CERAMIC FILTER, TRAP, DISCRIMINATOR

For more than two decades, piezo technology has been instrumental in the proliferation of solid state electronics. A view of the future reveals that even greater expectations will be placed on piezoelectric material in the area of new applications and for more stringent performance criteria in current products. Traditionally, nearly all low and high-end AM / FM commercial radios use piezo band-pass devices. However, applications are also found in cordless telephones, cellular systems, 2-way communications, and the television industry.

As a world leader in the development of piezo technology, Direct Electronics had been able to develop specialized piezo materials which when combined with an advance design have resulted in a complete line of practical, inexpensive piezo devices for entertainment and communications applications.
CERAMIC FILTER, TRAP, DISCRIMINATOR- Download Entire Piezoelectric Catalogue, PDF file (544KB).
CERAMIC FILTER - FM SERIES
Description
Type Frequency Range Murata (P/N)
Chip LTCS10.7M Series

Chip LTCS10.7M Filters (Compatible to Murata SFECS10M7) for FM-receivers are small, high performance and super thin (1.5mm max.).

LTCS10.7M Series - PDF (317KB)

Chip 10.7 MHz SFECS10M7
FM Receiver LT10.7M Series

LT10.7M Filters (Compatible to Murata SFE10M7 FM-IF) FM Receiver are monolithic devices which utilize the energy-trapped thickness vibration-mode.

LT10.7M Series - PDF (329KB)

Dip 10.7 MHz SFE10M7 FM-IF
Chip LTCA/CV10.7M Series

Chip LTCA/CV10.7M (Compatible to Murata SFECV10M7 Ceramic Filter AM) has been made smaller, thinner and in a chip configuration for surface mounting.

LTCA/CV10.7M Series - PDF (307KB)

Chip 10.7 MHz SFECV10M7
Low Loss Type LT10.7M A10 Series

LT10.7M A10 Series Low Loss Type (Compatible to Murata SFE10M7 Ceramic Filter A10) has been made smaller, thinner and in a chip configuration for surface mounting.

LT10.7M A10 Series - PDF (329KB)

Dip 10.7 MHz SFE10M7 A10
Wide/Narrow Band-width LT10.7M Series

Wide/Narrow Band-width LT10.7M Series (Compatible to
Murata Ceramic Filter SFE10M7 DBS Receiver) has been made smaller, thinner and in a chip configuration for surface mounting.

LT10.7M Series - PDF (329KB)

Dip 10.7 MHz SFE10M7 DBS
CERAMIC FILTER - TV/VCR STAGE
Description
Type Frequency Range Murata (P/N)
TV/VCR Stage LT MB Series

LT MB Series (Compatible to Murata Ceramic Filters SFE MB series) are a high selectivity filter for 2 channel multi-sound TV.

LT MB Series - PDF (290KB)

Dip 4.5~6.5 MHz SFE MB
High-Selectivity for TV/VCR Stage - LTT MA Series

LTT High-Selectivity Series (Compatible to Murata Ceramic Filter SFT Series) are 4 element devices that offer more selectivity than the conventional LT series (Murata SFE).

LTT MA Series - PDF (295KB)

Dip 4.5~6.74 MHz SFT
Low Spurious for TV/VCR Stage - LTS MCB/MDB Series

LTS MCB/MDB Series TV/VCR Stage with Low Spurious
(Compatible to Murata Ceramic Filter SFSH MCB/MDB)
use thickness shear vibration mode and are suitable for Multiplex Sound TV in America.

LTS MCB/MDB Series - PDF (281KB)

Dip 4.5~6.5 MHz SFSH MCB/MDB
CERAMIC FILTER - COMMUNICATION
Description
Type Frequency Range Murata (P/N)
AM - LTP Series

LTP for AM (Compatible to Murata Ceramic Filter SFU450/455kHz ) are designed to address the needs of standard AM filtering requirements.

LTP Series - PDF (326KB)

Dip 450~470 KHz SFU450/455kHz
AM - LTZ Series

LTZ Series AM (Compatible to Murata Filter SFZ Series) are designed to address the needs of standard AM filtering requirements and are recommended for use in low cost products where economically, efficient designs are critical.

LTZ Series - PDF (327KB)

Dip 450~470 KHz SFZ
AM - LT Miniature Series

LT MINIATURE (Compatible to Murata Ceramic Filter PFB Series) is one of the most recommendable intermediate type, having such distinctive features as high selectivity, high stability and adjustment-free operation.

LT Miniature Series - PDF (299KB)

Dip 450~470 KHz PFB
Communication - LTB Series

Ceramic Filter LTB series comprises small, high performance. Their innovative construction is perfect for shrinking mobile communication products such as pocket pagers and cellular phones.

