general description ics offers a range of surface acoustic wave (saw) devices to be used in gps applications. designed with low loss and excellent rejection characteristics, the ics product offering includes front-end rf bandpass filters, intermediate frequency (if) filters, and a delay line to provide a complete system solution. the gps saw filters are lead-free and rohs-compliant. front-end rf bandpass filters the sf1575ba02505s and sf157ba02056s are 1575.42- mhz bandpass filters that offer low loss, excellent rejection, and miniature surface-mount packaging to meet the needs of small form-factor gps receivers. if filter designed for if-stage filtering, the sf0185ba02302s is centered at 185.76 mhz with a bandwidth of 4.48 mhz. this part offers tight rejection, low-amplitude ripple, and low-phase ripple. delay line the sf1575dl03104s is a 1575-mhz saw delay line designed for use in gps, satellite, and other high-end communications applications. ics also offers custom and semi-custom devices to match your frequency plan and requirements. please contact the ics representative nearest you with your details. ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? saw filters for gps applications baseband if ic synthesizer rf saw if saw antenna ~ lna gps receiver block diagram part min. max. amplitude number f c bandwidth insertion loss rejection ripple package sf1575ba02505s 1575.42 mhz 2.4 mhz 1.8 db 30 db @ -75 mhz 1.0 db smp0303 30 db @ +50 mhz (3.0 x 3.0 mm) sf1575ba02506s 1575.42 mhz 2.4 mhz 2.0 db 30 db @ -75 mhz 1.0 db smp0202 30 db @ +50 mhz (2.4 x 2.0 mm) rf filters part min. max. gd number f c bandwidth insertion loss rejection ripple package sf0185ba02302s 185.76 mhz 4.48 mhz 25 db 42 db @ -9.54 mhz 2.0 ns p-p smp0907 42 db @ +9.46 mhz max. (9.1 x 7.1 mm) if filters part min. max. average gd number f c bandwidth insertion loss group delay ripple package sf01575dl03104s 1575 mhz 20 mhz 23 db 230 ns max. 2.0 db smp0505 (5.0 x 5.0 mm) delay lines www.icst.com
? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? saw filters for gps applications package diagrams (all dimensions in millimeters) smp0202 smp0303 smp0505 smp0907 units: mm pad configuration: input: 1 output: 3 ground: 2, 4 units: mm pad configuration: input: 2 output: 5 ground: 1, 3, 4, 6 units: mm pad configuration: input: 9 input return: 8 output: 4 output return: 3 ground: 1, 2, 5, 6, 7, 10, 11 units: mm pad configuration: input: 3 input return: 2 output: 7 output return: 6 ground: 1, 4, 5, 8 4-0605/saw gps the ics logo is a registered trademark of integrated circuit systems, inc. all others are trademarks of their respective owners and may be registered in certain jurisdictions. the information furnished herein is believed to be accurate and reliable. however, ics reserves the right to make changes witho ut notice. ? copyright 2005 integrated circuit systems, inc. printed in usa. all rights reserved. saw components group 324 clark street worcester, ma 01606 tel.: |508| 852.5400 fax: |508| 852-8456 north america 525 race street san jose, ca 95126 tel.: |408| 925.9422 fax: |408| 271-2578 china 9f-2, no. 160, sec. 6 min chuan east road nei hu taipei, taiwan tel.: 886.2.8792.0010 fax: 886.2.8791.6700 europe p.o. box 34 lewes, bn8 4yq united kingdom tel.: +44 |0| 1273.401301 fax: +44 |0| 1273.401304 japan kakiya bldg, 8th floor 2-7-17 shinyokohama kouhoku-ku, yokohama 222-00033 japan tel.: 045.478.0841 fax: 045.478.0847 korea #1906 b-section building of kolong tripolics 210 kumkok-dong, bundang-gu sungnang-city, kyungki-do 463-805 korea tel.: 82.31.728.3356 fax: 82.31.728.3357 www.icst.com
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