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陶瓷谐振子代替调谐元件用到电视接收机上,有使调整简化、部件减少、电磁稳定等优点。因此,对电视用陶瓷谐振子进行了积极研制和应用。本文叙述几种电视用陶瓷谐振子和其应用回路的实例,以及在研究这类应用时产生的电视回路上特有的问题和其解决办法。这些应用回路的实例涉及视频和彩色信号处理回路、伴音中频回路和视中频回路等。陶瓷谐振子的重要参数是精度、稳定性、假信号特性和价格,在满足这些要求的一些陶瓷谐振子中,高性能的甚高频陶瓷谐振子作为视中频回路滤波器和陷波器是很有前途的。
The use of ceramic resonators instead of tuning components on television receivers has the benefit of simplifying adjustments, reducing parts, and electromagnetically stable. Therefore, the ceramic resonators for television have been actively developed and applied. This article describes several examples of ceramic resonators for TVs and their application circuits, as well as the problems and solutions that are unique to the television circuits that arise when studying such applications. Examples of these application circuits involve video and color signal processing circuits, audio IF circuits and IF circuits. Among the ceramic resonators that satisfy these requirements, the important parameters of ceramic resonators are accuracy, stability, glitch characteristics, and price. High performance VHF ceramic resonators as apparent IF loop filters and notches are very Promising.