Small ceramic packaging chip type crystal oscillator with stable frequency
A crystal oscillator, ceramic packaging technology, applied in the direction of output stability, electrical components, etc., can solve the problems of long temperature and crystal frequency stabilization time, constant temperature crystal oscillator power consumption and large volume, etc., to avoid delay and heat loss, realize The effect of miniaturization, precise and rapid temperature control
Inactive Publication Date: 2019-10-15
唐山晶源电子有限公司
View PDF4 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0002] Existing constant temperature crystal oscillator products all realize constant crystal temperature by controlling the ambient temperature around the crystal. There must be thermal gradient and energy loss between the temperature control sensor of the constant temperature crystal oscillator temperature control circuit, the heating body and the crystal chip. It directly leads to the large power consumption and volume of the traditional constant temperature crystal oscillator, and the long time to stabilize the temperature and crystal frequency
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0019] The present invention will be further described below in combination with specific embodiments.
[0020] see figure 1 , figure 2 , the present invention is made up of base 1, the cover 3 that closes base 1, and base 1 is provided with wafer fixing platform, and the two ends of wafer 2 are connected with wafer fixing platform, and the surface of wafer 2 is provided with crystal electrode 6 and heating. Resistive film 7; the terminal of crystal electrode 6 on the upper surface is c; the terminal of crystal electrode 6 on the lower surface is d; the two terminals of thermal resistance film 7 are a and b; the bottom of chip 2 is provided with temperature sensor 4 , an OCXO temperature control circuit and an oscillation circuit 5 are arranged below the temperature sensor 4 .
[0021] The base 1 is provided with an upper installation area and a lower installation area, the upper installation area is equipped with a fixed chip 2 and a temperature sensor 4, and the lower ins...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a small ceramic packaging chip type crystal oscillator with stable frequency. The device comprises a base and a sealing cover, a wafer fixing table is arranged in the base, thetwo ends of a wafer are connected with the wafer fixing table, a crystal electrode and a heating resistive film are arranged on the surface of the wafer, a temperature sensor is arranged below the wafer, and an OCXO temperature control circuit and an oscillating circuit are arranged below the temperature sensor. The temperature gradient between a temperature sensor and a crystal of a traditionaltemperature control circuit is eliminated, the corresponding time of the temperature control circuit is shortened, and therefore accurate and rapid temperature control is achieved; and the crystal andthe circuit are packaged in the ceramic cavity, so that the stability of frequency and the miniaturization of the product are realized.
Description
technical field [0001] The invention relates to an oscillating circuit, in particular to a small crystal oscillator with stable frequency. Background technique [0002] Existing constant temperature crystal oscillator products all realize constant crystal temperature by controlling the ambient temperature around the crystal. There must be thermal gradient and energy loss between the temperature control sensor of the constant temperature crystal oscillator temperature control circuit, the heating body and the crystal chip. It directly leads to the large power consumption and volume of the traditional constant temperature crystal oscillator, and the long time to stabilize the temperature and crystal oscillator frequency. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a small ceramic-packaged chip crystal oscillator with stable frequency, which can eliminate the temperature gradient between the temperature sensor a...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): H03L1/02H03L1/04
CPCH03L1/022H03L1/04
Inventor 王一民崔立志陈建松狄建兴王洪斌
Owner 唐山晶源电子有限公司