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Ceramic Filters CERAFIL® Application Manual
26Pages

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Catalog excerpts

Ceramic Filters CERAFIL® Application Manual - 1

Note • Please read rating and CAUTION (for storage and operating, rating, soldering and mounting, handling) in this catalog to prevent smoking and/or burning, etc. • This catalog has only typical specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering. CERAMIC FILTER (CERAFIL®) Application Manual

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Ceramic Filters CERAFIL® Application Manual - 2

Note • Please read rating and CAUTION (for storage and operating, rating, soldering and mounting, handling) in this catalog to prevent smoking and/or burning, etc. • This catalog has only typical specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering. Introduction Ceramic filters (CERAFIL®*) have now become an indispensable component in a multitude of electronic equipment. The IC, developed in military and space applications, has found wide use in the field of commercial equipment, such as stereo...

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Ceramic Filters CERAFIL® Application Manual - 3

Note • Please read rating and CAUTION (for storage and operating, rating, soldering and mounting, handling) in this catalog to prevent smoking and/or burning, etc. • This catalog has only typical specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering. 3 Operating Principles of CERAFIL® 4 Technical terms of CERAFIL® 8 Ceramic Discriminator Application Operating Principles of CERAFIL® Technical terms of CERAFIL® Ceramic Discriminator Application

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Ceramic Filters CERAFIL® Application Manual - 4

Note • Please read rating and CAUTION (for storage and operating, rating, soldering and mounting, handling) in this catalog to prevent smoking and/or burning, etc. • This catalog has only typical specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering. Ceramic Filter Lead Type Lead Type Ceramic Trap Ceramic Discriminator Radio Communication Equipment Cordless Phone Mobile Phone Wireless Data Communication Typical Center Frequency Portable Audio Hi-Fi Audio Types of CERAFIL® and applicable markets

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Ceramic Filters CERAFIL® Application Manual - 5

Note • Please read rating and CAUTION (for storage and operating, rating, soldering and mounting, handling) in this catalog to prevent smoking and/or burning, etc. • This catalog has only typical specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering. 2 Filter 1. Filter An electrical component which has a function of passing, or stopping, a specific frequency. 2. Operating Principles and Features of Filters The filters have different names depending on the structures and the materials used. The types,...

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Ceramic Filters CERAFIL® Application Manual - 6

Note • Please read rating and CAUTION (for storage and operating, rating, soldering and mounting, handling) in this catalog to prevent smoking and/or burning, etc. • This catalog has only typical specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering. 3 Operating Principles of CERAFIL® CERAFIL® (ceramic filter) is a filter which uses a piezoelectric ceramics (barium titanate ceramics, leadzirconate-titanate ceramics, etc.) as an electricalmechanical transducer and as a mechanical resonator. It provides...

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Ceramic Filters CERAFIL® Application Manual - 7

Note • Please read rating and CAUTION (for storage and operating, rating, soldering and mounting, handling) in this catalog to prevent smoking and/or burning, etc. • This catalog has only typical specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering. Operating Principle of CERAFIL® 2. What is Piezoelectric Ceramics? Some piezoelectric crystals can be calcined into polycrystal ceramics, though there is a spontaneous polarization in each of the fine crystals in the piezoelectric ceramics which is...

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Ceramic Filters CERAFIL® Application Manual - 8

Note • Please read rating and CAUTION (for storage and operating, rating, soldering and mounting, handling) in this catalog to prevent smoking and/or burning, etc. • This catalog has only typical specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering. Operating Principle of CERAFIL® 2. Symbols in the Electrical Circuit of the Electrical-Mechanical Transducer and the Equivalent Circuit The symbols as shown in Fig. 3-2 are used for the electrical-mechanical transducer in an electrical circuit. The...

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Ceramic Filters CERAFIL® Application Manual - 9

Note • Please read rating and CAUTION (for storage and operating, rating, soldering and mounting, handling) in this catalog to prevent smoking and/or burning, etc. • This catalog has only typical specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering. Operating Principle of CERAFIL® 4. CERAFIL® When the piezoelectric ceramics described above is polarized by providing a pair of electrodes so that it can be excited in a prescribed vibrating mode, and if a suitable matching impedance is applied to operate...

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Ceramic Filters CERAFIL® Application Manual - 10

Note • Please read rating and CAUTION (for storage and operating, rating, soldering and mounting, handling) in this catalog to prevent smoking and/or burning, etc. • This catalog has only typical specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering. 4 Technical Terms of CERAFIL® Some specific terms are used with CERAFIL®. Let us explain those terms in this paragraph. 1. Frequency Characteristics of CERAFIL® and Related Terminologies Refer to the frequency characteristic graph (Fig. 4-1) with...

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Ceramic Filters CERAFIL® Application Manual - 11

Note • Please read rating and CAUTION (for storage and operating, rating, soldering and mounting, handling) in this catalog to prevent smoking and/or burning, etc. • This catalog has only typical specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering. Technical terms of CERAFIL® 2. Other Terminologies 1. Input/Output Impedance Signifies the internal impedance value of the input and output side at the center frequency of CERAFIL®, and it is expressed in Ω. It causes no problem even if the input and the...

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