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Discrete Crystal Filter
Filters

Overview                   

Data Sheets  Datasheets in PDF

Package Styles        

Ordering


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Crystal Filter Package Styles

Monolithic Filters           Discrete Filters

Monolithic Crystal Filters

A range of monolithic filters are available covering the frequency range 9 MHz to 75 MHz including the standard IF's of 10.7 MHz, 21.4 MHz and 45 MHz available in 12.5 kHz and 25 kHz channel spacing.

10.7 MHz Filters

No. of Poles

Available Styles

2 QC53
4 QC53 x2
6 QFP7, QFP9, QFP10
8 QFP7, QFP9, QFP11
   
21.4 MHz Filters

No. of Poles

Available Styles

2 QC44
4 QC44 x2
6 QFP22
8 QFP23, QFP9
  
45 MHz Filters

No. of Poles

Available Styles

2 QC44
4 QC44 x2

Up to 45 MHz the fundamental mode of the crystal is utilised ensuring the lowest possible impedance levels and best spurious mode characteristics. Above 45 MHz the 3rd overtone mode is used.

3rd Overtone 45 MHz to 75 MHz Filters

No. of Poles

Available Styles

2 QC44
4 QC44 x2

Discrete Crystal Filters

A range of discrete crystal filters is available covering the frequency range 1.5 MHz to 21.4 MHz. Some of the most popular frequencies are:

IF

Application

Available Styles
1.5 MHz Single/upper/lower side band QFP16
2.5 MHz Single/upper/lower side band QFP26
10.7 MHz Wide bandwidth, linear phase QFP9, QFP25
21.4 MHz Wide bandwidth, linear phase QFP9, QFP25

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