LB297DS01 SIPAT | Alldatasheet
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Phone: +86-23-62920684 Fax: +86-23-62805284 www.sipatsaw.com / sawmkt@sipat.com Part Number LB297DS01 Rev. Date 2011-2-14 SIPAT Co., Ltd. ( CETC No. 26 Research Institute ) Nanping Huayuan Road No. 14 Chongqing, China, 400060 Rev. 4.1 Page 1/3 CChhiinnaa EElleeccttrroonniiccss TTeecchhnnoollooggyy GGrroouupp CCoorrppoorraattiioonn NNoo..2266 RReesseeaarrcchh IInnssttiittuuttee SSIIPPAATT CCoo..,, LLttdd.. wwwwww..ssiippaattssaaww..ccoomm 297.5MHz SAW Filter 35MHz Bandwidth Part Number: LB297DS01 Specifications Parameter Unit Minimum Typical Maximum Center Frequency MHz 297.5 Insertion Loss dB 12.5 14 1 dB Bandwidth MHz 35 37.3 3 dB Bandwidth MHz 38.9 35 dB Bandwidth MHz 44.2 67 Passband Variation dB 0.6 Ultimate Rejection(f0±35MHz) dB 35 40 Group Delay Variation nsec 60 Subatrate Material YZ Ambient Temperature °C 25 Notes: 1. All specifications are based on the test circuit shown 2. In production, devices will be tested at room temperature 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=39nH L2=27nH C1=10pF C2 =12pF Source/Load Impedance=50 ohm Notes - Component values may change depending on board layout. L2L1 C1 C2
Phone: +86-23-62920684 Fax: +86-23-62805284 www.sipatsaw.com / sawmkt@sipat.com Part Number LB297DS01 Rev. Date 2011-2-14 SIPAT Co., Ltd. ( CETC No. 26 Research Institute ) Nanping Huayuan Road No. 14 Chongqing, China, 400060 Rev. 4.1 Page 2/3 CChhiinnaa EElleeccttrroonniiccss TTeecchhnnoollooggyy GGrroouupp CCoorrppoorraattiioonn NNoo..2266 RReesseeaarrcchh IInnssttiittuuttee SSIIPPAATT CCoo..,, LLttdd.. wwwwww..ssiippaattssaaww..ccoomm 297.5MHz SAW Filter 35MHz Bandwidth Part Number: LB297DS01 Package Dimension 678 1 32 8 7 6 7.00±0.15 5.00±0.15 1.50±0.15 0.80 0.60 1.00 2.54 1.27 SIPAT LB297DS01 XXYYZZ Input:9 Outpu t:4
Phone: +86-23-62920684 Fax: +86-23-62805284 www.sipatsaw.com / sawmkt@sipat.com Part Number LB297DS01 Rev. Date 2011-2-14 SIPAT Co., Ltd. ( CETC No. 26 Research Institute ) Nanping Huayuan Road No. 14 Chongqing, China, 400060 Rev. 4.1 Page 3/3 CChhiinnaa EElleeccttrroonniiccss TTeecchhnnoollooggyy GGrroouupp CCoorrppoorraattiioonn NNoo..2266 RReesseeaarrcchh IInnssttiittuuttee SSIIPPAATT CCoo..,, LLttdd.. wwwwww..ssiippaattssaaww..ccoomm 297.5MHz SAW Filter 35MHz Bandwidth Part Number: LB297DS01 Typical Performance Frequency Respond Passband Respond 237 252 267 282 297 312 327 342 357 -82.345 -72.345 -62.345 -52.345 -42.345 -32.345 -22.345 -12.345 x 10 -17 -16 -15 -14 -13 -12 -11 -10 f scale=10MHz Wideband Respond Group delay variation(f0±16MHz) -92.8275 -82.8275 -72.8275 -62.8275 -52.8275 -42.8275 -32.8275 -22.8275 VSWR S11 VSWR S22