LBT174802

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