Temperature Compensated Crystal Oscillator (TCXO) with Improved Temperature Compensation.

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Abstract:

A TCXO including a series capacitance is improved by having the temperature sensitivity of the series load capacitance be chosen in accordance with the formula T sub CL T sub Co 2 T sub K1-alpha sub 0 wherein TCL is the temperature coefficient of the series load capacitor, T sub Co is the temperature coefficient of the resonator static capacitance, TK is the temperature coefficient of the piezoelectric coupling for the resonator, and alpha sub 0 is the center value of load factor alpha wherein the load factor, alpha, is defined as alpha sub Co sub Co sub CL wherein sub Co is the resonator static capacitance and sub CL is the series load capacitance. Patent applications. jhd

Author(s):
Kosinski, John A.
Author Organization(s):
DEPARTMENT OF THE ARMY WASHINGTON DC
Descriptive Note:
Patent application, Filed 4 Oct 89,
Pagination:
0011

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
PAT-APPL-417 132
 Subject Terms
Communities of Interest:
No COI(s) Identified
Descriptor(s):
*CRYSTAL OSCILLATORS, *PATENT APPLICATIONS, *PIEZOELECTRIC EFFECT, *TEMPERATURE CONTROL, CAPACITANCE, CAPACITORS, COMPENSATION, COUPLING CIRCUITS, LOADS(FORCES), RESONATORS, SENSITIVITY, STATICS, TEMPERATURE COEFFICIENTS
Field(s)/Group(s):
Electrical and Electronic Equipment, Crystallography
Keyword(s):
TCXO(Temperature Compensated Crystal Oscillators)
Report Date:
1989 Oct 04