phone: +86-23-62808818 fax: +86-23-62805284 www.sipatsaw.com / sawmkt@sipat.com part number lbt70a39 rev. date 2010-04-09 sipat co., ltd. ( cetc no. 26 research institute ) nanping huayuan road no. 14 chongqing, china, 400060 ver. 1.1 page 1/4 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 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 70mhz saw filter 4mhz bandwidth part number: lbt70a39 specifications parameter unit minimum typical maximum center frequency mhz 69.9 70 70.1 insertion loss db - 26 28.5 3 db bandwidth mhz 4.1 4.16 - 35 db bandwidth mhz - 4.87 4.9 40 db bandwidth mhz - 4.91 - passband variation db - 0.9 1.5 absolute delay usec - 3.97 - ultimate rejection(over f04mhz) db 50 58 - material temperature coefficient khz/c -1.26 ambient temperature c 25 package size dip3512 (35.0x12.8x4.7mm3) notes: 1. all specifications are based on the test circuit shown 2. in production, devices will be tested at room te mperature to a guardbanded specification to ensure electrical compliance over 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 matching configuration l1=150nh l2=56nh c1=82pf c2=47pf source/load impedance=50 ohm notes - component values may change depending on board layout. input output 50 50 l1 c1 l2 c2
phone: +86-23-62808818 fax: +86-23-62805284 www.sipatsaw.com / sawmkt@sipat.com part number lbt70a39 rev. date 2010-04-09 sipat co., ltd. ( cetc no. 26 research institute ) nanping huayuan road no. 14 chongqing, china, 400060 ver. 1.1 page 2/4 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 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 70mhz saw filter 4mhz bandwidth part number: lbt70a39 package dimension input 1 output 5 ground 2,3,4,6 package: dip3512 unit: mm 1 2 3 45 6 12.80 0.5 35.00 0.5 4.5 4.7 0.45 0.05 25.40 0.2 7.62 0.2 2.54 0.2 2.54 0.2
phone: +86-23-62808818 fax: +86-23-62805284 www.sipatsaw.com / sawmkt@sipat.com part number lbt70a39 rev. date 2010-04-09 sipat co., ltd. ( cetc no. 26 research institute ) nanping huayuan road no. 14 chongqing, china, 400060 ver. 1.1 page 3/4 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 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 70mhz saw filter 4mhz bandwidth part number: lbt70a39 typical performance fre q uenc y res p ond passband res p ond 55 60 65 70 75 80 85 -115.969 -105.969 -95.969 -85.969 -75.969 -65.969 -55.969 -45.969 -35.969 -25.969 -15.969 type performance frequency(mhz) magnitude(db) 3db cf = 70.0439mhz 1db = 3.9212mhz 3db = 4.1615mhz 35db = 4.8693mhz 40db = 4.9104mhz insert loss = -25.969db passband ripple = 0.89911db ultimate rejection = 55.4003db group delay = 129.5807ns phase linearity = 8.1825deg delay = 3966.7242ns horizontal: 5mhz/div vertical: 10db/div 64 66 68 70 72 74 76 -27.969 -27.469 -26.969 -26.469 -25.969 -25.469 -24.969 -24.469 horizontal: 2mhz/div vertical: 0.5db/div grou p dela y variation ( f02mhz ) phase linearit y( f02mhz ) 62 64 66 68 70 72 74 76 78 3500 3600 3700 3800 3900 4000 4100 4200 4300 4400 x: 70 y: 4021 type performance frequency(mhz) group delay time(ns) x: 71.99 y: 3945 x: 68.01 y: 3888 horizontal: 2mhz/div vertical: 100ns/div 62 64 66 68 70 72 74 76 78 -20 -15 -10 -5 0 5 10 15 20 x: 70 y: -0.6003 type performance frequency(mhz) degree(deg) x: 71.99 y: 3.155 x: 68.01 y: -1.78 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
phone: +86-23-62808818 fax: +86-23-62805284 www.sipatsaw.com / sawmkt@sipat.com part number lbt70a39 rev. date 2010-04-09 sipat co., ltd. ( cetc no. 26 research institute ) nanping huayuan road no. 14 chongqing, china, 400060 ver. 1.1 page 4/4 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 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 70mhz saw filter 4mhz bandwidth part number: lbt70a39 maximum ratings operating temperature range c [-40 c;+85c] storage temperature range c [-40 c;+105c] dc voltage v 0 input power dbm 10 max esd class 1
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