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