978AD
978HAA
978HAB
978HAD
0.....70°C ± 1.0 ppm
± 2.5 ppm
± 5.0 ppm
978DB
978DE
978DF
978HDB
978HDE
978HDF
-20....+70°C ± 1.0 ppm
± 1.5 ppm
± 2.0 ppm
± 2.5 ppm
978BB
978BC
978BD
978BE
978HBB
978HBC
978HBD
978HBE
-30....+70°C ± 1.0 ppm
± 2.0 ppm
± 2.5 ppm
978CB
978CD
978CE
978HCB
978HCD
978HCE
-40....+85°C ± 1.0 ppm
± 2.0 ppm
± 2.5 ppm
978EB
978ED
978EE
978HEB
978HED
978HEE
Note: Model 978 custom versions available with output waveforms of ACMOS, SINE, ECL & PECL
Additional Parameters Typical Phase Noise @ 10 MHz
Supply Voltage: +3.3 Vdc ± 5% 1Hz Offset <- 55 dBc / Hz
Current 10Hz Offset <-90 dBc / Hz
Clipped Sinewave: 2 mA to 6 mA 100Hz Offset <-120 dBc / Hz
CMOS: 5 mA to 20 mA 1kHz Offset <-140dBc / Hz
Aging: ± 1 ppm/year 10kHz Offset <-150dBc / Hz
Mechanical Frequency
Control: ± 3 ppm min.
Electrical Frequency
Control
Voltage Range: 0 to 3 Vdc
Deviation: ± 8 ppm min.
(others available)
Slope: Positive
Input Impedance: > 10 kohms
978 TCXO
Corning Frequency Control • Worldwide Data Book 2001 v1.1.2001-04-17
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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Enclosures
Pin Connections Pin Connections Pin Connections
1 EFC or N/C 1 EFC or N/C 1 EFC when specified
7 GND 7 GND 7 GND
8 RF Output 8 RF Output 8 RF Output
14 Supply Voltage 14 Supply Voltage 14 Supply Voltage
Dimensions: Inches (mm) Dimensions: Inches (mm) Dimensions: Inches (mm)
Model EFC Waveshape
Freq. Stab.
Temp. Range
Package
Code Frequency
978 Blank = No EFC
V= EVC Option HAA T = Through-hole
S = SMT
G = Gullwing 10M00000
* Typical P/N = 978VHAAT10 Note: Package is non-hermetic
