tel: +86-23-62808818 fax: +86-23-62808382 www.sipatsaw.com / sawmkt@sipat.com part number LBT20405 rev. date 2009-01-22 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 204mhz saw filter 5mhz 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: LBT20405 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 203.4 204 204.6 insertion loss db - 10.3 15 1 db bandwidth mhz - 5.67 - 3 db bandwidth mhz 5 5.74 - 40 db bandwidth mhz - 11.21 11.5 passband variation db - 0.3 1 group delay variation(f02.5mhz) nsec - 50 100 phase linearity(f02.5mhz) deg - 4 5 absolute delay usec - 0.98 - f0-5.5mhz db 40 44 - ultimate rejection f0+5.5mhz db 40 42 - material temperature coefficient khz/c -3.67 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 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 / sawmkt@sipat.com part number LBT20405 rev. date 2009-01-22 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 204mhz saw filter 5mhz 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: LBT20405 matching configuration l1=56nh l2=47nh c1=36pf c2=33pf 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: 10 output: 5 ground: all others marking configuration: 1) ?: pad number 1 index 2) sipat: manufacturer name 3) LBT20405: part number 4) xxyy: date(year/month) 5) zz: identified code c1 input output 50 50 l1 l2 c2 13.3 +0.2 -0.1 6.5 +0.2 -0.1 0.4 0.76 2.9 1.02 0.6 1.91 1.56 0.1 sipat LBT20405 xxyyzz 0.51
tel: +86-23-62808818 fax: +86-23-62808382 www.sipatsaw.com / sawmkt@sipat.com part number LBT20405 rev. date 2009-01-22 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 204mhz saw filter 5mhz 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: LBT20405 typical performance frequency respond passband respond 180 185 190 195 200 205 210 215 220 225 -100.2905 -90.2905 -80.2905 -70.2905 -60.2905 -50.2905 -40.2905 -30.2905 -20.2905 -10.2905 -0.2905 type performance frequency(mhz) magnitude(db) 194 196 198 200 202 204 206 208 210 212 214 -12.7905 -12.2905 -11.7905 -11.2905 -10.7905 -10.2905 -9.7905 -9.2905 -8.7905 type performance frequency(mhz) amplitude ripple(db) horizontal: 5mhz/div vertical: 10db/div horizontal: 2mhz/div vertical: 0.5db/div group delay variation(f02.5mhz) phase linearity(f02.5mhz) 198 200 202 204 206 208 210 600 700 800 900 1000 1100 1200 1300 x: 204 y: 968 type performance frequency(mhz) group delay time(ns) x: 206.5 y: 956 x: 201.5 y: 968.5 198 200 202 204 206 208 210 -20 -15 -10 -5 0 5 10 15 x: 204 y: -0.838 type performance frequency(mhz) degree(deg) x: 206.5 y: 1.57 x: 201.5 y: 0.3912 horizontal: 2mhz/div vertical: 100ns/div horizontal: 2mhz/div vertical: 5deg/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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