LTB Series - PDF (271KB)

Dip 450~470 KHz -
Ceramic Filtersfor Radio-Cassette Recorder- LT Series

Ceramic Filter LT465A for Radio-Cassette Recorder were designed to address the needs of standard radio cassette recorder requirements.

LT465A Series - PDF (308KB)

Dip 450~470 KHz -
450 kHz Search-Stop Signal Detection - LZU Series

LZU for Search-stop Signal Detection (Compatible to Murata Ceramic Filter BFU Series) are specifically designed for signal detection circuitry used in applications such as that found in the search-stop functions of electronically tuned radios.

LZU Series - PDF (277KB)

Dip 450 KHz BFU
Communication - LTC 455/450 Series

LTC 455/450 U/W Series (Compatible to Murata
Ceramic Filter CFUCG Series) comprises small, high performance, thin (4.0mm) consisting of 4 ceramic elements.

LTC 455/450 Series - PDF (356KB)

Chip 455/450 KHz CFUCG
Communication - LTM 455/450 Series

LTM 455/450 U/W for Communication (Compatible to
Murata Ceramic Filter CFUM/WM 455/450 Series) are miniaturized versions of the Murata CFU/CFWS lines. These compact, highly selective characteristics are recommended for use in applications ranging from two-way radio to auxiliary filters in high class transceivers.

LTM 455/450 Series - PDF (326KB)

Dip 455/450 KHz CFUM/WM
Communication - LT 455/450 U/W Series

LT 455/450 U/W for Communication (Compatible to
Murata Ceramic Filter CF, SF series) are 4-element and 6-element devices connected in ladder form. These highly selective filters are designed to address the G.D.T.

LT 455/450 U/W Series - PDF (309KB)

Dip 455/450 KHz CF, SF
CERAMIC DISCRIMINATORS
Description
Type Frequency Range Murata (P/N)
FM - JTCV10.7M Series

JTCV10.7M For FM are resonated devices that offer adjustment free audio detection in both wide and narrow bandwidths.

JTCV10.7M Series - PDF (142KB)

Chip 10.7 MHz -
FM - JT10.7M Series

JT10.7M For FM (Compatible to Murata Discriminator CDA 10.7) are resonated devices that offer adjustment free audio detection in both wide and narrow bandwidths.

JT10.7M Series - PDF (301KB)

Dip 10.7 MHz CDA10M7
Communication - JTC Series

JTC for Communication (Compatible to Murata Discriminator
CDBC) consists of wide band piezoelectric resonator. It is ideal for mobile communication equipments due to its small size and light weight.

JTC Series - PDF (241KB)

Chip 455 KHz CDBC
Communication - JTM Series

JTM for Communication (Compatible to Murata Discriminator
CDB/CDBC/CDBM) consists of wide band piezoelectric resonator. It is ideal for mobile communication equipment due to its small size and light weight.

JTM Series - PDF file (272KB)

Dip 455 KHz CDB/CDBC/CDBM
CERAMIC TRAP FOR TV/VCR STAGE
Description
Type Frequency Range Murata (P/N)
Triple Trap - XT MT Series

XT MT Series (Compatible to Murata Trap Filter TPT Series ) consist of 3 wafers with 3 trap frequencies. Recommended for Multi standard sets.

XT MT Series - PDF (291KB)

Dip 4.5~6.5 MHz TPT
Double Trap - XT MW Series

XT MW Series (Compatible to Murata Trap Filter TPWA Series) consist of 2 wafers with 2 trap frequencies. Recommended for Multi standard set. Features with good performance of attenuation and space saving with 3-terminal type.

XT MW Series - PDF (274KB)

Dip 4.5~6.5 MHz TPWA
Chrominance Carriers - XT MJ/MB Series

XT MJ for Chrominance Carrier (Compatible to Murata Trap Filter TPS MJ Series) are band reject device used for video and sound IF attenuation.

XT MJ/MB Series - PDF (272KB)

Dip 3.58~6.5 MHz TPS MJ
TV/VCR Stage - XT MB Series

XT MB for TV/VCR Stage (Compatible to Murata Trap Filter TPS MB Series) are band reject type used for video and sound IF attenuation.

XT MB Series - PDF (268KB)

Dip 4.5~6.5 MHz TPS MB

Correlation
Piezo Electric Devices Precaution Usage

The piezo by itself is not a clock, so it must be used with circuitry built into the IC to create the clock signal. The clock circuit consists of the passive resonator, quartz or ceramic piezo, and an active amplifier that is built into the IC. Please refer to this page for Piezo Electric Devices Precaution Usage.

Piezo Electric Devices Precaution Usage PDF (220KB)

Redial Taping Dimensions

Redial Taping Dimensions of Ceramic Filters, Resonators, Discriminators, and Trap Filters.

Redial Taping Dimensions PDF (298KB)


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