979 TCXO
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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Typical Applications Features
PCS Base Stations 3.3 Volt Supply
Land Mobile Radio EFC Standard
Cellular Telephony Low Profile Standard Package
Radio in the Local Loop Hermetically Sealed Package
Test Equipment Surface Mount Options Available
Stratum III Option Available
Frequency Range 1MHz–30MHz
Parameters Model Numbers
Operating
Temperature Range Frequency Stability *
(ppm)
Clipped Sine Wave
(1Vppmin.into1kΩ)
Square Wave
(CMOS)
0....50°C ±0.5 ppm
±1.0 ppm
±2.0 ppm
979VAA
979VAB
979VAD
979VHAA
979VHAB
979VHAD
0.....70°C ±1.0 ppm
±2.5 ppm
±5.0 ppm
979VDB
979VDE
979VDF
979VHDB
979VHDE
979VHDF
-20....+70°C ±1.0 ppm
±1.5 ppm
±2.0 ppm
±2.5 ppm
979VBB
979VBC
979VBD
979VBE
979VHBB
979VHBC
979VHBD
979VHBE
-30....+70°C ±1.0 ppm
±2.0 ppm
±2.5 ppm
979VCB
979VCD
979VCE
979VHCB
979VHCD
979VHCE
-40....+85°C ±1.0 ppm
±2.0 ppm
±2.5 ppm
979VEB
979VED
979VEE
979VHEB
979VHED
979VHEE
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
Electrical Frequency
Control
Voltage Range: 0.5 to 3 Vdc
Deviation: ±8 ppm min.
(others available)
Slope: Positive
Input Impedance: > 10 kohms
* Stratum III option of ±4.6 ppm total for all conditions over 20 years available.
979 TCXO
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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Enclosures
Pin Connections Pin Connections Pin Connections
1 Voltage Control or N/C 1 EFC or N/C 1 EFC when specified
7 GND 7 GND/Case 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
979 Blank = No EFC
V= EVC Option HAA T = Through-hole
S=SMT
G = Gullwing 10M00000
Typical P/N = 979VHAAT10 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.
