1747.5MHz SAW Filter 75MHz Bandwidth China Electronics Technology Group Corporation No.26 Research Institute SIPAT Co., Ltd. Part Number: LBT174802 www.sipatsaw.com 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 Unit Minimum Typical Maximum Center Frequency MHz - 1747.5 - 1710～1765MHz dB - 2.7 4 1765～1785MHz dB - 2.7 3.3 Passband Variation(1710～1785MHz) dB - 1 2.1 VSWR(1710～1785MHz) - - 1.9 2.5 10～1690MHz dB 15 23 - 1690～1695MHz dB 4 15 - 1800～1805MHz dB 4 8 - 1805～1880MHz dB 15 20 - 1880～3200MHz dB 20 27 - Insertion Loss Ultimate Rejection Material Temperature coefficient KHz/°C -55.9 Substrate Material - 42LT Ambient Temperature °C 25 Operating Temperature Range °C DC Voltage V Input Power dBm ESD Class - -40 - +85 0 - - 15 1A SMD3.0*3.0 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 LBT174802 Rev. Date 2010-04-27 Ver. 1.0 Fax: +86-23-62808382 Page www.sipatsaw.com / [email protected] 1/3 1747.5MHz SAW Filter 75MHz Bandwidth China Electronics Technology Group Corporation No.26 Research Institute SIPAT Co., Ltd. Part Number: LBT174802 www.sipatsaw.com Matching Configuration Source/Load Impedance=50 ohm OUTPUT 50Ω INPUT 50Ω Notes - Component values may change depending on board layout. Package Dimension 3.0 1.5 Pad Configuration: F E C D 3.0 B F A E B D C Input: 2 Output: 5 0.6 1.6 A Ground: All Others 1.40MAX 0.85 Package: SMD3.0*3.0 Unit: mm SIPAT Co., Ltd. ( CETC No.26 Research Institute ) #14 Nanping Huayuan Road, Chongqing, China, 400060 Tel: +86-23-62808818 Part Number LBT174802 Rev. Date 2010-04-27 Ver. 1.0 Fax: +86-23-62808382 Page www.sipatsaw.com / [email protected] 2/3 1747.5MHz SAW Filter 75MHz Bandwidth China Electronics Technology Group Corporation No.26 Research Institute SIPAT Co., Ltd. Part Number: LBT174802 www.sipatsaw.com Typical Performance Frequency Response Passband Response Type Performance Type Performance 9.0606 -0.9394 -0.4394 -10.9394 -0.9394 -20.9394 A m plitude ripple(dB ) M agnitude(dB ) -30.9394 -40.9394 -50.9394 -60.9394 -1.4394 -1.9394 -2.4394 -70.9394 -2.9394 -80.9394 -90.9394 1500 1600 1700 1800 1900 -3.4394 2000 1660 1680 1700 1720 Frequency(MHz) Horizontal: 100MHz/Div Vertical: 10dB/Div 1740 1760 Frequency(MHz) Horizontal: 20MHz/Div Group Delay Variation(f0±37.5MHz) 1780 1800 1820 1840 Vertical: 0.5dB/Div Phase Linearity(f0±37.5MHz) Type Performance Type Performance 60 60 40 40 X: 1710 Y: 2.703 X: 1785 Y: 14.63 X: 1710 Y: 14.36 Degree(deg) G roup Delay T im e(ns ) 20 20 0 0 X: 1785 Y: -15.64 -20 -40 -20 -60 -40 1660 1680 1700 1720 1740 Frequency(MHz) 1760 Horizontal: 20MHz/Div 1780 1800 -80 1660 1820 Vertical: 20ns/Div 1680 1700 1720 Horizontal: 20MHz/Div VSWR11 1800 1820 1840 Vertical: 20deg/Div Type Performance (VSWR2) Type Performance (VSWR1) 2.6 2.4 2.4 2.2 2.2 2 2 X: 1710 Y: 1.721 1.6 1.4 1.2 1.2 1 1 0.8 0.8 1700 1750 Frequency(MHz) 1800 SIPAT Co., Ltd. ( CETC No.26 Research Institute ) #14 Nanping Huayuan Road, Chongqing, China, 400060 Tel: +86-23-62808818 0.6 1850 X: 1785 Y: 1.713 1.6 1.4 1650 X: 1710 Y: 1.782 1.8 X: 1785 Y: 1.673 M agnitude(dB ) 1.8 M agnitude(dB ) 1780 VSWR22 2.6 0.6 1740 1760 Frequency(MHz) 1650 1700 1750 Frequency(MHz) Part Number LBT174802 Rev. Date 2010-04-27 Ver. 1.0 Fax: +86-23-62808382 1800 1850 Page www.sipatsaw.com / [email protected] 3/3