tel: +86-23-62808818 fax: +86-23-62808382 www.sipatsaw.com / sawmkt@sipat.com part number LBT15903 rev. date 2009-06-03 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 158.52mhz 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: LBT15903 features ? for if saw filter ? single-ended operation ? ceramic surface mount package ? small size ? rohs compliant (2002/95/ec), pb-free specifications parameter unit minimum typical maximum center frequency mhz - 158.52 - insertion loss db - 20 - 1 db bandwidth mhz 20 21.15 - 3 db bandwidth mhz - 22.2 - 40 db bandwidth mhz - 26.55 28 passband variation db - 0.8 1 vswr - - 5.65/4.89 - group delay variation(f010mhz) nsec - 50 200 absolute delay usec - 0.81 1.6 @f014mhz db 35 39 - ultimate rejection @f031mhz db 50 51 - material temperature coefficient khz/c -2.85 substrate material - 112lt ambient temperature c 25 operating temperature range c -40 - +85 storage temperature range c -45 - +105 dc voltage v 0 input power dbm - - 10 esd class - 1a package size smd7.0*5.0 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 / sawmkt@sipat.com part number LBT15903 rev. date 2009-06-03 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 158.52mhz 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: LBT15903 matching configuration l1=(82+27)nh l2=120nh c1=27pf c2=15pf source/load impedance=50 ohm notes - component values may change depending on board layout. package dimension package: smd7.0*5.0 unit: mm pad configuration: input: 9 output: 4 ground: all others marking configuration: 1) ?: pad number 1 index 2) sipat: manufacturer name 3) LBT15903: part number 4) xxyy: date(year/month) 5) zz: identified code c1 input output 50 50 l1 l2 c2 4 3 2 5 6 7 8 9 10 1 1 3 2 9 10 8 7 6 5 4 7.000.15 5.000.15 1.500.15 0.80 0.60 1.00 2.54 1.27 sipat LBT15903 xxyyzz
tel: +86-23-62808818 fax: +86-23-62808382 www.sipatsaw.com / sawmkt@sipat.com part number LBT15903 rev. date 2009-06-03 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 158.52mhz 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: LBT15903 typical performance frequency respond passband respond 110 120 130 140 150 160 170 180 190 200 -110.0305 -100.0305 -90.0305 -80.0305 -70.0305 -60.0305 -50.0305 -40.0305 -30.0305 -20.0305 -10.0305 type performance frequency(mhz) magnitude(db) 130 140 150 160 170 180 -22.5305 -22.0305 -21.5305 -21.0305 -20.5305 -20.0305 -19.5305 -19.0305 -18.5305 type performance frequency(mhz) amplitude ripple(db) horizontal: 10mhz/div vertical: 10db/div horizontal: 10mhz/div vertical: 0.5db/div group delay variation(f010mhz) phase linearity(f010mhz) 145 150 155 160 165 170 400 500 600 700 800 900 1000 1100 1200 x: 158.5 y: 829.4 type performance frequency(mhz) group delay time(ns) x: 168.5 y: 825.1 x: 148.5 y: 793.2 145 150 155 160 165 170 -80 -60 -40 -20 0 20 40 60 x: 148.5 y: -7.731 type performance frequency(mhz) degree(deg) x: 158.5 y: 4.025 x: 168.5 y: -4.22 horizontal: 5mhz/div vertical: 100ns/div horizontal: 5mhz/div vertical: 20deg/div smith chart s11 smith chart s22 0.2 0.5 1.0 2.0 5.0 +j0.2 -j0.2 +j0.5 -j0.5 +j1.0 -j1.0 +j2.0 -j2.0 +j5.0 -j5.0 0.0 0.2 0.5 1.0 2.0 5.0 +j0.2 -j0.2 +j0.5 -j0.5 +j1.0 -j1.0 +j2.0 -j2.0 +j5.0 -j5.0 0.0
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