978
TCXO
Typical Applications
PCS Base Stations
Land Mobile Radio
Cellular Telephony
Radio in the Local Loop
Test Equipment
Features
3.3 Volt Supply
Low Profile Package
Standard 4-Pin DIP Package
Mechanical Control, EFC Optional
High Stability
Avionics
Surface Mount Options Available
Frequency Range
Parameters
1 MHz – 30 MHz
Model Numbers
Clipped Sine Wave
Operating
Frequency Stability
Square Wave
Temperature Range
(ppm)
(CMOS)
978HAA
978HAB
978HAD
(1 Vpp min. into 1kΩ)
0....50°C
978AA
978AB
978AD
± 0.5 ppm
± 1.0 ppm
± 2.0 ppm
± 1.0 ppm
± 2.5 ppm
± 5.0 ppm
± 1.0 ppm
± 1.5 ppm
± 2.0 ppm
± 2.5 ppm
± 1.0 ppm
± 2.0 ppm
± 2.5 ppm
± 1.0 ppm
± 2.0 ppm
± 2.5 ppm
0.....70°C
978DB
978DE
978DF
978HDB
978HDE
978HDF
-20....+70°C
978BB
978BC
978BD
978BE
978HBB
978HBC
978HBD
978HBE
-30....+70°C
-40....+85°C
978CB
978CD
978CE
978HCB
978HCD
978HCE
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:
Current
Clipped Sinewave:
CMOS:
Aging:
Mechanical Frequency
Control:
1Hz Offset
10Hz Offset
100Hz Offset
1kHz Offset
10kHz Offset
<- 55 dBc / Hz
<-90 dBc / Hz
<-120 dBc / Hz
<-140dBc / Hz
<-150dBc / Hz
+3.3 Vdc ± 5%
2 mA to 6 mA
5 mA to 20 mA
± 1 ppm/year
± 3 ppm min.
Electrical Frequency
Control
Voltage Range:
Deviation:
0 to 3 Vdc
± 8 ppm min.
(others available)
Positive
Slope:
Input Impedance:
> 10 kohms
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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