电路装置和振荡器
By introducing a circuit device into a quartz oscillator to generate an automatic gain control voltage and output a digital signal, the problem of CI value inspection in miniaturized packages is solved, and efficient and low-cost CI value detection is achieved.
CN115622504BActive Publication Date: 2026-07-17SEIKO EPSON CORP
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SEIKO EPSON CORP
- Filing Date
- 2022-07-13
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
Existing quartz oscillators, after being miniaturized and packaged, cannot have dedicated terminals for testing, making it difficult to check the CI value.
Method used
A circuit device is connected to the oscillator. The first oscillation circuit generates a voltage for automatic gain control, and the digital signal generation circuit generates a digital signal corresponding to the voltage. The signal is then output to the terminal through the interface circuit to check the CI value.
Benefits of technology
It enables high-precision inspection of the CI value of the oscillator without increasing the package size, reducing inspection costs and time, while also supporting miniaturization of the package.
✦ Generated by Eureka AI based on patent content.
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Figure CN115622504B_ABST
Abstract
本发明提供电路装置和振荡器，能够从未与振子的电极连接的端子输出与振子的CI值对应的信号。该电路装置具有：第一端子；第一振荡电路，其使振子振荡，并且生成对从所述振子输出的信号的振幅进行控制的自动增益控制用的第一电压；数字信号生成电路，其生成与所述第一电压对应的数字信号；以及第一接口电路，其将所述数字信号输出到所述第一端子。
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