tel: +86-23-62808818 fax: +86-23-62808382 www.sipatsaw.com / sales@sipat.com part number LB140DS50 rev. date 2010-12-13 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 140mhz saw filter 1mhz 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: LB140DS50 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 139.85 140 140.15 insertion loss db - 13 15 1 db bandwidth mhz - 1.14 - 3 db bandwidth mhz 1 1.77 - 40 db bandwidth mhz - 4.1 4.5 passband variation db - 0.1 1 absolute delay usec - 1.26 - ultimate rejection db 48 51 - material temperature coefficient khz/c 0.14 substrate material - qz ambient temperature c 25 dc voltage v 0 input power dbm - - 10 esd class - 1c package size smd13.3*6.5 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 LB140DS50 rev. date 2010-12-13 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 140mhz saw filter 1mhz 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: LB140DS50 matching configuration l1=150nh l2=(120+15)nh c1=c2=56pf source/load impedance=50 ohm notes - component values may change depending on board layout. package dimension package: smd13.3*6.5 unit: mm pad configuration: input: 11 output: 5 ground: all others marking configuration: 1) ?: pad number 1 index 2) sipat: manufacturer name 3) LB140DS50: part number 4) xxyy: date(year/month) 5) zz: identified code 6 5 12 11 4 3 2 1 7 8 9 10 1 3 2 4 10 7 8 9 12 11 5 6 13.30.2 6.50.2 1.610.2 2.540.15 sipat LB140DS50 xxyyzz 7.620.15 0.80.13 1.50.15 2.540.15 c1 input output 50 50 l1 l2 c2
tel: +86-23-62808818 fax: +86-23-62808382 www.sipatsaw.com / sales@sipat.com part number LB140DS50 rev. date 2010-12-13 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 140mhz saw filter 1mhz 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: LB140DS50 typical performance frequency response passband response 125 130 135 140 145 150 155 -102.9732 -92.9732 -82.9732 -72.9732 -62.9732 -52.9732 -42.9732 -32.9732 -22.9732 -12.9732 -2.9732 type performance frequency(mhz) magnitude(db) 138 138.5 139 139.5 140 140.5 141 141.5 142 -15.4732 -14.9732 -14.4732 -13.9732 -13.4732 -12.9732 -12.4732 -11.9732 -11.4732 type performance frequency(mhz) amplitude ripple(db) horizontal: 5mhz/div vertical: 10db/div horizontal: 0.5mhz/div vertical: 0.5db/div group delay variation(f00.5mhz) phase linearity(f00.5mhz) 138 138.5 139 139.5 140 140.5 141 141.5 142 800 900 1000 1100 1200 1300 1400 1500 1600 1700 x: 139.5 y: 1283 type performance frequency(mhz) group delay time(ns) x: 140 y: 1227 x: 140.5 y: 1273 138 138.5 139 139.5 140 140.5 141 141.5 142 -10 -8 -6 -4 -2 0 2 4 6 8 10 x: 139.5 y: 0.4744 type performance frequency(mhz) degree(deg) x: 140 y: -0.1667 x: 140.5 y: 0.4906 horizontal: 0.5mhz/div vertical: 100ns/div horizontal: 0.5mhz/div vertical: 2deg/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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