tel: +86-23-62808818 fax: +86-23-62808382 www.sipatsaw.com / sales@sipat.com part number LBT25003 rev. date 2010-04-07 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 250mhz saw filter 8mhz 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: LBT25003 features ? for if saw filter ? high attenuation ? single-ended operation ? dual in-line package ? rohs compliant (2002/95/ec), pb-free specifications parameter unit minimum typical maximum center frequency mhz 249.8 250 250.2 insertion loss db - 22.2 25.5 1 db bandwidth mhz 7.3 7.95 - 3 db bandwidth mhz 8 8.41 - 40 db bandwidth mhz - 10.14 10.6 50 db bandwidth mhz - 10.3 11 passband variation db - 0.8 1 phase linearity(f04mhz) deg - 8 10 group delay variation(f04mhz) nsec - 50 210 absolute delay usec - 2.1 - ultimate rejection db 50 57 - material temperature coefficient khz/c -4.5 substrate material - 112lt ambient temperature c 25 operating temperature range c -40 - +85 dc voltage v 0 input power dbm - - 10 esd class - 1a package size dip2212 (22.2x12.8x4.7mm3) 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 LBT25003 rev. date 2010-04-07 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 250mhz saw filter 8mhz 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: LBT25003 matching configuration l1=5nh l2=10nh c1=c2=22pf source/load impedance=50 ohm notes - component values may change depending on board layout. package dimension 1 2 3 45 6 12.80 0.50 22.20 0.50 4.30 0.50 4.50 0.50 7.62 0.20 2.54 0.20 12.70 0.20 0.45 0.05 2.54 0.20 sipat LBT25003 xxyyzz package: dip2212 unit: mm pad configuration: input 1 output 5 ground all others marking configuration: 1) sipat: manufacturer name 2) LBT25003: part number 3) xxyy: date(year/month) 4) zz: identified code c1 input output 50 50 l1 l2 c2
tel: +86-23-62808818 fax: +86-23-62808382 www.sipatsaw.com / sales@sipat.com part number LBT25003 rev. date 2010-04-07 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 250mhz saw filter 8mhz 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: LBT25003 typical performance frequency response passband response 225 230 235 240 245 250 255 260 265 270 275 -112.1658 -102.1658 -92.1658 -82.1658 -72.1658 -62.1658 -52.1658 -42.1658 -32.1658 -22.1658 -12.1658 type performance frequency(mhz) magnitude(db) 244 246 248 250 252 254 256 -24.6658 -24.1658 -23.6658 -23.1658 -22.6658 -22.1658 -21.6658 -21.1658 -20.6658 -20.1658 -19.6658 type performance frequency(mhz) amplitude ripple(db) horizontal: 5mhz/div vertical: 10db/div horizontal: 2mhz/div vertical: 0.5db/div group delay variation(f04mhz) phase linearity(f04mhz) 244 246 248 250 252 254 256 1500 1600 1700 1800 1900 2000 2100 2200 2300 2400 2500 2600 x: 250 y: 2145 type performance frequency(mhz) group delay time(ns) x: 254 y: 2123 x: 246 y: 2103 244 246 248 250 252 254 256 -50 -40 -30 -20 -10 0 10 20 30 40 x: 246 y: -3.024 type performance frequency(mhz) degree(deg) x: 254 y: -0.1761 x: 250 y: 0.3473 horizontal: 2mhz/div vertical: 100ns/div horizontal: 2mhz/div vertical: 10deg/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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