h f315 315 mhz saw filter tel:+86-755-82973806 fax:+86-755-82973550 e-mail: sales@hoperf.com http://www.hoperf.com page 1 of 3 approved by: checked by: issued by: specification product: saw filter model: hf315 f-11 hope microelectronics co.,limited
saw filter hf315 tel:+86-755-82973806 fax:+86-755-82973550 e-mail: sales@hoperf.com http://www.hoperf.com the hf315 is a low-loss, compact, and econom ical surface-acoustic-wave ( saw ) filter in a low-profile metal f-11 case designed to provide front-end selectivity in 315.000 mhz receivers. receiver designs using this filt er include superhet with 10.7 mhz or 500 khz if, direct conversion and superregen. 1.package dimension (f-11) 2.marking 3.test circuit hf315 color: black or blue 4.typical frequency response pin configuration 1 input / output 4 output / input 2 3 case ground dimensions data (unit: mm) a 11.00.3 b 4.50.3 c 3.20.3 d 0.450.1 e 5.00.5 f 2.540.2
saw filter hf315 tel:+86-755-82973806 fax:+86-755-82973550 e-mail: sales@hoperf.com http://www.hoperf.com 5.performance 5-1.maximum rating rating value unit cw rf power dissipation p +10 dbm dc voltage between any two pins v dc 30 v storage temperature range t stg -40 to +85 operating temperature range t a -10 to +60 5-2.electronic characteristics characteristic minimum typical maximum unit center frequency f c (center frequency between 3db points) 315.000 mhz insertion loss il -- 3.0 4.5 db 3db bandwidth bw 3 600 800 khz at f c -21.4mhz (image) 40 50 -- at f c -10.7mhz (lo) 20 30 -- rejection ultimate -- 60 -- db turnover temperature t o 25 55 turnover frequency f o f c mhz temperature frequency temperature coefficient ftc 0.032 ppm/ 2 frequency aging absolute value during the first year | fa | 10 ppm/yr l caution: electrostatic sensitive device. observe precautions for handling ! c 2003. all rights reserved. 1. the frequency f c is defined as the midpoint between the 3db frequencies. 2. unless noted otherwise, all m easurements are made with the f ilter installed in the specif ied test fixture that is connected to a 50 $ test system with vswr ? 1.2:1. the test fixture l and c are adjusted for minimum insertion loss at the f ilter center frequency, f c . note that insertion loss, bandwidth, and passband shape are dependent on the impedance matching co mponent values and quality. 3. unless noted otherwise, specific ations apply over the entire spec ified operating te mperature range. 4. frequency aging is the change in f c with time and is specified at + 65c or less. aging may exceed the specification for prolonged te mperatures above +65c. typically, agi ng is greatest the first year after manufacture, decreasing in subsequent years. 5. turnover temperature, t 0 , is the temperature of maximum (or turnover) frequency, f 0 . the nominal frequency at any case temperature, t c , may be calculated from: f = f 0 [1 - ftc (t 0 - t c ) 2 ]. 6. the specifications of this device are based on the test circuit shown above and subject to change or obsolescence without notice. 7. all equipment designs utilizing th is product must be approved by the appr opriate government agency prior to manufacture or sale. 8. our liability is only assumed for the surface acousti c wave (saw) component(s) per se, not for applications, processes and circuits implemented within components or assemblies. 9. for questions on technology, prices and delivery, please contact our sales offices or e-mail sales@hoperf .com .
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