tel: +86-23-62808818 fax: +86-23-62808382 www.sipatsaw.com / sales@sipat.com part number lbt89702 rev. date 2011-03-15 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 897.5mhz saw filter 24mhz 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: lbt89702 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 - 897.5 - insertion loss(885.5 909.5mhz) db - 1.4 2.5 passband variation(885.5 909.5mhz) db - 0.6 1 vswr(885.5 909.5mhz) - - 1.8 2 ultimate rejection(930.5 954.5mhz) db 20 28 - material temperature coefficient khz/c -28.7 substrate material - 42lt ambient temperature c 25 operating temperature range c -40 - +85 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 lbt89702 rev. date 2011-03-15 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 897.5mhz saw filter 24mhz 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: lbt89702 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) H97B: 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 H97B 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 lbt89702 rev. date 2011-03-15 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 897.5mhz saw filter 24mhz 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: lbt89702 typical performance frequency response passband response 750 800 850 900 950 1000 -90.8858 -80.8858 -70.8858 -60.8858 -50.8858 -40.8858 -30.8858 -20.8858 -10.8858 -0.8858 9.1142 type performance frequency(mhz) magnitude(db) 850 860 870 880 890 900 910 920 930 940 -3.3858 -2.8858 -2.3858 -1.8858 -1.3858 -0.8858 -0.3858 0.1142 0.6142 type performance frequency(mhz) amplitude ripple(db) horizontal: 50mhz/div vertical: 10db/div horizontal: 10mhz/div vertical: 0.5db/div group delay variation(885.5 909.5mhz) phase linearity(885.5 909.5mhz) 870 880 890 900 910 920 -30 -20 -10 0 10 20 30 40 50 x: 885.5 y: 17.11 type performance frequency(mhz) group delay time(ns) x: 909.5 y: 17.8 880 885 890 895 900 905 910 915 -30 -25 -20 -15 -10 -5 0 5 10 15 20 25 x: 885.5 y: 2.159 type performance frequency(mhz) degree(deg) x: 909.5 y: -3.428 horizontal: 10mhz/div vertical: 10ns/div horizontal: 5mhz/div vertical: 5deg/div vswr11(885.5 909.5mhz) vswr22(885.5 909.5mhz) 850 860 870 880 890 900 910 920 930 940 0.5 1 1.5 2 2.5 3 x: 885.5 y: 1.184 type performance (vswr1) frequency(mhz) magnitude(db) x: 909.5 y: 1.123 850 860 870 880 890 900 910 920 930 940 0.5 1 1.5 2 2.5 3 x: 885.5 y: 1.171 type performance (vswr2) frequency(mhz) magnitude(db) x: 909.5 y: 1.115
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