LBT25004

China Electronics Technology Group Corporation No.26 Research Institute 250MHz SAW Filter 3MHz Bandwidth Part Number: LBT25004 www.sipatsaw.com SIPAT Co., Ltd. Features For RF SAW filter Single-ended operation Ceramic Surface Mount Package Small size No matching required for operation at 50Ω RoHS compliant (2002/95/EC), Pb-free Specifications Parameter Center Frequency Insertion Loss 1 dB Bandwidth 3 dB Bandwidth Passband Variation(248.75～251.25MHz) Absolute Delay Ultimate Rejection 1～239MHz 260～300MHz Unit MHz dB MHz MHz dB usec dB dB KHz/°C °C V dBm - Minimum 2.5 3.2 35 35 Typical 250 2.2 3.14 3.99 1 0.33 54 50 -8.0 36LT 25 0 Maximum 3 1.5 - Material Temperature coefficient Substrate Material Ambient Temperature DC Voltage Input Power ESD Class Package Size Notes: 1. 2. 3. 4. - 1A 10 SMD3.8*3.8 All specifications are based on the test circuit shown; In production, all specifications are measured by Agilent Network analyzer and full 2 port calibration at room temperature; Electrical margin has been built into the design to account for the variations due to temperature drift and manufacturing tolerances; This is the optimum impedance in order to achieve the performance show. SIPAT Co., Ltd. ( CETC No.26 Research Institute ) #14 Nanping Huayuan Road, Chongqing, China, 400060 Tel: +86-23-62808818 Part Number Rev. Date Ver. LBT25004 2010-12-24 1.0 Page 1/3 Fax: +86-23-62808382 www.sipatsaw.com / sales@sipat.com China Electronics Technology Group Corporation No.26 Research Institute 250MHz SAW Filter 3MHz Bandwidth Part Number: LBT25004 www.sipatsaw.com SIPAT Co., Ltd. Matching Configuration Source/Load Impedance=50 ohm INPUT 50Ω OUTPUT 50Ω Notes - Component values may change depending on board layout. Package Dimension 3.80 0.15 8 7 1 Pad Configuration: Input: 3.80 0.15 2 SIPAT 25004 XXYYZZ 4 Output: 6 Ground: All Others 6 1.50 0.25 Package: SMD3.8*3.8 SIPAT Co., Ltd. ( CETC No.26 Research Institute ) #14 Nanping Huayuan Road, Chongqing, China, 400060 Tel: +86-23-62808818 2 3 7 6 1.27 5 5 Marking Configuration: 1) •: Pad Number 1 Index 2) SIPAT: Manufacturer Name 3) 25004: Part Number 1.00 0.15 8 1 2 3 4) XXYY: Date(Year/month) 5) ZZ: Identified Code 4 Fax: +86-23-62808382 0.60 Unit: mm Part Number Rev. Date Ver. LBT25004 2010-12-24 1.0 Page 2/3 www.sipatsaw.com / sales@sipat.com China Electronics Technology Group Corporation No.26 Research Institute 250MHz SAW Filter 3MHz Bandwidth Part Number: LBT25004 www.sipatsaw.com SIPAT Co., Ltd. Typical Performance Frequency Response Type Performance 7.7987 -2.2013 -12.2013 -1.7013 -0.7013 Passband Response Type Performance -1.2013 -22.2013 Magnitude(dB) A m plitude ripple(dB ) -32.2013 -42.2013 -52.2013 -62.2013 -2.2013 -2.7013 -3.2013 -3.7013 -72.2013 -82.2013 -92.2013 235 240 245 250 Frequency(MHz) 255 260 265 -4.2013 -4.7013 246 247 248 249 250 Frequency(MHz) 251 252 253 254 Horizontal: 5MHz/Div Vertical: 10dB/Div Horizontal: 1MHz/Div Vertical: 0.5dB/Div Group Delay Variation(f0±1.5MHz) Type Performance 1400 40 Phase Linearity(f0±1.5MHz) Type Performance 1200 30 1000 20 800 600 G roup Delay T im e(ns ) X: 248.5 Y: 410.8 X: 251.5 Y: 424.1 X: 250 Y: 317.5 10 X: 248.5 Y: 2.352 400 Degree(deg) X: 250 Y: 0.451 X: 251.5 Y: -4.834 0 200 -10 0 -200 -20 -400 -30 -600 247 248 249 250 Frequency(MHz) 251 252 253 -40 247 248 249 250 Frequency(MHz) 251 252 253 Horizontal: 1MHz/Div Vertical: 200ns/Div Horizontal: 1MHz/Div Vertical: 10deg/Div Smith Chart S11 +j1.0 +j0.5 +j2.0 Smith Chart S22 +j1.0 +j0.5 +j2.0 +j0.2 +j5.0 +j0.2 +j5.0 0.2 0.5 1.0 2.0 5.0 0.2 0.5 1.0 2.0 0.0 ∞ 0.0 5.0 ∞ -j0.2 -j5.0 -j0.2 -j5.0 -j0.5 -j1.0 -j2.0 -j0.5 -j1.0 -j2.0 SIPAT Co., Ltd. ( CETC No.26 Research Institute ) #14 Nanping Huayuan Road, Chongqing, China, 400060 Tel: +86-23-62808818 Part Number Rev. Date Ver. LBT25004 2010-12-24 1.0 Page 3/3 Fax: +86-23-62808382 www.sipatsaw.com / sales@sipat.com