tel: +86-23-62808818 fax: +86-23-62808382 www.sipatsaw.com / sales@sipat.com part number LBT87505 rev. date 2011-03-11 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 875mhz saw filter 20mhz 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: LBT87505 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 - 875 - 865 885mhz db - 1.5 2.5 insertion loss 870 880mhz db - 1.2 2 passband variation(865 885mhz) db - 0.5 1.5 vswr(865 885mhz) - - 1.5/1.4 2 ultimate rejection(825 835mhz) db 40 42 - material temperature coefficient khz/c -28 substrate material - 42lt ambient temperature c 25 dc voltage v 0 input power dbm - - 10 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 LBT87505 rev. date 2011-03-11 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 875mhz saw filter 20mhz 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: LBT87505 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 marking configuration: 1) ?: pad number 1 index 2) h75e: part number 3) xxyy: date(year/month) input output 50 50 1.240.18 3.000.10 3.000.10 1.50 0.76 0.890.08 h75e xxyy 1 2 3 6 5 4 1 2 3 6 5 4 1.60 0.61
tel: +86-23-62808818 fax: +86-23-62808382 www.sipatsaw.com / sales@sipat.com part number LBT87505 rev. date 2011-03-11 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 875mhz saw filter 20mhz 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: LBT87505 typical performance frequency response passband response 780 800 820 840 860 880 900 920 940 960 -90.9306 -80.9306 -70.9306 -60.9306 -50.9306 -40.9306 -30.9306 -20.9306 -10.9306 -0.9306 9.0694 type performance frequency(mhz) magnitude(db) 840 850 860 870 880 890 900 910 -2.9306 -2.4306 -1.9306 -1.4306 -0.9306 -0.4306 0.0694 0.5694 type performance frequency(mhz) amplitude ripple(db) horizontal: 20mhz/div vertical: 10db/div horizontal: 10mhz/div vertical: 0.5db/div group delay variation(f010mhz) phase linearity(f010mhz) 850 855 860 865 870 875 880 885 890 895 900 -50 0 50 100 x: 865 y: 35.82 type performance frequency(mhz) group delay time(ns) x: 885 y: 34.42 850 855 860 865 870 875 880 885 890 895 900 -30 -20 -10 0 10 20 30 x: 865 y: 5.706 type performance frequency(mhz) degree(deg) x: 885 y: -0.9215 horizontal: 5mhz/div vertical: 50ns/div horizontal: 5mhz/div vertical: 10deg/div vswr11(f010mhz) vswr22(f010mhz) 840 850 860 870 880 890 900 910 0.5 1 1.5 2 2.5 3 3.5 x: 865 y: 1.066 type performance (vswr1) frequency(mhz) magnitude(db) x: 885 y: 1.119 840 850 860 870 880 890 900 910 0.5 1 1.5 2 2.5 3 3.5 x: 865 y: 1.119 type performance (vswr2) frequency(mhz) magnitude(db) x: 885 y: 1.241
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