DF3-3R815 – DF-B Dielectric Filters

Part Number : DF3-3R815

Function : DF-B Dielectric Filters

Manufactures : TOKEN

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Description :

TOKEN DF-A Dielectric Filters Dielectric Filters Token Offers Dielectric RF Filters for Telecoms (DF-A) Preview Token has extended the capabilities of its filter product line with the introduction of a new range of dielectric microwave filters to the available frequency range up to 5.8GHz. Token designs and manufactures custom electronic filters for defence, telecommunications and similar application increasing the range of products available to customers. Two block-type dielectric RF filters for telecoms basestation applications have been added to Token’s DF range. The filters have been designed for cellular basestation applications that use a digital pre-distortion amplifier (DPD), as they feature a wide pass band and flat ripple performance, which are required for DPD PA design. Applications also include RF and microwave communications such as GSM, 3G, GPS, satellite and TV transmission, wireless security systems, radar, CT1, CT2, 900MHz, 1.8GHz, 2.4GHz, 5.8GHz Cordless Phone, wireless earphone, wireless microphone, aerospace and military. The DF-A filter’s small size (8.8 x 7.3 x 3.6 mm) means they require more less mounting space compared to Token’s previous generation of filters for this application. The filters’ highly sophisticated multi-pole design ensures high attenuation and good selectivity. Both the two members of the DF series have a ripple of 1.0 dB max. In addition, Token enhances custom design capabilities for specialist applications. Our customers will benefit from the additional frequency ranges now available and from the excellent quality and lower costs achievable Custom parts are available on request. Token will also produce devices outside these specifications to meet specific customer requirements, please contact our sales for more information. Applications – Suitable for surface mount and reflow soldering. – Excellent mechanical structure and temperature stability. – Good selectivity, low insertion loss for using high Q-value resonators. Version 2010 http://www.token.com.tw/ rfq token.com.tw 01 of 19 TOKEN Dimensions (Unit: mm) 1.3 DF-A Dielectric Filters DF903 7.3 3.2 4.4 8.8 3.6 Unit: mm Tol: ±0.2 Typical Specifications Part No. DF457S30A DF522S10A DF683S30A DF740S30A DF864S10A DF915S25A DF903S6A DF927S6A DF1890S80A DF2403S20A DF2475S20A Center Frequency (MHz) 457 522 683 740 864 915 903 927 1890 2403 2475 Band Width (MHz) fo±15 fo±5 fo±15 fo±15 fo±5 fo±12.5 fo±3 fo±3 fo±40 fo±10 fo±10 Insertion Loss (dB) max. 3.0 3.0 2.5 2.0 2.5 2.0 3.5 3.5 1.5 3.0 3.0 Ripple in Band Width (dB) max. 1.0 0.5 1.0 0.5 0.5 1.0 0.5 0.5 1.0 0.5 0.5 V.S.W.R max. 2.0 1.6 2.0 1.8 1.5 2.0 1.5 1.5 2.0 1.5 1.5 Attenuation (dB) min. (MHz) 17 at fo+50; 30 at fo-50 23 at fo+40; 40 at fo-40 20 at fo+64; 30 at fo-64 14 at fo+64; 20 at fo-64 15 at fo+24; 17 at fo-24 20 at fo+100; 35 at fo-100 32 at fo+24 32 at fo-24 15 at fo+200; 35 at fo-200 35 at fo+75 35 at fo-75 Typical Characteristic ►1:Trans […]

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DF3-3R815 Datasheet


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