374MHz SAW Filter 4MHz Bandwidth China Electronics Technology Group Corporation No.26 Research Institute SIPAT Co., Ltd. Part Number: LBT37402 www.sipatsaw.com 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 - 374 - Insertion Loss dB - 15 18 1 dB Bandwidth MHz 4.45 4.51 - 3 dB Bandwidth MHz - 5.49 - 20 dB Bandwidth MHz - 7.05 7.5 40 dB Bandwidth MHz - 8.35 9 Passband Variation dB - 0.6 1 Absolute Delay usec - 1.6 - Ultimate Rejection dB - 43 - Material Temperature coefficient KHz/°C -6.7 Substrate Material - 112LT Ambient Temperature °C 25 DC Voltage V 0 Input Power dBm ESD Class - - - 10 1A SMD13.3*6.5 Package Size Notes: 1. All specifications are based on the test circuit shown; 2. In production, all specifications are measured by Agilent 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. SIPAT Co., Ltd. ( CETC No.26 Research Institute ) #14 Nanping Huayuan Road, Chongqing, China, 400060 Tel: +86-23-62808818 Part Number LBT37402 Rev. Date 2011-04-27 Ver. 1.0 Fax: +86-23-62808382 Page www.sipatsaw.com / [email protected] 1/3 374MHz SAW Filter 4MHz Bandwidth China Electronics Technology Group Corporation No.26 Research Institute SIPAT Co., Ltd. Part Number: LBT37402 www.sipatsaw.com Matching Configuration INPUT 50 L3 L1 L1=L3=15nH OUTPUT 50 5 10 C1=8.2pF L2=27nH C2=22pF Source/Load Impedance=50 ohm C1 L2 C2 Notes - Component values may change depending on board layout. Package Dimension +0.2 13.3-0.1 Pad Configuration: Input: Output: 5 +0.2 6.5-0.1 SIPAT LBT37402 XXYYZZ 10 Ground: 1,2,3,4,6,7,8,9 Marking Configuration: 1) •: Pad Number 1 Index 2) SIPAT: Manufacturer Name 0.4 1.51 0.2 0.76 1.02 0.13 4) XXYY: Date(Year/month) 5) ZZ: Identified Code 2.9 0.51 3) LBT37402: Part Number 0.6 1.905 0.15 Package: SMD13.3*6.5 Unit: mm SIPAT Co., Ltd. ( CETC No.26 Research Institute ) #14 Nanping Huayuan Road, Chongqing, China, 400060 Tel: +86-23-62808818 Part Number LBT37402 Rev. Date 2011-04-27 Ver. 1.0 Fax: +86-23-62808382 Page www.sipatsaw.com / [email protected] 2/3 374MHz SAW Filter 4MHz Bandwidth China Electronics Technology Group Corporation No.26 Research Institute SIPAT Co., Ltd. Part Number: LBT37402 www.sipatsaw.com Typical Performance Frequency Response Passband Response Type Performance Type Performance -4.9242 -13.4242 -14.9242 -13.9242 -24.9242 -14.4242 -14.9242 Amplitude ripple(dB) -44.9242 -54.9242 -64.9242 -15.4242 -15.9242 -74.9242 -16.4242 -84.9242 -16.9242 -94.9242 -104.9242 350 355 360 365 370 375 380 Frequency(MHz) Horizontal: 5MHz/Div 385 390 -17.4242 368 395 Vertical: 10dB/Div 370 372 374 Frequency(MHz) Horizontal: 2MHz/Div Group Delay Variation(f0±2MHz) 376 378 380 Vertical: 0.5dB/Div Phase Linearity(f0±2MHz) Type Performance Type Performance 2200 25 20 2000 15 10 1800 Degree(deg) 5 Group Delay Time(ns) 1600 X: 376 Y: 1604 X: 374 Y: 1561 X: 372 Y: 1559 X: 376 Y: 2.597 X: 372 Y: 1.924 X: 374 Y: -0.1711 0 -5 -10 1400 -15 -20 1200 -25 374 Frequency(MHz) 375 Horizontal: 1MHz/Div 376 377 -30 370 378 Vertical: 200ns/Div 371 372 373 Horizontal: 1MHz/Div Smith Chart S11 +j2.0 378 +j5.0 0.0 0.5 ∞ -j5.0 -j0.2 +j2.0 +j0.2 0.2 2.0 1.0 0.5 377 Vertical: 5deg/Div +j0.5 +j5.0 +j0.2 ∞ -j5.0 -j0.2 -j2.0 -j2.0 -j0.5 -j1.0 -j1.0 SIPAT Co., Ltd. ( CETC No.26 Research Institute ) #14 Nanping Huayuan Road, Chongqing, China, 400060 Tel: +86-23-62808818 376 +j1.0 +j0.5 -j0.5 375 Smith Chart S22 +j1.0 0.0 374 Frequency(MHz) 5.0 373 2.0 372 1.0 371 5.0 1000 370 0.2 Magnitude(dB) -34.9242 Part Number LBT37402 Rev. Date 2011-04-27 Ver. 1.0 Fax: +86-23-62808382 Page www.sipatsaw.com / [email protected] 3/3