480.00 mhz saw filter phone: +86 10 6301 4184 fax: +86 10 6301 9167 email: sales@vanlong.com web: http://www.va nlong.com ? 2003 by vanlong technology co., ltd. SF480-4 ideal for dbs receivers, if filter constant group delay improved esd capability by integrated shunt resistors rugged, hermetic, low profile to-39 package absolute maximum rating (ta=25 c) parameter rating unit ac voltage between any two pins v pp 5 v dc voltage between any two pins v dc 0 v operating temperature range t a -25 ~ +85 c storage temperature range t stg -40 ~ +85 c electronic characteristics of channel 1 parameter sym minimum typical maximum unit center frequency (25 c) between 3db point tolerance from 480.00 mhz f c ? f c ns - 480.00 - ns 1.0 mhz mhz insertion attenuation - 21.8 24.0 db 3db bandwidth bw 3 - 15.0 - mhz relative attenuation 472.00 mhz 487.00 mhz lower sidelobe 430.00 ? 458.00 mhz upper sidelobe 501.00 ? 530.00 mhz rel - - 34 34 3.1 3.0 45 44 5.0 5.0 - - db db db db reflected wave signal suppression 0.15 s ? 2.0 s after main pulse - 40.0 46.0 - db amplitude ripple (p-p) 475.00 ? 484.00 mhz ? - 0.6 1.2 db group delay ripple (p-p) 472.00 ? 487.00 mhz ? - 10.0 15.0 ns temperature coefficient of frequency ftc - -86 - ppm/k electronic characteristics of channel 2 parameter sym minimum typical maximum unit center frequency (25 c) between 3db point tolerance from 480.00 mhz f c ? f c ns - 480.00 - ns 1.0 mhz mhz insertion attenuation - 22.0 24.0 db 3db bandwidth bw 3 - 27.0 - mhz relative attenuation 466.00 mhz 493.00 mhz lower sidelobe 430.00 ? 456.00 mhz upper sidelobe 503.00 ? 530.00 mhz rel - - 34 34 3.1 2.7 41.5 41.5 5.0 5.0 - - db db db db reflected wave signal suppression 0.15 s ? 2.0 s after main pulse - 40.0 44.0 - db amplitude ripple (p-p) 475.00 ? 484.00 mhz ? - 0.6 1.2 db group delay ripple (p-p) 466.00 ? 493.00 mhz ? - 8.0 15.0 ns temperature coefficient of frequency ftc - -86 - ppm/k ns = not specified SF480-4
480.00 mhz saw filter phone: +86 10 6301 4184 fax: +86 10 6301 9167 email: sales@vanlong.com web: http://www.va nlong.com ? 2003 by vanlong technology co., ltd. SF480-4 notes: 1. the frequency f c is defined as the midpoint between the 3db frequencies. 2. unless noted otherwise, all measurements are made with the filter installed in the specified 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 filter center frequency, f c . note that insertion loss, bandwidth, and passband shape are dependent on the impedance matching component values and quality. 3. unless noted otherwise, specifications apply over the entire specified operating temperature range. 4. the specifications of this device are based on the test circuit shown above and subject to change or obsolescence without notice. 5. all equipment designs utilizing this product must be approved by the appropriate government agency prior to manufacture or sale. 6. our liability is only assumed for the surface acoustic wave (saw) component(s) per se, not for applications, processes and circuits implemented within components or assemblies. 7. for questions on technology, prices and delivery please contact our sales offices or e-mail sales@vanlong.com. package dimensions (to-39-4) marking equivalent lc model typical frequency response channel 1 channel 2 SF480-4 480.00 electrical connections terminals connection 1 input / output 2 output 2 / input 2 3 output 1 / input 1 4 case ground package dimensions dimensions nom. (mm) tol. (mm) a 9.35 0.10 b 3.40 0.10 c 3.00 0.20 d 0.45 0.10 e 5.08 0.10 f 2.54 0.20 g 1.0 h 0.6 ink marking color: black or blue
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