979
Typical Applications
PCS Base Stations
Land Mobile Radio
Cellular Telephony
Radio in the Local Loop
Test Equipment
TCXO
Features
3.3 Volt Supply
EFC Standard
Low Profile Standard Package
Hermetically Sealed Package
Surface Mount Options Available
Stratum III Option 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
979VAA
979VAB
979VAD
979VDB
979VDE
979VDF
979VBB
979VBC
979VBD
979VBE
979VCB
979VCD
979VCE
979VEB
979VED
979VEE
979VHAA
979VHAB
979VHAD
979VHDB
979VHDE
979VHDF
979VHBB
979VHBC
979VHBD
979VHBE
979VHCB
979VHCD
979VHCE
979VHEB
979VHED
979VHEE
Typical Phase Noise @ 10 MHz
Additional Parameters
Supply Voltage:
Current
Clipped Sinewave:
CMOS:
Aging:
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
0.5 to 3 Vdc
±
8 ppm min.
(others available)
Positive
> 10 kohms
1Hz Offset
10Hz Offset
100Hz Offset
1kHz Offset
10kHz Offset
<- 55 dBc / Hz
<-90 dBc / Hz
<-120 dBc / Hz
<-140dBc / Hz
<-150dBc / Hz
* Stratum III option of ±4.6 ppm total for all conditions over 20 years available.
Corning Frequency Control • Worldwide Databook 2001
2001-10-09
Corning Frequency Control Inc.
• 100 Watts Street • Mount Holly Springs, PA 17065, USA • Tel 1-717-486-3411 • Fax 1-717-486-5920 • www.corningfrequency.com
Corning Frequency Control GmbH & Co. KG
• Landstrasse D-74924 Neckarbischofsheim, Germany • Tel +49-7268-801-0 • Fax +49-07268-801-281 • www.corningfrequency.de
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979
Enclosures
TCXO
1
7
8
14
Pin Connections
Voltage Control or N/C
GND
RF Output
Supply Voltage
Dimensions: Inches (mm)
1
7
8
14
Pin Connections
EFC or N/C
GND/Case
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
979
Blank = No EFC
V= EVC Option
Typical P/N = 979VHAAT10
HAA
T = Through-hole
S = SMT
G = Gullwing
10M00000
Unless otherwise specified, any TCXO ordered without either
Mechanical or Electrical Trim capability shall have a frequency
calibration tolerance at Room Temperature of ± 2ppm and the
frequency stability tolerance over temperature will be from that
measured value.
Corning Frequency Control • Worldwide Databook 2001
2001-10-09
Corning Frequency Control Inc.
• 100 Watts Street • Mount Holly Springs, PA 17065, USA • Tel 1-717-486-3411 • Fax 1-717-486-5920 • www.corningfrequency.com
Corning Frequency Control GmbH & Co. KG
• Landstrasse D-74924 Neckarbischofsheim, Germany • Tel +49-7268-801-0 • Fax +49-07268-801-281 • www.corningfrequency.de
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