tel: +86-23-62808818 fax: +86-23-62808382 www.sipatsaw.com / sales@sipat.com part number LBT174802 rev. date 2010-04-27 sipat co., ltd. ( cetc no.26 research institute ) #14 nanping huayuan road, chongqing, china, 400060 ver. 1.0 page 1/3 c c h h i i n n a a e e l l e e c c t t r r o o n n i i c c s s t t e e c c h h n n o o l l o o g g y y g g r r o o u u p p c c o o r r p p o o r r a a t t i i o o n n n n o o . . 2 2 6 6 r r e e s s e e a a r r c c h h i i n n s s t t i i t t u u t t e e 1747.5mhz saw filter 75mhz bandwidth s s i i p p a a t t c c o o . . , , l l t t d d . . w w w w w w . . s s i i p p a a t t s s a a w w . . c c o o m m part number: LBT174802 features ? for rf saw filter ? single-ended operation ? ceramic surface mount package ? small size ? no matching required for operation at 50 ? ? rohs compliant (2002/95/ec), pb-free specifications parameter unit minimum typical maximum center frequency mhz - 1747.5 - 1710 1765mhz db - 2.7 4 insertion loss 1765 1785mhz db - 2.7 3.3 passband variation(1710 1785mhz) db - 1 2.1 vswr(1710 1785mhz) - - 1.9 2.5 10 1690mhz db 15 23 - 1690 1695mhz db 4 15 - 1800 1805mhz db 4 8 - 1805 1880mhz db 15 20 - ultimate rejection 1880 3200mhz db 20 27 - material temperature coefficient khz/c -55.9 substrate material - 42lt ambient temperature c 25 operating temperature range c -40 - +85 dc voltage v 0 input power dbm - - 15 esd class - 1a package size smd3.0*3.0 notes: 1. all specifications are based on the test circuit shown; 2. in production, all specifications are measured by ag ilent network analyzer and full 2 port calibration at room temperature; 3. electrical margin has been built into the design to account for the variations due to temperature drift and manufacturing tolerances; 4. this is the optimum impedance in order to achieve the performance show.
tel: +86-23-62808818 fax: +86-23-62808382 www.sipatsaw.com / sales@sipat.com part number LBT174802 rev. date 2010-04-27 sipat co., ltd. ( cetc no.26 research institute ) #14 nanping huayuan road, chongqing, china, 400060 ver. 1.0 page 2/3 c c h h i i n n a a e e l l e e c c t t r r o o n n i i c c s s t t e e c c h h n n o o l l o o g g y y g g r r o o u u p p c c o o r r p p o o r r a a t t i i o o n n n n o o . . 2 2 6 6 r r e e s s e e a a r r c c h h i i n n s s t t i i t t u u t t e e 1747.5mhz saw filter 75mhz bandwidth s s i i p p a a t t c c o o . . , , l l t t d d . . w w w w w w . . s s i i p p a a t t s s a a w w . . c c o o m m part number: LBT174802 matching configuration source/load impedance=50 ohm notes - component values may change depending on board layout. package dimension package: smd3.0*3.0 unit: mm pad configuration: input: 2 output: 5 ground: all others input output 50 50 1.40max 3.0 3.0 1.5 0.6 0.85 1.6 a b c d e f a b c f e d
tel: +86-23-62808818 fax: +86-23-62808382 www.sipatsaw.com / sales@sipat.com part number LBT174802 rev. date 2010-04-27 sipat co., ltd. ( cetc no.26 research institute ) #14 nanping huayuan road, chongqing, china, 400060 ver. 1.0 page 3/3 c c h h i i n n a a e e l l e e c c t t r r o o n n i i c c s s t t e e c c h h n n o o l l o o g g y y g g r r o o u u p p c c o o r r p p o o r r a a t t i i o o n n n n o o . . 2 2 6 6 r r e e s s e e a a r r c c h h i i n n s s t t i i t t u u t t e e 1747.5mhz saw filter 75mhz bandwidth s s i i p p a a t t c c o o . . , , l l t t d d . . w w w w w w . . s s i i p p a a t t s s a a w w . . c c o o m m part number: LBT174802 typical performance frequency response passband response 1500 1600 1700 1800 1900 2000 -90.9394 -80.9394 -70.9394 -60.9394 -50.9394 -40.9394 -30.9394 -20.9394 -10.9394 -0.9394 9.0606 type performance frequency(mhz) magnitude(db) 1660 1680 1700 1720 1740 1760 1780 1800 1820 1840 -3.4394 -2.9394 -2.4394 -1.9394 -1.4394 -0.9394 -0.4394 type performance frequency(mhz) amplitude ripple(db) horizontal: 100mhz/div vertical: 10db/div horizontal: 20mhz/div vertical: 0.5db/div group delay variation(f037.5mhz) phase linearity(f037.5mhz) 1660 1680 1700 1720 1740 1760 1780 1800 1820 -40 -20 0 20 40 60 x: 1710 y: 14.36 type performance frequency(mhz) group delay time(ns) x: 1785 y: 14.63 1660 1680 1700 1720 1740 1760 1780 1800 1820 1840 -80 -60 -40 -20 0 20 40 60 x: 1710 y: 2.703 type performance frequency(mhz) degree(deg) x: 1785 y: -15.64 horizontal: 20mhz/div vertical: 20ns/div horizontal: 20mhz/div vertical: 20deg/div vswr11 vswr22 1650 1700 1750 1800 1850 0.6 0.8 1 1.2 1.4 1.6 1.8 2 2.2 2.4 2.6 x: 1710 y: 1.721 type performance (vswr1) frequency(mhz) magnitude(db) x: 1785 y: 1.673 1650 1700 1750 1800 1850 0.6 0.8 1 1.2 1.4 1.6 1.8 2 2.2 2.4 2.6 x: 1710 y: 1.782 type performance (vswr2) frequency(mhz) magnitude(db) x: 1785 y: 1.713
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